|
Home
|
E-Submission/Review
|
Sitemap
|
Editorial Office
|
목적 및 범위
Aims and Scope
저널 정보
About the Journal
편집위원회
Editorial Board
Open Access
편집국
Editorial Office
논문투고안내
Instructions for Authors
연구윤리규정
Research and Publication Ethics
필수 점검 사항
Checklist
논문투고사이트
E-Submission
저작권이양동의서
Copyright Transfer Agreement
발간호 검색
All issues
출판전 논문
Online First
현재 발행 호
Current Issue
많이 읽힌 논문
Most Read Articles
많이 인용된 논문
Most Cited Articles
개별 논문 검색
Korean J. Met. Mater.
Search
저자 색인
Author Index
Korean Journal of Metals and Materials
Search
> Browse Articles > Search
E
f
f
e
c
t
o
f
S
i
n
g
l
e
C
r
y
s
t
a
l
G
r
o
w
t
h
a
n
d
S
o
l
i
d
i
f
i
c
a
t
i
o
n
G
r
a
i
n
B
o
u
n
d
a
r
i
e
s
o
n
W
e
l
d
S
o
l
i
d
i
f
i
c
a
t
i
o
n
C
r
a
c
k
i
n
g
B
e
h
a
v
i
o
r
o
f
C
M
S
X
-
4
S
u
p
e
r
a
l
l
o
y
CMSX-4 초내열합금 용접 응고균열 거동에 미치는 단결정 성장 및 응고결정립계의 영향
K
y
e
o
n
g
-
M
i
n
K
i
m
,
Y
e
-
S
e
o
n
J
e
o
n
g
,
D
.
V
.
K
i
r
a
n
,
S
u
k
-
H
w
a
n
K
w
o
n
,
S
e
o
n
g
-
M
o
o
n
S
e
o
,
E
u
n
-
J
o
o
n
C
h
u
n
김경민, 정예선, D.V. Kiran, 권석환, 서성문, 천은준
Korean J. Met. Mater.
2024;62(1):22-31. Published online 2023 Dec 29
DOI:
https://doi.org/10.3365/KJMM.2024.62.1.22
Abstract
Single-crystal superalloys have been popularly employed in high-temperature parts of gas turbines, such as blades. However, the welds of such alloys are highly susceptible to solidification cracking, which limits their applicability to high-temperature turbine blades. In this study, the effects of characteristics of weld solidification on solidification cracking susceptibilities (solidification.....
More
M
e
t
h
o
d
o
f
S
u
p
p
r
e
s
s
i
n
g
S
o
l
i
d
i
f
i
c
a
t
i
o
n
C
r
a
c
k
i
n
g
b
y
L
a
s
e
r
S
u
r
f
a
c
e
M
e
l
t
i
n
g
a
n
d
E
p
i
t
a
x
i
a
l
G
r
o
w
t
h
B
e
h
a
v
i
o
r
f
o
r
D
i
r
e
c
t
i
o
n
a
l
l
y
S
o
l
i
d
i
f
i
e
d
2
4
7
L
C
S
u
p
e
r
a
l
l
o
y
레이저 급속 표면용융에 따른 일방향응고 247LC 초내열합금의 에피택셜 성장 및 응고균열 억제 방안
K
y
e
o
n
g
-
M
i
n
K
i
m
,
E
u
n
-
J
o
o
n
C
h
u
n
김경민, 천은준
Korean J. Met. Mater.
2023;61(4):252-260. Published online 2023 Mar 22
DOI:
https://doi.org/10.3365/KJMM.2023.61.4.252
Abstract
In this study, the relationship between solidification cracking and epitaxial growth behavior with the high-speed laser surface melting of a directionally solidified 247LC superalloys was fundamentally and metallurgically investigated, to develop a successful welding procedure for the next generation of gas turbine blades. Under typical laser surface melting conditions (scan.....
More
Crossref 2
V
a
r
i
a
t
i
o
n
o
f
l
i
q
u
a
t
i
o
n
c
r
a
c
k
i
n
g
s
u
s
c
e
p
t
i
b
i
l
i
t
y
f
o
r
o
v
e
r
a
g
e
d
2
4
7
L
C
s
u
p
e
r
a
l
l
o
y
r
e
p
a
i
r
w
e
l
d
h
e
a
t
a
f
f
e
c
t
e
d
z
o
n
e
장시간 열간노출에 따른 247LC 초내열합금 보수용접 열영향부의 액화균열민감도 변화
H
y
e
-
E
u
n
J
e
o
n
g
,
S
e
o
n
g
-
M
o
o
n
S
e
o
,
E
u
n
-
J
o
o
n
C
h
u
n
정혜은, 서성문, 천은준
Korean J. Met. Mater.
2023;61(2):69-75. Published online 2023 Jan 27
DOI:
https://doi.org/10.3365/KJMM.2023.61.2.69
Abstract
In this study, the liquation cracking temperature range (LCTR) of over-aged 247LC superalloy repair welds was quantitatively evaluated using spot-Varestraint testing, especially for application in the repair weld heat-affected zone (HAZ). The metallurgical mechanism of the evaluated liquation cracking susceptibility and variation of the LCTRs of the over-aged 247LC superalloys.....
More
Crossref 2
E
f
f
e
c
t
o
f
M
e
t
a
l
F
i
l
m
T
h
i
c
k
n
e
s
s
o
n
S
t
r
a
i
n
-
S
e
n
s
i
n
g
P
e
r
f
o
r
m
a
n
c
e
o
f
C
r
a
c
k
-
B
a
s
e
d
S
t
r
e
t
c
h
a
b
l
e
H
y
b
r
i
d
P
i
e
z
o
r
e
s
i
s
t
i
v
e
E
l
e
c
t
r
o
d
e
금속 박막 두께가 크랙 기반 신축성 하이브리드 압저항 전극의 스트레인 감지 특성에 미치는 영향
J
i
-
Y
e
o
n
N
o
h
,
M
i
r
a
e
K
i
m
,
J
o
n
g
-
M
a
n
K
i
m
노지연, 김미래, 김종만
Korean J. Met. Mater.
2022;60(12):933-939. Published online 2022 Nov 25
DOI:
https://doi.org/10.3365/KJMM.2022.60.12.933
Abstract
In recent decades, many research efforts have been devoted to developing high-performance stretchable strain sensors due to their potential for application in various emerging wearable sensor systems. This work presents a facile yet highly efficient way of modulating the sensing performance of a thin metal film/conductive composite hybrid piezoresistor-based stretchable.....
More
Crossref 1
E
v
a
l
u
a
t
i
o
n
o
f
L
i
q
u
a
t
i
o
n
C
r
a
c
k
i
n
g
S
u
s
c
e
p
t
i
b
i
l
i
t
y
o
f
C
M
2
4
7
L
C
S
u
p
e
r
a
l
l
o
y
R
e
p
a
i
r
W
e
l
d
s
v
i
a
P
r
e
-
W
e
l
d
V
a
r
e
s
t
r
a
i
n
t
T
e
s
t
Pre-weld Varestraint 시험을 이용한 CM247LC 초내열합금 보수용접부 액화균열 민감도 평가
Y
e
-
S
e
o
n
J
e
o
n
g
,
J
i
n
g
o
n
J
e
o
n
g
,
S
e
-
Y
u
n
K
i
m
,
S
u
n
g
-
H
w
a
n
B
a
e
,
U
i
j
o
n
g
L
e
e
,
H
y
u
n
g
s
o
o
L
e
e
,
S
e
o
n
g
-
M
o
o
n
S
e
o
,
E
u
n
-
J
o
o
n
C
h
u
n
정예선, 정진곤, 김세윤, 배성환, 이의종, 이형수, 서성문, 천은준
Korean J. Met. Mater.
2022;60(4):272-281. Published online 2022 Mar 28
DOI:
https://doi.org/10.3365/KJMM.2022.60.4.272
Abstract
In this study, the liquation cracking susceptibility in the heat-affected zone of CM247LC superalloy gas turbine blades during repair welding was quantitatively evaluated using a newly developed pre-weld Varestraint test method. The repair welding geometry was replicated through Varestraint tests for the pre-weld bead. The liquation cracking susceptibility, that is,.....
More
Web of Science 2
Crossref 5
A
S
t
u
d
y
o
n
G
r
a
p
h
e
n
e
S
t
r
u
c
t
u
r
e
C
o
n
t
r
o
l
U
s
i
n
g
A
m
m
o
n
i
a
G
a
s
f
o
r
a
H
i
g
h
l
y
S
e
n
s
i
t
i
v
e
P
r
e
s
s
u
r
e
S
e
n
s
o
r
암모니아를 이용한 그래핀 구조 제어 및 고감도 압력 센서로의 적용
Y
e
o
n
W
o
o
k
J
u
n
g
,
S
e
u
n
g
G
e
u
n
J
o
,
H
a
e
-
I
n
M
o
o
n
,
Y
o
u
n
g
W
o
n
K
i
m
,
Y
u
j
i
n
S
h
i
n
,
G
i
l
-
R
y
e
o
n
g
P
a
r
k
,
J
u
n
g
W
o
o
L
e
e
정연욱, 조승근, 문해인, 김영원, 신유진, 박길령, 이정우
Korean J. Met. Mater.
2022;60(3):206-212. Published online 2022 Feb 8
DOI:
https://doi.org/10.3365/KJMM.2022.60.3.206
Abstract
Graphene has been used in various fields because of its excellent mechanical, optical, electrical, and thermal properties. However, its intrinsic low sensitivity to pressure limits its sensor applications. To overcome this drawback, many researchers have tried to improve the sensitivity by controlling the defects on the graphene, but have yet.....
More
Web of Science 2
Crossref 2
E
f
f
e
c
t
o
f
P
r
e
c
i
p
i
t
a
t
e
s
a
n
d
C
o
l
d
W
o
r
k
i
n
g
o
n
t
h
e
R
e
h
e
a
t
C
r
a
c
k
i
n
g
o
f
S
T
S
3
4
7
A
u
s
t
e
n
i
t
i
c
S
t
a
i
n
l
e
s
s
S
t
e
e
l
STS 347 오스테나이트계 스테인리스강의 재열균열에 미치는 석출물과 냉간 가공의 영향
I
l
Y
o
o
,
S
e
o
k
-
W
o
o
K
o
,
J
a
e
y
u
n
K
i
m
,
B
y
o
u
n
g
c
h
u
l
H
w
a
n
g
유일, 고석우, 김재윤, 황병철
Korean J. Met. Mater.
2022;60(2):102-113. Published online 2022 Jan 12
DOI:
https://doi.org/10.3365/KJMM.2022.60.2.102
Abstract
The aim of this study was to investigate the effect of precipitates and cold working on the reheat cracking of STS 347 austenitic stainless steel. Three different heat treatments to form NbC and M
23
C
6
precipitates were applied to the STS 347 austenitic stainless steel and 10% pre-strain was additionally introduced.....
More
Web of Science 2
Crossref 2
E
f
f
e
c
t
o
f
E
R
N
i
F
e
C
r
-
2
F
i
l
l
e
r
M
e
t
a
l
o
n
S
o
l
i
d
i
f
i
c
a
t
i
o
n
C
r
a
c
k
i
n
g
S
u
s
c
e
p
t
i
b
i
l
i
t
y
o
f
C
M
2
4
7
L
C
S
u
p
e
r
a
l
l
o
y
W
e
l
d
s
ERNiFeCr-2 용가재 적용에 따른 CM247LC 초내열합금 용접부 응고균열 민감도 변화 거동
K
y
e
o
n
g
-
M
i
n
K
i
m
,
H
y
e
-
E
u
n
J
e
o
n
g
,
Y
e
-
S
e
o
n
J
e
o
n
g
,
U
i
j
o
n
g
L
e
e
,
H
y
u
n
g
s
o
o
L
e
e
,
S
e
o
n
g
-
M
o
o
n
S
e
o
,
E
u
n
-
J
o
o
n
C
h
u
n
김경민, 정혜은, 정예선, 이의종, 이형수, 서성문, 천은준
Korean J. Met. Mater.
2021;59(10):698-708. Published online 2021 Sep 6
DOI:
https://doi.org/10.3365/KJMM.2021.59.10.698
Abstract
The metallurgical aspects of weld solidification cracking in Ni-based superalloys (with Ti+Al > 5 mass%) have not been widely investigated thus far. Herein, the solidification cracking susceptibility of the CM247LC superalloy and its welds with ERNiFeCr-2 filler wire was quantitatively evaluated using a novel modified Varestraint testing method, for the.....
More
Crossref 2
E
v
a
l
u
a
t
i
o
n
a
n
d
C
o
n
t
r
o
l
o
f
L
i
q
u
a
t
i
o
n
C
r
a
c
k
i
n
g
S
u
s
c
e
p
t
i
b
i
l
i
t
y
f
o
r
C
M
2
4
7
L
C
S
u
p
e
r
a
l
l
o
y
W
e
l
d
H
e
a
t
-
A
f
f
e
c
t
e
d
Z
o
n
e
v
i
a
V
i
s
u
a
l
i
z
a
t
i
o
n
-
B
a
s
e
d
V
a
r
e
s
t
r
a
i
n
t
T
e
s
t
가시화 기반 Varestraint 시험을 이용한 CM247LC 초내열합금 용접 열영향부의 액화균열 민감도 평가 및 제어
Y
e
-
S
e
o
n
J
e
o
n
g
,
K
y
e
o
n
g
-
M
i
n
K
i
m
,
H
y
u
n
g
s
o
o
L
e
e
,
S
e
o
n
g
-
M
o
o
n
S
e
o
,
E
u
n
-
J
o
o
n
C
h
u
n
정예선, 김경민, 이형수, 서성문, 천은준
Korean J. Met. Mater.
2021;59(7):445-458. Published online 2021 Jun 11
DOI:
https://doi.org/10.3365/KJMM.2021.59.7.445
Abstract
The metallurgical aspects of weld cracking in Ni-based superalloys remain relatively unexplored in existing research. The present study performed comprehensive metallurgical and manufactural investigations into the weldability of an Ni-based superalloy, CM247LC, from the viewpoint of the liquation cracking behavior and its susceptibility. Metallurgical solutions to suppress the liquation-cracking susceptibility.....
More
Web of Science 1
Crossref 5
E
f
f
e
c
t
o
f
T
a
i
l
o
r
e
d
M
i
c
r
o
s
t
r
u
c
t
u
r
e
s
i
n
C
a
O
-
A
d
d
e
d
A
Z
3
1
E
x
t
r
u
s
i
o
n
M
a
t
e
r
i
a
l
o
n
T
e
n
s
i
l
e
,
H
i
g
h
C
y
c
l
e
F
a
t
i
g
u
e
a
n
d
F
a
t
i
g
u
e
C
r
a
c
k
P
r
o
p
a
g
a
t
i
o
n
P
r
o
p
e
r
t
i
e
s
CaO 첨가 AZ31 압출재의 개량된 미세조직이 인장, 고주기 피로 및 피로 균열 전파 특성에 미치는 영향
Y
o
u
n
g
-
K
y
u
n
K
i
m
,
M
i
n
-
J
o
n
g
K
i
m
,
Y
u
-
J
i
n
H
w
a
n
g
,
S
h
a
e
.
K
.
K
i
m
,
H
y
u
n
-
K
y
u
L
i
m
,
K
e
e
-
A
h
n
L
e
e
김영균, 김민종, 황유진, 김세광, 임현규, 이기안
Korean J. Met. Mater.
2021;59(6):365-373. Published online 2021 May 26
DOI:
https://doi.org/10.3365/KJMM.2021.59.6.365
Abstract
The effect of tailored microstructures in 0.5 wt% CaO added AZ31 on tensile, high-cycle fatigue, and fatigue crack growth properties was examined. By adding CaO, the average grain size (AGS) was significantly reduced from 4.25±2.32 μm (conventional AZ31) to 2.42±1.60 μm (CaO-AZ31). The fineprecipitates of CaO-AZ31 were more evenly distributed.....
More
Web of Science 2
Crossref 1
E
v
a
l
u
a
t
i
o
n
o
f
L
i
q
u
a
t
i
o
n
C
r
a
c
k
i
n
g
B
e
h
a
v
i
o
r
a
n
d
S
u
s
c
e
p
t
i
b
i
l
i
t
y
i
n
H
e
a
t
-
A
f
f
e
c
t
e
d
Z
o
n
e
o
f
C
M
2
4
7
L
C
S
u
p
e
r
a
l
l
o
y
W
e
l
d
s
f
o
r
T
u
r
b
i
n
e
B
l
a
d
e
A
p
p
l
i
c
a
t
i
o
n
CM247LC 초내열합금 터빈 블레이드 용접 열영향부의 액화균열 발생 거동 및 민감도 평가
Y
e
-
S
e
o
n
J
e
o
n
g
,
K
y
e
o
n
g
-
M
i
n
K
i
m
,
U
i
j
o
n
g
L
e
e
,
H
y
u
n
g
s
o
o
L
e
e
,
S
e
o
n
g
-
M
o
o
n
S
e
o
,
E
u
n
-
J
o
o
n
C
h
u
n
정예선, 김경민, 이의종, 이형수, 서성문, 천은준
Korean J. Met. Mater.
2020;58(12):875-886. Published online 2020 Dec 4
DOI:
https://doi.org/10.3365/KJMM.2020.58.12.875
Abstract
In this study, the weldability of the as-cast CM247LC superalloy for turbine blade applications was metallurgically evaluated in terms of its hot cracking behavior and susceptibility. For this purpose, a real blade was manufactured using a directional solidification casting process, and gas tungsten arc welding was performed at the tip.....
More
Web of Science 7
Crossref 10
H
y
d
r
o
g
e
n
I
n
d
u
c
e
d
C
r
a
c
k
s
i
n
S
t
a
i
n
l
e
s
s
S
t
e
e
l
3
0
4
i
n
H
y
d
r
o
g
e
n
P
r
e
s
s
u
r
e
a
n
d
S
t
r
e
s
s
C
o
r
r
o
s
i
v
e
A
t
m
o
s
p
h
e
r
e
수소가압 및 응력부식 분위기에서 스테인레스강 SS304의 수소취성균열
B
y
u
n
g
H
a
k
C
h
o
e
,
S
a
n
g
W
o
o
L
e
e
,
J
o
n
g
K
e
e
A
h
n
,
J
i
n
h
e
e
L
e
e
,
T
a
e
W
o
o
n
L
i
m
최병학, 이상우, 안종기, 이진희, 임태운
Korean J. Met. Mater.
2020;58(10):653-659. Published online 2020 Oct 5
DOI:
https://doi.org/10.3365/KJMM.2020.58.10.653
Abstract
The phenomena of hydrogen induced cracking (HIC) in 304 stainless steels was considered in a hydrogen pressure and stress corrosive atmosphere. Microstructures with chloride pits and stress corrosion cracks around the HIC were analyzed by SEM/EDS. Abnormal phase transformations induced by the hydrogen were analyzed using TEM and diffraction. In.....
More
Web of Science 5
Crossref 4
S
t
u
d
y
o
n
H
y
d
r
o
g
e
n
D
i
f
f
u
s
i
o
n
a
n
d
S
u
l
f
i
d
e
S
t
r
e
s
s
C
r
a
c
k
i
n
g
B
e
h
a
v
i
o
r
s
o
f
S
i
m
u
l
a
t
e
d
H
e
a
t
-
A
f
f
e
c
t
e
d
Z
o
n
e
o
f
A
5
1
6
-
6
5
G
r
a
d
e
P
r
e
s
s
u
r
e
V
e
s
s
e
l
C
a
r
b
o
n
S
t
e
e
l
A516-65급 압력용기용 강재의 용접모사 열처리를 통한 용접열영향부의 수소확산 및 황화물응력균열 거동 연구
D
o
n
g
M
i
n
C
h
o
,
J
i
n
-
s
e
o
n
g
P
a
r
k
,
J
i
n
W
o
o
L
e
e
,
S
u
n
g
J
i
n
K
i
m
조동민, 박진성, 이진우, 김성진
Korean J. Met. Mater.
2020;58(9):599-609. Published online 2020 Aug 13
DOI:
https://doi.org/10.3365/KJMM.2020.58.9.599
Abstract
Hydrogen diffusion and sulfide stress cracking of simulated heat-affected zone (HAZ) of A516- 65 grade steel were examined using an electrochemical permeation technique, glycerin volumetric method, and constant loading method. HAZ samples were fabricated using a metal thermal cycle simulator with a welding heat input of 20, 35, and 50.....
More
Web of Science 4
Crossref 4
A
n
a
l
y
s
i
s
o
f
S
t
r
e
s
s
C
o
r
r
o
s
i
o
n
C
r
a
c
k
i
n
g
P
r
o
p
a
g
a
t
i
o
n
o
f
S
S
3
0
4
S
t
a
i
n
l
e
s
s
S
t
e
e
l
U
s
i
n
g
C
r
a
c
k
S
h
a
p
e
a
n
d
E
t
c
h
P
i
t
s
스테인리스강 SS304의 균열 형상과 에치 피트를 이용한 응력부식균열 전파 기구 해석
B
y
u
n
g
H
a
k
C
h
o
e
,
S
a
n
g
W
o
o
L
e
e
,
J
o
n
g
K
e
e
A
h
n
,
J
i
n
h
e
e
L
e
e
최병학, 이상우, 안종기, 이진희
Korean J. Met. Mater.
2020;58(9):583-589. Published online 2020 Aug 19
DOI:
https://doi.org/10.3365/KJMM.2020.58.9.583
Abstract
Austenitic stainless steel SS304 is vulnerable to Cl atmosphere SCC (stress corrosion crack). In this study, SCC phenomena related to stress and corrosion composition were analyzed to identify the mechanism for SCC initiation and propagation in SS304. The microstructure and mechanical properties resulting from crack propagation were analyzed by OM,.....
More
Web of Science 2
Crossref 2
E
f
f
e
c
t
o
f
C
l
a
d
d
i
n
g
C
o
n
d
i
t
i
o
n
s
o
n
S
o
l
i
d
i
f
i
c
a
t
i
o
n
C
r
a
c
k
i
n
g
B
e
h
a
v
i
o
r
d
u
r
i
n
g
D
i
s
s
i
m
i
l
a
r
C
l
a
d
d
i
n
g
o
f
I
n
c
o
n
e
l
A
l
l
o
y
F
M
5
2
a
n
d
3
0
8
L
S
t
a
i
n
l
e
s
s
S
t
e
e
l
t
o
C
a
r
b
o
n
S
t
e
e
l
:
E
v
a
l
u
a
t
i
o
n
o
f
S
o
l
i
d
i
f
i
c
a
t
i
o
n
B
r
i
t
t
l
e
T
e
m
p
e
r
a
t
u
r
e
R
a
n
g
e
b
y
T
r
a
n
s
v
e
r
s
e
V
a
r
e
s
t
r
a
i
n
t
T
e
s
t
인코넬 FM52 및 308L 스테인리스강을 이용한 탄소강 이종 클래딩 및 공정변수에 따른 응고균열 발생 거동 변화: Transverse-Varestraint 시험을 이용한 응고취성 온도범위 평가
Y
o
o
k
y
u
n
g
K
i
m
,
B
y
u
n
g
r
o
k
M
o
o
n
,
N
a
m
h
y
u
n
K
a
n
g
,
E
u
n
-
J
o
o
n
C
h
u
n
김유경, 문병록, 강남현, 천은준
Korean J. Met. Mater.
2020;58(6):403-412. Published online 2020 May 14
DOI:
https://doi.org/10.3365/KJMM.2020.58.6.403
Abstract
In this study, solidification cracking behavior and susceptibility in dissimilar cladding of Inconel alloy FM 52, 308L stainless steel to carbon steel, was investigated by submerged arc welding and transverse−Varestraint testing with gas tungsten arc welding. The effect of cladding conditions on cracking behavior and susceptibility was extensively evaluated, and.....
More
Web of Science 6
Crossref 5
E
f
f
e
c
t
o
f
a
M
e
t
a
l
T
h
i
n
F
i
l
m
'
s
R
e
s
i
d
u
a
l
S
t
r
e
s
s
a
n
d
M
a
n
u
f
a
c
t
u
r
i
n
g
P
r
o
c
e
s
s
o
n
T
h
i
n
F
i
l
m
M
i
c
r
o
-
C
r
a
c
k
박막 잔류응력 및 제조공정에 따른 금속박막층 미세크랙 영향
B
y
u
n
g
-
K
y
u
C
h
o
,
S
e
u
n
g
-
C
h
a
n
H
o
n
g
,
B
y
u
n
g
-
S
a
m
K
i
m
,
J
a
e
-
K
y
u
n
g
C
h
e
o
n
조병규, 홍승찬, 김병삼, 천재경
Korean J. Met. Mater.
2020;58(3):175-181. Published online 2020 Mar 5
DOI:
https://doi.org/10.3365/KJMM.2020.58.3.175
Abstract
In recent automobile trends, the functions of opening and closing the vehicle door are accomplished by touch sensor and smart-phone NFC (Near Field Communication) systems. These convenience features are incorporated into the outdoor handle. However, this function can’t be used when chrome plating is applied to this part for design.....
More
Web of Science 1
Crossref 1
D
e
v
e
l
o
p
m
e
n
t
o
f
A
l
-
B
a
s
e
d
M
e
t
a
l
l
i
c
G
l
a
s
s
C
o
m
p
o
s
i
t
e
s
C
o
n
t
a
i
n
i
n
g
P
b
-
R
i
c
h
C
r
y
s
t
a
l
l
i
n
e
2
<
s
u
p
>
n
d
<
/
s
u
p
>
P
h
a
s
e
결정질 Pb 제2상을 포함하는 Al 계 비정질 합금 개발
W
a
n
K
i
m
,
J
i
n
w
o
o
K
i
m
,
J
e
I
n
L
e
e
,
E
u
n
S
o
o
P
a
r
k
김완, 김진우, 이제인, 박은수
Korean J. Met. Mater.
2020;58(2):77-86. Published online 2020 Jan 8
DOI:
https://doi.org/10.3365/KJMM.2020.58.2.77
Abstract
Liquid immiscible alloy systems present a unique opportunity for designing composites with sphere-dispersed and/or interconnected microstructures. Herein, we demonstrate that the addition of Pb in Al
84
TM
10
RE
6
(TM=Ni,Co,Fe,Ti, RE=La,Ce,Nd,Gd,Y) metallic glasses can result in liquid-liquid phase separation in a liquid immiscibility gap and substantially solidifies into a Pb-rich crystalline phase and.....
More
Web of Science 2
Crossref 2
O
p
t
i
m
i
z
a
t
i
o
n
o
f
E
l
e
c
t
r
o
c
h
e
m
i
c
a
l
V
a
r
i
a
b
l
e
s
o
f
P
u
l
s
e
-
R
e
v
e
r
s
e
E
l
e
c
t
r
o
p
l
a
t
i
n
g
i
n
T
r
i
v
a
l
e
n
t
C
h
r
o
m
i
u
m
B
a
t
h
t
o
E
n
h
a
n
c
e
t
h
e
C
o
r
r
o
s
i
o
n
R
e
s
i
s
t
a
n
c
e
o
f
C
h
r
o
m
i
u
m
F
i
l
m
3가 크롬 도금욕에서 펄스 도금의 전기화학적 변수 최적화를 통한 크롬 도금막의 내식성 향상 연구
C
h
a
e
w
o
n
L
i
m
,
D
o
n
g
w
o
o
k
L
i
m
,
B
o
n
i
l
K
u
,
S
a
n
g
E
u
n
S
h
i
m
,
S
u
n
g
-
H
y
e
o
n
B
a
e
c
k
임채원, 임동욱, 구본일, 심상은, 백성현
Korean J. Met. Mater.
2019;57(10):641-647. Published online 2019 Sep 6
DOI:
https://doi.org/10.3365/KJMM.2019.57.10.641
Abstract
Electroplating chromium films in a trivalent chromium bath has been extensively investigated as a replacement for the conventional hexavalent chromium bath. However, commercialization of the trivalent chromium method has been hindered because the resulting chromium films exhibit inferior mechanical properties compared to hexavalent chromium coated film. In this study, we.....
More
E
f
f
e
c
t
o
f
C
r
a
n
d
N
o
n
S
t
r
e
s
s
C
o
r
r
o
s
i
o
n
C
r
a
c
k
i
n
g
B
e
h
a
v
i
o
r
o
f
F
e
-
1
8
M
n
S
t
e
e
l
Fe-18Mn강의 응력부식균열 거동에 미치는 크롬과 질소의 영향
H
e
e
s
o
o
C
h
o
i
,
S
u
m
i
n
K
i
m
,
H
y
o
k
y
u
n
g
S
u
n
g
,
S
u
n
g
-
J
o
o
n
K
i
m
,
S
a
n
g
s
h
i
k
K
i
m
최희수, 김수민, 성효경, 김성준, 김상식
Korean J. Met. Mater.
2019;57(10):624-631. Published online 2019 Sep 6
DOI:
https://doi.org/10.3365/KJMM.2019.57.10.624
Abstract
High-Mn steels developed for offshore industries require good resistance to stress corrosion cracking (SCC) in seawater. Elements like Cr and N are often added to improve the resistance to SCC. In this study, the SCC behavior of Fe18Mn3Cr0.1N and Fe19Mn19Cr0.6N steels in artificial seawater was examined. Slow strain rate tests.....
More
Web of Science 7
Crossref 6
E
f
f
e
c
t
o
f
I
n
-
S
i
t
u
P
o
s
t
H
e
a
t
i
n
g
o
n
R
e
p
a
i
r
i
n
g
S
T
S
3
1
6
L
B
u
i
l
t
b
y
L
a
s
e
r
P
o
w
d
e
r
B
e
d
F
u
s
i
o
n
U
s
i
n
g
D
i
r
e
c
t
E
n
e
r
g
y
D
e
p
o
s
i
t
i
o
n
레이저로 적층 제조된 STS316L에 대한 직접에너지적층 응용 보수 시 공정 중 후열처리(In-Situ Post Heating) 효과
W
o
o
k
J
i
n
O
h
,
Y
o
n
g
S
o
n
,
D
o
S
i
k
S
h
i
m
오욱진, 손용, 심도식
Korean J. Met. Mater.
2019;57(8):543-553. Published online 2019 Jul 11
DOI:
https://doi.org/10.3365/KJMM.2019.57.8.543
Abstract
The repairing parts were fabricated by PBF (powder bed fusion) using direct energy deposition (DED), interfacial cracks can occur at the interface between the substrate and the area to be repaired. Such interfacial defects are due to the thermal stress induced by the temperature gradient which results from repeated melting.....
More
Web of Science 5
Crossref 5
H
y
d
r
o
g
e
n
-
I
n
d
u
c
e
d
C
r
a
c
k
i
n
g
o
f
L
a
s
e
r
B
e
a
m
a
n
d
G
a
s
M
e
t
a
l
A
r
c
W
e
l
d
s
o
n
A
P
I
X
6
5
S
t
e
e
l
J
u
n
g
h
o
o
n
L
e
e
,
M
y
e
o
n
g
h
y
u
n
K
i
m
,
Y
e
o
n
g
d
o
P
a
r
k
,
C
h
e
o
l
h
o
P
a
r
k
,
C
h
e
o
l
h
e
e
K
i
m
,
N
a
m
h
y
u
n
K
a
n
g
Korean J. Met. Mater.
2019;57(8):491-498. Published online 2019 Jul 11
DOI:
https://doi.org/10.3365/KJMM.2019.57.8.491
Abstract
Hydrogen-induced cracking (HIC) behavior was analyzed for gas metal arc (GMA) and laser beam (LB) welds on American Petroleum Institute (API) X65 steel. The GMA welds consisted of acicular ferrite (AF) with some widmanstatten ferrite (WF), while the LB welds had bainitic ferrite (BF) with some AF. The welds and.....
More
Web of Science 8
Crossref 7
E
f
f
e
c
t
s
o
f
M
o
l
y
b
d
e
n
u
m
o
n
H
I
C
S
u
s
c
e
p
t
i
b
i
l
i
t
y
i
n
N
o
r
m
a
l
i
z
e
d
P
r
e
s
s
u
r
e
V
e
s
s
e
l
S
t
e
e
l
s
f
o
r
S
o
u
r
S
e
r
v
i
c
e
A
p
p
l
i
c
a
t
i
o
n
s
K
i
j
u
n
g
P
a
r
k
,
D
a
e
H
y
u
n
C
h
o
,
M
i
n
-
H
o
P
a
r
k
,
C
h
e
o
l
-
W
o
o
n
g
Y
a
n
g
Korean J. Met. Mater.
2019;57(7):405-411. Published online 2019 Jun 5
DOI:
https://doi.org/10.3365/KJMM.2019.57.7.405
Abstract
This paper discusses a molybdenum-added alloy design for normalized pressure vessel steels, to reduce hydrogen induced cracking (HIC) and inhibit crack propagation. The change in microstructure produced by the modified alloy composition was analyzed to determine its effect on HIC characteristics. The microstructural change was observed by optical microscopy, hardness.....
More
Web of Science 5
Crossref 5
I
n
f
l
u
e
n
c
e
o
f
B
o
r
o
n
a
n
d
M
a
n
g
a
n
e
s
e
o
n
H
o
t
C
r
a
c
k
R
e
s
i
s
t
a
n
c
e
a
n
d
L
o
w
T
e
m
p
e
r
a
t
u
r
e
T
o
u
g
h
n
e
s
s
o
f
F
l
u
x
C
o
r
e
d
A
r
c
W
e
l
d
M
e
t
a
l
f
o
r
H
i
g
h
S
t
r
e
n
g
t
h
C
a
r
b
o
n
S
t
e
e
l
s
고강도 탄소강 FCA 용착금속의 고온균열 저항성과 저온 충격인성에 미치는 보론과 망간의 영향
S
u
-
K
i
l
P
a
r
k
,
Y
o
u
n
g
-
H
o
C
h
o
,
C
h
u
n
-
H
o
J
e
e
,
J
u
n
g
h
o
o
n
L
e
e
,
S
e
o
n
g
-
M
o
o
n
S
e
o
,
N
a
m
h
y
u
n
K
a
n
g
박수길, 조영호, 지춘호, 이정훈, 서성문, 강남현
Korean J. Met. Mater.
2019;57(1):28-37. Published online 2018 Dec 14
DOI:
https://doi.org/10.3365/KJMM.2019.57.1.28
Abstract
The hot crack resistance and mechanical properties of flux cored arc (FCA) welds were investigated with three kinds of welding consumables having different boron (B) and manganese (Mn) contents for high strength carbon steel. The hot crack resistance, measured from self-restraint testing, strongly depended on the amount of B in.....
More
Web of Science 3
Crossref 3
E
f
f
e
c
t
o
f
M
i
c
r
o
s
t
r
u
c
t
u
r
a
l
F
a
c
t
o
r
s
o
n
F
a
t
i
g
u
e
a
n
d
F
a
t
i
g
u
e
C
r
a
c
k
P
r
o
p
a
g
a
t
i
o
n
B
e
h
a
v
i
o
r
s
o
f
M
i
l
l
-
A
n
n
e
a
l
e
d
T
i
-
6
A
l
-
4
V
A
l
l
o
y
미세조직적 인자가 밀소둔된 Ti-6Al-4V 합금의 피로 및 피로균열전파 거동에 미치는 영향
S
a
n
g
h
o
o
P
a
r
k
,
S
u
m
i
n
K
i
m
,
D
a
e
u
n
L
e
e
,
S
o
o
j
i
n
A
h
n
,
S
a
n
g
s
h
i
k
K
i
m
박상후, 김수민, 이다은, 안수진, 김상식
Korean J. Met. Mater.
2018;56(12):845-853. Published online 2018 Dec 5
DOI:
https://doi.org/10.3365/KJMM.2018.56.12.845
Abstract
To understand the effect of microstructural factors (i.e., the size of α phase, equiaxed vs bimodal structure) on high cycle fatigue (HCF) and fatigue crack propagation (FCP) behaviors of mill-annealed Ti-6Al- 4V (Ti64) alloy, three specimens of EQ (equiaxed)–8 (8 indicates the size of α grain), BM (bimodal)-8, and BM-.....
More
Crossref 5
R
e
s
i
s
t
a
n
c
e
t
o
S
t
r
e
s
s
C
o
r
r
o
s
i
o
n
C
r
a
c
k
i
n
g
o
f
H
i
g
h
-
S
t
r
e
n
g
t
h
7
x
x
x
S
e
r
i
e
s
A
l
u
m
i
n
u
m
A
l
l
o
y
s
i
n
3
.
5
%
N
a
C
l
S
o
l
u
t
i
o
n
항공용 고강도 7xxx계 알루미늄 합금의 3.5% NaCl 수용액에서의 응력부식균열 저항성
Y
u
r
i
m
L
e
e
,
H
e
e
s
o
o
C
h
o
i
,
S
o
o
j
i
n
A
h
n
,
C
h
e
o
l
j
o
o
L
e
e
,
S
a
n
g
s
h
i
k
K
i
m
이유림, 최희수, 안수진, 이철주, 김상식
Korean J. Met. Mater.
2018;56(10):708-717. Published online 2018 Oct 5
DOI:
https://doi.org/10.3365/KJMM.2018.56.10.708
Abstract
For proper maintenance and inspection scheduling of aircraft, it is extremely important to measure the resistance to stress corrosion cracking (SCC) behavior of aluminum alloys used for aircraft structures. The SCC resistances of high-strength 7xxx-series aluminum alloys, including 7050-T7451, 7475-T7351 and 7140-T7451, were evaluated along longitudinal (L) and transverse (T).....
More
Crossref 3
E
v
a
l
u
a
t
i
o
n
o
n
R
e
h
e
a
t
C
r
a
c
k
i
n
g
o
f
M
u
l
t
i
-
p
a
s
s
W
e
l
d
M
e
t
a
l
o
f
Y
P
6
9
0
Q
T
S
t
e
e
l
해양플랜트용 YP 690 MPa급강 다층 용접부의 재열 균열 특성 평가
Y
o
n
g
T
a
e
k
S
h
i
n
,
Y
o
u
n
g
J
u
J
o
신용택, 조영주
Korean J. Met. Mater.
2018;56(8):580-588. Published online 2018 Aug 5
DOI:
https://doi.org/10.3365/KJMM.2018.56.8.580
Abstract
This study evaluated the relationship between reheat cracking that occurs in the reheated weld zone formed by subsequent multi-pass welding and the preheat/interpass temperature. The multi-pass weldment was YP 690 MPa high-strength steel, which is used in mobile offshore platform units. The welding process was flux-cored arc welding (FCAW), which.....
More
H
y
d
r
o
g
e
n
I
n
d
u
c
e
d
C
r
a
c
k
P
r
o
p
a
g
a
t
i
o
n
i
n
B
a
i
n
i
t
i
c
X
7
0
S
t
e
e
l
i
n
H
y
d
r
o
g
e
n
P
r
e
s
s
u
r
e
d
T
e
n
s
i
l
e
T
e
s
t
베이나이트계 X70강 수소가압분위기 인장시험의 수소취성균열 전파
B
y
u
n
g
H
a
k
C
h
o
e
,
H
y
e
o
n
S
u
J
a
n
g
,
B
u
m
G
y
u
L
e
e
,
E
u
i
S
o
o
K
i
m
,
W
o
o
S
i
k
K
i
m
,
U
n
B
o
n
g
B
a
e
k
,
S
u
n
g
H
o
o
n
N
a
m
최병학, 장현수, 이범규, 김의수, 김우식, 백운봉, 남승훈
Korean J. Met. Mater.
2018;56(1):1-7. Published online 2018 Jan 1
DOI:
https://doi.org/10.3365/KJMM.2018.56.1.1
Abstract
This study investigated hydrogen induced cracking (HIC) of X70 steel, used for gas pipeline material, with a bainitic microstructure. The effect of hydrogen on the steel was investigated by tensiletesting in a high pressure hydrogen atmosphere, using OM, SEM and TEM analyses. The mechanisms of hydrogen-related cracking were represented as.....
More
Crossref 6
E
n
h
a
n
c
e
d
R
e
s
i
s
t
a
n
c
e
t
o
D
e
l
a
y
e
d
C
r
a
c
k
i
n
g
i
n
D
e
e
p
-
d
r
a
w
n
L
e
a
n
D
u
p
l
e
x
S
t
a
i
n
l
e
s
s
S
t
e
e
l
:
t
h
e
R
o
l
e
o
f
R
e
s
i
d
u
a
l
S
t
r
e
s
s
S
e
o
k
H
w
a
n
J
u
n
g
,
T
a
e
k
y
u
n
g
L
e
e
,
S
e
o
k
W
e
o
n
S
o
n
g
,
Y
o
u
n
g
J
i
n
K
w
o
n
,
H
y
u
n
g
-
G
u
K
a
n
g
,
D
o
n
g
c
h
u
l
C
h
a
e
,
C
h
o
n
g
S
o
o
L
e
e
Korean J. Met. Mater.
2017;55(8):544-549. Published online 2017 Aug 1
DOI:
https://doi.org/10.3365/KJMM.2017.55.8.544
Abstract
The delayed cracking behavior of deep-drawn lean duplex stainless steel (LDSS) was investigated, and compared with that of conventional metastable austenitic stainless steels (MASS). Hydrogen charging was performed by electrochemical method, and the hydrogen-charged specimens were subjected to the slow-strain-rate test. Fractures occurred along the phase boundaries in the LDSS,.....
More
Crossref 2
E
f
f
e
c
t
o
f
M
i
c
r
o
s
t
r
u
c
t
u
r
e
o
n
H
I
C
S
u
s
c
e
p
t
i
b
i
l
i
t
y
o
f
A
P
I
X
7
0
M
S
L
i
n
e
p
i
p
e
S
t
e
e
l
API X70MS 라인파이프용 강의 수소유기균열 감수성에 미치는 미세조직의 영향
J
o
o
n
-
H
o
S
u
n
g
,
H
o
-
S
e
o
p
S
i
m
,
B
y
u
n
g
-
G
y
u
P
a
r
k
,
K
y
u
n
g
-
M
o
x
C
h
o
성준호, 심호섭, 박병규, 조경목
Korean J. Met. Mater.
2017;55(6):379-385. Published online 2017 Jun 1
DOI:
https://doi.org/10.3365/KJMM.2017.55.6.379
Abstract
The resistance of hydrogen induced cracking (HIC) was investigated with different microstructures of API X70MS steel. Ferrite/acicular ferrite (F/AF), deformed ferrite/acicular ferrite, ferrite/bainite (F/B) and single acicular ferrite (AF) were obtained by thermo-mechanical controlled process (TMCP) with changing rolling and cooling conditions. HIC resistance was found to be affected by.....
More
Crossref 1
Casting/Solidification/Heat Treatment
S
t
u
d
y
o
n
t
h
e
S
u
r
f
a
c
e
M
i
c
r
o
s
t
r
u
c
t
u
r
e
o
f
a
M
o
d
i
f
i
e
d
S
T
D
6
1
S
t
e
e
l
M
o
l
d
U
s
e
d
f
o
r
t
h
e
D
i
e
C
a
s
t
i
n
g
P
r
o
c
e
s
s
다이캐스팅 공정에 사용된 개량형 STD61 열간 금형 표면의 미세조직에 관한 연구
H
a
-
Y
o
u
n
g
Y
u
,
S
e
u
n
g
-
J
o
o
n
L
e
e
,
M
i
n
w
o
o
K
a
n
g
,
S
u
k
-
J
i
n
L
e
e
,
W
o
n
J
o
n
Y
a
n
g
,
J
a
e
S
u
k
J
e
o
n
g
,
B
y
u
n
g
-
H
o
o
n
K
i
m
,
Y
o
u
n
g
-
K
o
o
k
L
e
e
유하영, 이승준, 강민우, 이석진, 양원존, 정재석, 김병훈, 이영국
Korean J. Met. Mater.
2016;54(9):672-680. Published online 2016 Sep 5
DOI:
https://doi.org/10.3365/KJMM.2016.54.9.672
Abstract
The surface microstructure and crack formation of an aluminum die-casting mold were investigated. The mold was made of a modified STD61 steel, and was used for more than 165,000 cycles. The mold surface consisted of four layers; an oxidized layer, a decarburized layer, a network carbide layer and a tempered...
More
1
|
Journal Impact Factor 1.2
> Browse Articles > Search
