- Microstructural Feature and Aging Characteristics of Spray-Formed Cu-5Ni-10Sn Alloy
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Dae-Gyun Roh, Hee-Soo Kang, Kyeong-Ho Baik
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J Korean Powder Metall Inst. 2012;19(4):317-321.
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DOI: https://doi.org/10.4150/KPMI.2012.19.4.317
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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 alpha-(CuNiSn) grains and lamellar-structure grains. Homogenization at 800°C and subsequent rapid quenching formed a uniform solid solution alpha-(CuNiSn) phase. Direct aging at 350°C from the homogenized Cu-5Ni-10Sn alloy promoted the precipitation of finely distributed gamma' or gamma-(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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Citations
Citations to this article as recorded by  - Improved mechanical and thermophysical properties of additively manufactured Cu-Ni-Sn-P alloy by using aging treatment
Dong-Hoon Yang, Young-Kyun Kim, Sun-Hong Park, Kee-Ahn Lee
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