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Korean J. Met. Mater.
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저자 색인
Author Index
Volume 58(10); Oct 2020
Research Papers
653
Hydrogen Induced Cracks in Stainless Steel 304 in Hydrogen Pressure and Stress Corrosive Atmosphere
수소가압 및 응력부식 분위기에서 스테인레스강 SS304의 수소취성균열
Byung Hak Choe, Sang Woo Lee, Jong Kee Ahn, Jinhee Lee, Tae Woon Lim최병학, 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
660
Effect of Ni, C and Ti Addition on Shape Recovery Behavior and the Mechanical Properties of Fe-17Mn-5Si-5Cr Shape Memory Alloys
Fe-17Mn-5Si-5Cr 형상기억합금의 형상복원거동 및 기계적 특성에 미치는 Ni, Ti 및 C의 영향
Dohyoung Kim, Yonghwan Kim, Jeong-Jung Oak, Junghoon Lee, Chan Hee Park, Wookjin Lee, Yongho Park김도형, 김용환, 옥정중, 이정훈, 박찬희, 이욱진, 박용호
Korean J. Met. Mater.
2020;58(10):660-671. Published online 2020 Oct 5
DOI:
https://doi.org/10.3365/KJMM.2020.58.10.660
Abstract
Fe-Mn-Si based shape memory alloy is a new functional material that can be used to apply prestress to civil and structural components such as concrete structures. In this study, the effects of alloying elements Ni, C and Ti on the mechanical and shape memory properties of the alloy were investigated.....
More
Web of Science 7
Crossref 7
672
Effect of β Phase Decomposition on Recrystallization in α-Zr Region in Zr-2.5%Nb Pressure Tube Material
Zr-2.5%Nb 압력관 재료에서
α
-Zr 영역에서의 소둔에 의한
β
-상 분해가 재결정에 미치는 영향
SungSoo Kim, Sang Yup Lim, Gyeong-Geun Lee김성수, 임상엽, 이경근
Korean J. Met. Mater.
2020;58(10):672-679. Published online 2020 Oct 5
DOI:
https://doi.org/10.3365/KJMM.2020.58.10.672
Abstract
The effects of β phase decomposition on recrystallization and texture variation in Zr-2.5% Nb alloy pressure tube material were investigated. Isothermal annealing was conducted at 350 to 550
o
C for 240 hours, and isothermal annealing was performed at 500
o
C for 240 to 3,000 hours. The recrystallization and texture variation.....
More
Web of Science 1
Crossref 1
680
Effects of Heat Treatment Condition and Counter Materials on the Wear Behavior of Laser Direct Energy Deposited Fe-8Cr-3V-2Mo-2W Alloy
레이저 직접적층법으로 제조된 Fe-8Cr-3V-2Mo-2W합금의 마모특성에 미치는 열처리공정 및 상대재의 영향
Kyeongsik Ha, Young Keun Park, Taehwan Kim, Gyeong Yun Baek, Jong Bae Jeon, Do-sik Shim, Young Hoon Moon, Wookjin Lee하경식, 박영근, 김태환, 백경윤, 전종배, 심도식, 문영훈, 이욱진
Korean J. Met. Mater.
2020;58(10):680-692. Published online 2020 Oct 5
DOI:
https://doi.org/10.3365/KJMM.2020.58.10.680
Abstract
This study aimed to investigate the wear performance of laser direct energy deposited Fe-8Cr3V-2Mo-2W alloy under various wear environments, in terms of different heat treatment conditions. Ball on disk tribology tests were performed using high-carbon steel and zirconia balls as counter materials. The wear rates of the alloy depended significantly.....
More
Web of Science 8
Crossref 10
693
Integrity Assessment of Obsolete Thermal Storage Tank in District Heating System
지역난방 노후 축열조의 부식 건전성 평가 및 고찰
Daeho Yun, Hobyung Chae, Heesan Kim, Jung-Gu Kim, Woo Cheol Kim, Tae Baek Ha, Jaehyuk Jang, Joon Cheol Jeong, Soo Yeol Lee윤대호, 채호병, 김희산, 김정구, 김우철, 하태백, 장재혁, 정준철, 이수열
Korean J. Met. Mater.
2020;58(10):693-702. Published online 2020 Oct 5
DOI:
https://doi.org/10.3365/KJMM.2020.58.10.693
Abstract
The thermal storage tank in a district heating system is a component that stores excess heat during normal operation and releases the stored heat to increase the efficiency of the system, when the heat source is stopped or additional demands occur. Recently, an obsolete thermal storage tank was dismantled for.....
More
703
Effects of Initial Precipitate on Shear Deformation during Asymmetric Rolling of Al-Mg-Si Alloy: Texture and Formability
Al-Mg-Si 합금의 초기 석출물이 비대칭 압연에 의한 전단변형에 미치는 영향 : 집합조직과 성형성
Wonkee Chae, Bong-Kyu Kim, Jongbeom Lee, Jun Hyun Han채원기, 김봉규, 이종범, 한준현
Korean J. Met. Mater.
2020;58(10):703-714. Published online 2020 Oct 5
DOI:
https://doi.org/10.3365/KJMM.2020.58.10.703
Abstract
Al-Mg-Si alloy was rolled asymmetrically at several temperatures to apply shear deformation, and the effects of the initial precipitate on shear deformation, texture evolution, formability, and plastic anisotropy were studied. Texture was analyzed using a EBSD, and the formability and plastic anisotropy of the specimen were evaluated using the value.....
More
Web of Science 7
Crossref 8
715
Deposition of Low-Resistivity Aluminum Thin Films Via Application of Substrate Bias During Magnetron Sputtering
기판 바이어스와 스퍼터 압력 조절을 통한 저저항 알루미늄 박막 형성 연구
Dooho Choi최두호
Korean J. Met. Mater.
2020;58(10):715-720. Published online 2020 Oct 5
DOI:
https://doi.org/10.3365/KJMM.2020.58.10.715
Abstract
In this study, the critical role of substrate bias during the sputter deposition of Al thin films is discussed. Two sets of Al thin films having a nominal thickness of 300 nm were deposited at sputtering pressures of 4.1 and 1.5 mTorr, respectively, with an applied negative substrate bias in.....
More
Crossref 1
721
Influence of Te Vacancies on the Thermoelectric Properties of
n
-type Cu
0.008
Bi
2
Te
2.7-x
Se
0.3
n
-type Cu
0.008
Bi
2
Te
2.7-x
Se
0.3
열전 합금에서 Te 공공 형성에 의한 열전 성능 연구
Yerim Yang, TaeWan Kim, Seokown Hong, Jiwoo An, Sang-il Kim양예림, 김태완, 홍석원, 안지우, 김상일
Korean J. Met. Mater.
2020;58(10):721-727. Published online 2020 Oct 5
DOI:
https://doi.org/10.3365/KJMM.2020.58.10.721
Abstract
In this study, we report the influence of Te vacancy formation on the thermoelectric properties of
n
-type Cu
0.008
Bi
2
Te
2.7
Se
0.3
alloys, including their electronic and thermal transport properties. Te-deficient Cu
0.008
Bi
2
Te
2.7-x
Se
0.3
(
x
= 0, 0.005, 0.01 and 0.02) samples were systematically synthesized and characterized. Regarding electronic transport properties, carrier concentration was increased with.....
More
Web of Science 4
Crossref 5
728
KIST-NOMAD - a Repository to Manage Large Amounts of Computational Materials Science Data
Samuel Boateng, Kwang Ryeol Lee, Deepika , Haneol Cho, Kyu Hwan Lee, Chansoo Kim
Korean J. Met. Mater.
2020;58(10):728-739. Published online 2020 Oct 5
DOI:
https://doi.org/10.3365/KJMM.2020.58.10.728
Abstract
We introduce the Korea Institute of Science and Technology-Novel Materials Discovery (KISTNOMAD) platform, a materials data repository. We describe its functionality and novel features from an academic viewpoint. It is a data repository designed for computational material science, especially focusing on managing and sharing the results of molecular dynamics simulation.....
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Web of Science 2
Crossref 1
Journal Impact Factor 1.2