영문초록
In this study Cu-2.5at%Ni-1at%Si alloys were fabricated by horizontal continuous casting system to improve the electrical conductivity and mechanical properties of Cu-Ni-Si alloy. Withdrawing speed was changed with 50 100 150 and 200 mm/min for the optimum manufacturing condition. Microstructure was observed using OM FE-SEM and TEM. Electrical conductivity was measured by 4-point probe method and mechanical proper-ties were tested. A horizontal continuous cast thin slab had sound macro and micro structures with partly crystal-lized structures. Electrical resistivity decreased with increasing annealing temperature from 250 to 850℃ with increasing annealing temperature the maximum hardness and tensile strength were Hv 130 610 MPa at 550℃ respectively. With changing withdrawing speed from 50 to 150mm/min hardness tensile strength yield strength and elongation were Hv 60-55 210-230 MPa 65-75 MPa and 40-50% respectively. (Received August 9, 2012; Revised September 24, 2012; Accepted October 7, 2012)
추천자료
[역량][함량][정량][측량][계량][개량][경량][수량][질량][용량]역량, 함량, 정량, 측량, 계량, 개량, 경량, 수량, 질량, 용량
[무기화학] 환경과 무기화학 관련성
기계재료학 정리노트
[신소재공학] 분말야금(세라믹) 산업의 발전전망
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