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Tensile and Compressive Deformation Behaviors of High-Strength Cu Bulk Material Manufactured by Cold Spray
저온 분사 공정으로 제조된 초고강도 Cu 벌크 소재의 인장 및 압축 변형 거동
Young-Kyun Kim, Kee-Ahn Lee
김영균, 이기안
Korean J. Met. Mater. 2020;58(11):759-767.   Published online 2020 Oct 15
DOI: https://doi.org/10.3365/KJMM.2020.58.11.759

In this study, high-strength pure Cu bulk material was manufactured using a cold spray additive manufacturing process, and its microstructure, tensile and compressive deformation behaviors were investigated and compared. The cold spray additive manufactured Cu bulk material showed a heterogeneous grain structure consisting of fine-grains and coarse-grains, and only α..... More

Effect of Carrier Gas on Microstructure and Macroscopic Properties of Tantalum Coating Layer Manufactured by Kinetic Spray Process
Kinetic spray 공정으로 제조된 탄탈럼 코팅층의 미세조직 및 물성에 미치는 송급 가스의 영향
Ga-Ryung Kim, Young-Kyun Kim, Hyung-Jun Kim, Kee-Ahn Lee
김가령, 김영균, 김형준, 이기안
Korean J. Met. Mater. 2018;56(5):360-365.   Published online 2018 May 8
DOI: https://doi.org/10.3365/KJMM.2018.56.5.360

This study attempted to utilizing the kinetic spray process to manufacture tantalum coating layer and investigated the effect of carrier gas on the microstructure and macroscopic properties of the coating layer. The initial powder feed stock was a massive powder with an average particle size of 24.35 μm and 99.99%..... More

         Cited By 1
Microstructure and Mechanical Properties of 17-4PH Steel and Fe-Cr-B Alloy Mixed Material Manufactured Using Powder Injection Molding
Powder Injection Molding 공정으로 제조된 17-4PH 강과 Fe-Cr-B 합금 복합 소재의 미세조직 및 기계적 특성
Yeun-Ah Joo, Young-Kyun Kim, Tae-Sik Yoon, Kee-Ahn Lee
주연아, 김영균, 윤태식, 이기안
Korean J. Met. Mater. 2018;56(5):342-349.   Published online 2018 May 8
DOI: https://doi.org/10.3365/KJMM.2018.56.5.342

This study investigated the microstructure and mechanical properties of 17-4PH precipitation hardened martensite stainless steel and Fe-Cr-B based alloy mixed material manufactured using powder injection molding. 17-4PH stainless steel powder was mixed with 5 wt%, 10 wt% and 20 wt% Fe-Cr-B based alloy (M alloy) powder to manufacture three different..... More

         Cited By 2
Effect of Hot Isostatic Pressing on the Microstructure and Room·High Temperature Tensile Properties of Fe-Cr-Ni based HK30 Alloy Manufactured by Metal Injection Molding Process
Metal Injection Molding 공정으로 제조된 Fe-Cr-Ni계 HK30 합금의 미세조직 및 상·고온 인장 특성에 미치는 열간 등압 성형의 영향
Young-Kyun Kim, Tae-Sik Yoon, Kee-Ahn Lee
김영균, 윤태식, 이기안
Korean J. Met. Mater. 2018;56(2):121-129.   Published online 2018 Feb 5
DOI: https://doi.org/10.3365/KJMM.2018.56.2.121

This study manufactured Fe-Cr-Ni-based alloy (HK30) using the metal injection molding (MIM) process and investigated the microstructure and room·high temperature mechanical properties of the material. The effect of hot isostatic pressing (HIP) on properties was also examined. The average grain sizes were 24.1 µm for an MIM specimen and 29.1..... More

Effect of Heat-Treatment on the Elevated Temperature Compression and Compressive Creep Properties of Fe-14Cr Ferritic Oxide Dispersion Strengthened (ODS) Steel
Fe-14Cr계 페라이틱 산화물 분산 강화강의 고온 압축 및 크리프 특성에 미치는 열처리의 영향
Young-Kyun Kim, Yeun-Ah Joo, Jong-Kwan Park, Hwi-Jun Kim, Man-Sik Kong, Kee-Ahn Lee
김영균, 주연아, 박종관, 김휘준, 공만식, 이기안
Korean J. Met. Mater. 2017;55(12):862-869.   Published online 2017 Dec 4
DOI: https://doi.org/10.3365/KJMM.2017.55.12.862

This study investigated the microstructure and the ambient-elevated temperature compression and elevated temperature creep properties of Fe-14Cr ferritic ODS steel manufactured by mechanical alloying (high energy ball milling) and hot extrusion processes. Initial microstructural observation of the as-extruded material identified elongated grains in the direction of extrusion; however, some recrystallization..... More

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