| Autor: |
Kyeong-Ho Baik, Hee-Soo Kang, Dae-Gyun Roh |
| Rok vydání: |
2012 |
| Předmět: |
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| Zdroj: |
Journal of Korean Powder Metallurgy Institute. 19:317-321 |
| ISSN: |
1225-7591 |
| DOI: |
10.4150/kpmi.2012.19.4.317 |
| Popis: |
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 -(CuNiSn) grains and lamellar-structure grains. Homogenization at and subsequent rapid quenching formed a uniform solid solution -(CuNiSn) phase. Direct aging at from the homogenized Cu-5Ni-10Sn alloy promoted the precipitation of finely distributed ` or 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. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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