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방전플라즈마 소결법으로 제조된 탄소나노튜브 강화 SKD11 금형강의 분말소결 특성
문제세,정성실,이대열,정영근,강명창,박춘달,윤국태,Moon, Je-Se,Jung, Sung-Sil,Lee, Dae-Yeol,Jeong, Young-Keun,Kang, Myung Chang,Park, Chun-Dal,Youn, Kook-Tae 한국분말야금학회 2015 한국분말재료학회지 (KPMI) Vol.22 No.3
SKD11(ASTM D2) tool steel is a versatile high-carbon, high-chromium, air-hardening tool steel that is characterized by a relatively high attainable hardness and numerous, large, chromium rich alloy carbide in the microstructure. SKD11 tool steel provides an effective combination of wear resistance and toughness, tool performance, price, and a wide variety of product forms. Adding of CNTs increased the performance of mechanical properties more. 1, 3 vol.% CNTs was dispersed in SKD11 matrix by mechanical alloying. SKD11 carbon nanocomposite powder was sintered by spark plasma sintering process. FE-SEM, HR-TEM and Raman analysis were carried out SKD11 carbon nanocomposites.
탄소나노튜브 강화 SKD11 냉간금형용 하이브리드 탄소나노소결체 제조 및 특성 평가
정성실,문제세,이대열,윤국태,박춘달,송재선,Jung, Sung-Sil,Moon, Je-Se,Lee, Dae-Yeol,Youn, Kuk-Tae,Park, Chun-Dal,Song, Jae-Sun 한국분말야금학회 2013 한국분말재료학회지 (KPMI) Vol.20 No.4
SKD11 (ASTM D2) tool steel is a versatile high-carbon, high-chromium, air-hardening tool steel that is characterized by a relatively high attainable hardness and numerous, large, chromium rich alloy carbide in the microstructure. SKD11 tool steel provides an effective combination of wear resistance and toughness, tool performance, price, and a wide variety of product forms. The CNTs was good additives to improve the mechanical properties of metal. In this study, 1, 3 vol% CNTs was dispersed in SKD11 matrix by mechanical alloying. The SKD11+ CNT hybrid nanocomposites were investigated by FE-SEM, particle size distribution, hardness and wear resistance. The CNT was well dispersed in the SKD11 matrix and the mechanical properties of the composite were improved by CNTs addition. It shows good feasibility as cold work die tool.