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Influence of Alloying Elements on Solidification Structures and Mechanical Properties of Cu-Sn-Zn-Bi-Se Alloys-壓鑄展-鑄造展-2015第十六屆廣州國際壓鑄、鑄造及工業(yè)爐展覽會-中國最受關(guān)注的壓鑄鑄造展會-巨浪展覽-The 16th Guangzhou Die-casting, Found
12/1/2014 壓鑄展-鑄造展- Die-casting expo-foundry expo |
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This study is concerned with the effects of Se addition on macro segregation of Bi of CAC911 copper alloy, and the effects of P and Ni addition on solidification structures and mechanical properties of CAC912 copper alloy with improved high temperature tensile strength over CAC911 copper alloy. In case of CAC911 copper alloy, step bar casting and an interrupted solidification process were carried out to examine the effects of Se addition on solidification structures. As a result, it was found that addition of Se reduced the inverse segregation of Bi, and improved distribution of fine porosities. In case of CAC912 copper alloy, a 180℃ tension test and unidirectional solidification were carried out to examine the effects of P and Ni additions on solidification structures and mechanical properties. As a result, it was found that P addition improved the strength of grain boundary at higher temperatures, and improved the 180℃ tensile strength. Single addition of Ni did not improve 180℃ tensile strength, but addition of Ni with P did.
壓鑄展-鑄造展-2015第十六屆廣州國際壓鑄、鑄造及工業(yè)爐展覽會-中國最受關(guān)注的壓鑄鑄造展會-巨浪展覽-The 16th
Guangzhou Die-casting, Foundry & Industry Furnace Exhibition
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