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Effect of Grain Boundary Morphology on the High Temperature Tensile Properties of Developed Ni-Based Superalloy (LESS)
Ni기 초내열 개발 합금(LESS)의 고온 인장특성에 미치는 결정립계 형상의 영향
Yong Kwan Shin, Byung Il Kang, Jeong IL Youn, Yong Nam Kwon, Young Jig Kim
신용관, 강병일, 윤정일, 권용남, 김영직
Korean J. Met. Mater. 2022;60(12):940-949.   Published online 2022 Nov 25
DOI: https://doi.org/10.3365/KJMM.2022.60.12.940

In order to investigate the mechanical properties of the developed wrought γ'-hardened Ni-based superalloy, LESS alloy (Low Eta Sigma Superalloy), and to understand the deformation behavior, tensile tests were carried out from room temperature to 800oC in comparison with IN 740H alloy. Like other superalloys, the tensile properties of the..... More

                           Cited By 2
Influence of Trace Amounts of Sulfur on the Microstructure and Mechanical Properties of Directionally Solidified Ni-Based Superalloy GTD-111
일방향응고한 GTD-111 초내열합금의 황 함량에 따른 미세조직 및 고온 기계적 특성
Dong-Soo Kang, Hyungsoo Lee, Dae Won Yun, Hi Won Jeong, Young-Soo Yoo, Seong-Moon Seo
강동수, 이형수, 윤대원, 정희원, 유영수, 서성문
Korean J. Met. Mater. 2022;60(10):782-792.   Published online 2022 Sep 29
DOI: https://doi.org/10.3365/KJMM.2022.60.10.782

The influence of trace amounts of sulfur (S) on the microstructural evolution, tensile and creep properties in directionally solidified (DS) Ni-based superalloy GTD-111 were systematically investigated. Doping of S in the range of < 1 to 154 ppm resulted in the formation of a Ti2SC-type carbosulfide phase near the coarse..... More

                           Cited By 1
Effect of Post Heat-Treatment on the Microstructure, Tensile and Fatigue Properties of Al 3003 Alloy Manufactured by Strip Casting Process
Strip Casting 공정으로 제조된 Al 3003 합금의 미세조직, 인장 및 피로 특성에 미치는 후열처리 영향
Min-Seok Baek, Kwangjun Euh, Chang-Yeol Jeong, Kee-Ahn Lee
백민석, 어광준, 정창열, 이기안
Korean J. Met. Mater. 2020;58(3):151-161.   Published online 2020 Mar 5
DOI: https://doi.org/10.3365/KJMM.2020.58.3.151

Al 3003 alloy was manufactured by strip casting process, and the effect of post heat-treatment on tensile and fatigue properties was investigated. The strip cast Al 300 alloy exhibited a unique globular shaped rapid-cooled solidification structure, and the microstructural characteristic remained after heat-treatment. Asstrip cast (F) and heat-treated (O) alloys..... More

                           Cited By 4
Effects of Short Range Ordering on Aging Phenomenon in Zr-2.5%Nb Pressure Tube Material
단 범위 규칙 반응이 Zr-2.5%Nb 압력관 재료의 시효(aging) 현상에 미치는 영향
Sung Soo Kim, Young Suk Kim, Jong Yeob Jung
김성수, 김영석, 정종엽
Korean J. Met. Mater. 2018;56(7):479-489.   Published online 2018 Jul 5
DOI: https://doi.org/10.3365/KJMM.2018.56.7.479

This study was conducted to investigate the effect of aging treatment from 300 °C to 420 °C on the mechanical properties of the pressure tube material at 310 °C, which is outlet temperature pressure tube in CANDU reactor. The short range ordering (SRO) phenomenon during aging process is confirmed by..... More

                           Cited By 3
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 5
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