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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2012.1
- 수록면
- 317 - 321 (5page)
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In this study, Cu-5Ni-10Sn(wt%) spinodal alloy was manufactured by gas atomization spray forming, and the microstructural features and mechanical properties of Cu-5Ni-10Sn alloy have been investigated during homogenization,cold working and age-hardening. The spray formed Cu-5Ni-10Sn alloy consisted of an equiaxed microstructure with a mixture of solid solution α-(CuNiSn) grains and lamellar-structure grains. Homogenization at 800oC and subsequent rapid quenching formed a uniform solid solution α-(CuNiSn) phase. Direct aging at 350oC from the homogenized Cu-5Ni-10Sn alloy promoted the precipitation of finely distributed γ' or γ-(Cu,Ni)3Sn phase throughout the matrix, resulting in a significant increase in microhardness and tensile strength. Cold working prior to aging was effective in strengthening Cu-5Ni-10Sn alloy, which gave rise to a maximum tensile strength of 1165 MPa. Subsequent aging treatment slightly reduced the tensile strength to 1000-1100 MPa due to annealing effects.
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