| Home | E-Submission/Review | Sitemap | Editorial Office |  
Korean Journal of Metals and Materials Search > Browse Articles > Search

Effect of Nickel Silicide Content on the Friction Properties of Wet Sintered Friction Material
습식 소결 마찰재의 마찰특성에 대한 니켈 실리사이드 함량의 영향
Tae-Hyung Park, Sang-Wook Kim, Jong-Kyun Kim, Soong-Keun Hyun
박태형, 김상욱, 김종균, 현승균
Korean J. Met. Mater. 2022;60(2):95-101.   Published online 2022 Jan 12
DOI: https://doi.org/10.3365/KJMM.2022.60.2.95

The effect of nickel silicide on the friction properties of Cu-based wet sintered friction materials was investigated. The microstructure and mechanical properties of nickel silicide added Cu-based wet sintered friction materials were examined. Nickel silicide was prepared by mechanically alloying Ni and Si powder. Three types of Cu-based wet sintered..... More

Sintering Behavior and Hardness of Tungsten Prepared by Hard Metal Sludge Recycling Process without Ammonium Paratungstate
텅스텐산암모늄 단계 생략 초경합금 슬러지 재활용 공정에 의해 제조된 텅스텐의 소결 및 경도 특성
Hanjung Kwon, Jung-Min Shin
권한중, 신정민
Korean J. Met. Mater. 2022;60(1):53-61.   Published online 2021 Dec 10
DOI: https://doi.org/10.3365/KJMM.2022.60.1.53

In this paper, we suggest a novel recycling process for hard metal sludge that does not use ammonium paratungstate. Ammonia, which in the conventional recycling process is essential for removing sodium and crystallized tungstate, was not used in the novel process. Instead of ammonia, acid was used to remove the..... More

Improvement of Mechanical Properties of Hard Metals Using Solid Solution Strengthened Metallic Binder (Co<sub>1-x</sub>W<sub>x</sub>)
고용 강화 금속 바인더(Co1-xWx) 적용을 통한 초경합금의 기계적 특성 향상
Hanjung Kwon
Korean J. Met. Mater. 2022;60(1):14-25.   Published online 2021 Dec 10
DOI: https://doi.org/10.3365/KJMM.2022.60.1.14

The metallic binder in WC-Co hard metals was effectively strengthened using the solid solution phases of Co and W. These metallic phases of Co and W (Co1-xWx, x<1), which consist of two kinds of structures (FCC and HCP), were successfully formed by hydrogen reduction of milled oxides mixtures (Co3O4 and..... More

Carburizing Behavior of AISI 4115 Steel According to the Flow Rates of Acetylene in Vacuum Carburizing
AISI 4115 강의 진공 침탄 시 아세틸렌 유량에 따른 침탄 거동
Gi-hoon Kwon, Kyoungil Moon, Young-Kook Lee, Minsu Jung
권기훈, 문경일, 이영국, 정민수
Korean J. Met. Mater. 2020;58(9):617-625.   Published online 2020 Aug 13
DOI: https://doi.org/10.3365/KJMM.2020.58.9.617

The vacuum carburizing behavior of AISI 4115 steel according to acetylene flow rates (1, 5, 10, 20, 30, 40, and 50 sccm) and temperatures (900, 950, and 1000 oC) was quantitatively investigated through microstructure, carbon concentration and hardness analyses. As the acetylene flow rate increased, the penetration rate of carbon..... More

Measurement of Intrinsic Hardness of Deposited Chromium Thin Films by Nanoindentation Method and Influencing Factors
나노인덴테이션 방법으로 크롬 박막의 고유경도를 측정하는 방법과 영향 인자
Young-Joon Kang, Ju-Hwan Baeg, Hyun Park, Young-Rae Cho
강영준, 백주환, 박현, 조영래
Korean J. Met. Mater. 2020;58(3):207-215.   Published online 2020 Mar 5
DOI: https://doi.org/10.3365/KJMM.2020.58.3.207

Materials with very small dimensions exhibit different physical and mechanical properties compared to their bulk counterparts. This becomes significantly important for the thin films that are widely used as components in micro-electronics and functional materials. In this study, a chromium (Cr) thin film was deposited on a silicon (Si) wafer..... More

                           Cited By 2
Mechanical Properties and Fabrication of 4YSZ-BN Composites by Pulsed Current Activated Sintering
펄스 전류 활성 소결에 의한 4YSZ-BN 복합재료 제조와 기계적 성질
Woo-Jin Cho, Seong-Eun Kim, Se-Hoon Oh, In-Jin Shon
조우진, 김성은, 오세훈, 손인진
Korean J. Met. Mater. 2019;57(12):764-770.   Published online 2019 Nov 22
DOI: https://doi.org/10.3365/KJMM.2019.57.12.764

4YSZ is generally used in fuel cells, oxygen sensors, hip and knee joint replacements and thermal barriers because of it excellent properties, including low density, high biocompatibility, good resistance against corrosion, hard phase and high melting point, and high ionic conductivity. However, 4YSZ with large grain has low resistance to..... More

                           Cited By 1
Effect of In-Situ Post Heating on Repairing STS316L Built by Laser Powder Bed Fusion Using Direct Energy Deposition
레이저로 적층 제조된 STS316L에 대한 직접에너지적층 응용 보수 시 공정 중 후열처리(In-Situ Post Heating) 효과
Wook Jin Oh, Yong Son, Do Sik Shim
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

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

                           Cited By 3
Characterization of the Laser Surface Nitriding of Ti-6Al-4V Alloys in Nitric Acid Solution and Nitrogen Gas Atmosphere
질산용액 및 질소가스 분위기에서 Ti-6Al-4V 합금의 레이저 표면질화 특성분석
Tae-woo Hwang, Sang-wook Han, Il-yeong Oh, Young-hoon Moon
황태우, 한상욱, 오일영, 문영훈
Korean J. Met. Mater. 2019;57(7):412-421.   Published online 2019 Jun 5
DOI: https://doi.org/10.3365/KJMM.2019.57.7.412

Laser nitriding is a surface engineering technique that is being used on titanium alloys to improve their surface hardness and wear resistance. It is an attractive process because of its simplicity and the possibility of producing hard layers of substantial depth with minimum effect to the bulk of the material...... More

                           Cited By 2
Property Evaluation of Binderless-WC Hard Materials as a Function of Sintering Temperature
소결온도 변화에 따른 Binderless-WC 소결체 특성평가
Hyun-Kuk Park, Jeong-Han Lee, Jun-Ho Jang, Ik-Hyun Oh
박현국, 이정한, 장준호, 오익현
Korean J. Met. Mater. 2019;57(5):304-309.   Published online 2019 Apr 10
DOI: https://doi.org/10.3365/KJMM.2019.57.5.304

In this study, Binderless-WC hard materials were fabricated using the pulsed current activated sintering (PCAS) process for a Friction Stir Welding tool and difficult-to-cut tool application. Tungsten carbide (WC) hard materials are used in various industries and possess a superior hardness compared to other hard materials. They have particularly high..... More

                           Cited By 4
Comparison of Microstructure and Residual Stress Affecting Stress Corrosion Cracking Susceptibility of Austenitic Stainless Steel Tubes
오스테나이트 스테인리스강 튜브의 응력부식균열 민감도에 영향을 미치는 미세조직 및 잔류응력 비교
Ho Jung Lee, Seungjin Oh, Hongdeok Kim
이호중, 오승진, 김홍덕
Korean J. Met. Mater. 2019;57(1):51-59.   Published online 2018 Dec 14
DOI: https://doi.org/10.3365/KJMM.2019.57.1.51

Three 304L austenitic stainless steel feedwater heater (FWH) tubes used in pressurized water reactors (PWRs) were investigated in this study. By comparing metallurgical differences, such as microstructural features, micro-hardness, and circumferential residual stress of the failed and non-failed FWH tubes by stress corrosion cracking (SCC), factors which could affect SCC..... More

                           Cited By 4
Effect of BN Addition on the Mechanical Properties of TiN-BN Composites
Woo-Jin Cho, In-Jin Shon
Korean J. Met. Mater. 2018;56(9):658-663.   Published online 2018 Sep 5
DOI: https://doi.org/10.3365/KJMM.2018.56.9.658

Titanium nitride (TiN) has been used extensively in coating materials and cutting tools because of its attractive properties, which include low density, high melting point, high hardness and thermodynamic stability. However, like many ceramic materials, its low fracture toughness limits wide industrial application. The methods generally utilized to improve its..... More

                           Cited By 14
A Study on Micro-Structure and Wear Behavior of AISI M4 and CPM15V Deposited by Laser Melting
레이저 용융 적층 기술을 이용한 AISI M4와 CPM15V 분말 적층부의 미세 조직 및 마모 특성에 관한 연구
Gyeong Yun Baek, Gwang Yong Shin, Ki Yong Lee, Do Sik Shim
백경윤, 신광용, 이기용, 심도식
Korean J. Met. Mater. 2018;56(6):430-439.   Published online 2018 Jun 4
DOI: https://doi.org/10.3365/KJMM.2018.56.6.430

AISI M4 and CPM15V are used as tool steels since they have high hardness and wear resistance. This study is concerned with die and mold hardfacing using laser melting deposition with M4 and CPM15V powders. For this purpose, the two types of metal powders were deposited on SKD11 base metal,..... More

                           Cited By 3
Microstructure and Room Temperature Wear Properties of a Ni-Cr-B-Si-C Coating Layer Manufactured by the Laser Cladding Process
Laser Cladding 공정으로 제조된 Ni-Cr-B-Si-C 코팅층의 미세조직 및 상온 마모 특성
Tae-Hoon Kang, Kyu-Sik Kim, Soon-Hong Park, Kee-Ahn Lee
강태훈, 김규식, 박순홍, 이기안
Korean J. Met. Mater. 2018;56(6):423-429.   Published online 2018 Jun 4
DOI: https://doi.org/10.3365/KJMM.2018.56.6.423

A Ni-Cr-B-Si-C coating layer was manufactured on a plate of Fe base alloy using a laser cladding process, and the microstructural and mechanical properties of the laser cladded coating layer and a Ni electroplating layer (used as a reference material) were investigated. To identify the microstructural and mechanical properties, scanning..... More

                           Cited By 5
Growth Rate of Gamma Prime Precipitates in Ni-Base Superalloy
니켈기 초내열합금의 감마프라임상의 성장거동
Junhyeob Oh, Daeyoung Jo, Hongkyu Kim, Jondo Yun
오준협, 조대영, 김홍규, 윤존도
Korean J. Met. Mater. 2018;56(1):8-13.   Published online 2018 Jan 1
DOI: https://doi.org/10.3365/KJMM.2018.56.1.8

The mechanical properties of nickel-base superalloys used in disk and blade materials for gas turbine engines can be maximized by controlling their microstructure, such as the size of precipitates. In this study, we investigated the size of gamma prime precipitates after age hardening heat treatment at 650-980 oC for 1-48..... More

         Cited By 2
Effect of Aluminum Welding Wire Mg Content on the Mechanical Properties of Al 5083 Alloy Weld Metal
Al 5083 합금 용접부의 기계적 물성에 미치는 Mg의 영향
Dongyoon Kim, Dongcheol Kim, Munjin Kang, Young-Min Kim
김동윤, 김동철, 강문진, 김영민
Korean J. Met. Mater. 2017;55(10):716-723.   Published online 2017 Sep 28
DOI: https://doi.org/10.3365/KJMM.2017.55.10.716

A new aluminum welding wire with 0.8 wt% higher in Mg content was developed and compared with commercial welding wire of the 5000 series. The weldability of the Al5083 base material was evaluated using high current metal inert gas (MIG) welding, using the developed Al5183 and commercial Al5183 welding wire...... More

Effects of Nitrogen Content on the HAZ Softening of Ti-Containing High Strength Steels Manufactured by Accelerated Cooling
Ti 첨가 가속냉각형 고장력강의 용접열영향부 연화에 미치는 질소함량의 영향
Kook-soo Bang, Ho-shin Jung, Chan Park
방국수, 정호신, 박찬
Korean J. Met. Mater. 2017;55(3):191-197.   Published online 2017 Mar 3
DOI: https://doi.org/10.3365/KJMM.2017.55.3.191

The effects of nitrogen content on the HAZ softening of Ti-containing high strength steels manufactured by accelerating cooling were investigated and interpreted in terms of the microstructures in the softening zone. Regardless of their content, all of the steels investigated showed a softened zone 9-10 mm wide. The minimum hardness..... More

The Effect of Al and V on Microstructure and Transformation of Phase during Solution Treatments of Cast Ti-6Al-4V Alloy
Seong-Tak Oh, Kee-Do Woo, Jae-Hwang Kim, Seung-Mi Kwak
Korean J. Met. Mater. 2017;55(3):150-155.   Published online 2017 Mar 3
DOI: https://doi.org/10.3365/KJMM.2017.55.3.150

In this study, the effect of α and β those stabilizers on the microstructure and phase transformation of cast Ti-6wt%Al-4wt%V alloy at various solution treatment temperatures was investigated. The dependence of the transformation behavior of the β phase during the solution treatment and its dependence was determined by the partitioning..... More

Plastic Working & Materials Processing
The Effect of Mixed Slurry of Fe and Graphite on the Characteristics of Laser Carburized Surface
레이저 침탄공정시 철과 흑연의 혼합 슬러리가 침탄특성에 미치는 효과
Won-Jong Ji, Seong-Hoon Lee, Young-Hoon Moon
지원종, 이성훈, 문영훈
Korean J. Met. Mater. 2017;55(1):16-23.   Published online 2017 Jan 5
DOI: https://doi.org/10.3365/KJMM.2017.55.1.16

Laser surface carburizing can be achieved by a laser alloying mechanism, which includes melting the graphite coated substrate and dissolution of the graphite in the liquid state. The drawback of laser carburizing is that process-induced cracks frequently form on the carburized surface as a result of carbon enrichment and the..... More

         Cited By 3
Effect of Second Aging Treatment on the Microstructure and Mechanical Properties of SUH660 Alloy
SUH660합금의 미세조직 및 기계적 특성에 미치는 2차 시효 열처리의 영향
Do-Hoon Kim, You-Hwan Lee, Jeoung Han Kim
김도훈, 이유환, 김정한
Korean J. Met. Mater. 2016;54(10):716-722.   Published online 2016 Oct 5
DOI: https://doi.org/10.3365/KJMM.2016.54.10.716

nSUH660 is a precipitation hardening stainless steel which has high strength at moderately high temperature. In this study, the effect of a secondary aging-treatment after the standard 720 °C heat-treatment was investigated. The Rockwell C hardness test with detailed TEM observerations was performed to study the steel’s hardening mechanism. The..... More

         Cited By 3
Mechanical Behavior
Effect of Alloying Elements on the Low-Cycle Fatigue Properties of Al-Si-Mg-(Cu) Alloys for the Cylinder Head of a Passenger Diesel Engine
승용디젤엔진 실린더 헤드용 Al-Si-Mg-(Cu) 합금의 저주기 피로 특성에 미치는 첨가원소 효과
Bo-Ra Jin, Chang-Yeol Jeong
진보라, 정창열
Korean J. Met. Mater. 2016;54(9):626-636.   Published online 2016 Sep 5
DOI: https://doi.org/10.3365/KJMM.2016.54.9.626

To improve automobile fuel efficiency and reduce emissions, there has been a growing demand for more durable alloys for engine components with improved high temperature fatigue resistance. This study examined the effect of alloying elements on the high temperature mechanical behavior of Al-Si-Mg-(Cu) casting alloys for diesel cylinder heads. Depending..... More

         Cited By 3
Casting/Solidification/Heat Treatment
Microstructure and Mechanical Properties of Inconel 625 Alloy on Low Carbon Steel by Heat Treatment after Overlay Welding
저합금강의 인코넬 625 육성용접 후 열처리에 따른 미세조직 및 기계적 특성
Seungpil Kim, Jaeho Jang, Jungsoo Kim, Byung Jun Kim, Keun Yong Sohn, Dae-Geun Nam
김승필, 장재호, 김정수, 김병준, 손근용, 남대근
Korean J. Met. Mater. 2016;54(8):585-591.   Published online 2016 Aug 5
DOI: https://doi.org/10.3365/KJMM.2016.54.8.585
Overlay welding technique is one of methods used to improve metal mechanical properties such as strength, toughness and corrosion resistance. Generally, Inconel 625 alloy is used for overlay welding layer on low carbon steels for economic consideration. However, the method produces some problems in the microstructure of the cast structure... More
         Cited By 1
Powder Metallurgy
Fabrication and Mechanical Properties of Nanostructured TiC-TiAl by the Pulsed Current Activated Sintering
펄스전류 활성 소결에 의한 나노구조 TiC-TiAl 제조 및 기계적 성질
Bong-Won Kwak, Byung-Su Kim, Jin-Kook Yoon, Kyung-Tae Hong, In-Jin Shon
곽봉원, 김병수, 윤진국, 홍경태, 손인진
Korean J. Met. Mater. 2016;54(8):566-572.   Published online 2016 Aug 5
DOI: https://doi.org/10.3365/KJMM.2016.54.8.566

TiC-Co or TiC-Ni hard materials have been used for cutting tools. However, the high cost and the low hardness of Ni or Co, and the low corrosion resistance of the TiC-Ni and TiC-Co cermets have generated interest in recent years in using them as alternative binder phases. In this study,..... More

         Cited By 3
1 |
Email Alert
Author's Index
Impact factor
The Korean Institute of Metals and Materials
SCImago Journal & Country Rank
Similarity Check
Crossref Cited-by Linking
Editorial Office
The Korean Institute of Metals and Materials
6th Fl., Seocho-daero 56-gil 38, Seocho-gu, Seoul 06633, Korea
TEL: +82-2-557-1071   FAX: +82-2-557-1080   E-mail: metal@kim.or.kr
About |  Browse Articles |  Current Issue |  For Authors and Reviewers
Copyright © The Korean Institute of Metals and Materials.                 Developed in M2PI