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采用原位复合技术制备了Cu-10Ag合金原位复合材料,研究了热处理对形变复合材料的结构与性能的影响.热处理促使Ag沉淀析出和晶格常数降低.中间热处理增大极限拉伸强度(UTS)与改善导电率.采用不同的热机械处理获得了由不同强度与导电率组合的综合性能,典型的性能达到强度1500~1560MPa和导电率62%IACS~64%IACS.真实应变η=9.8的大变形Cu-10Ag合金原位复合材料的再结晶温度约350℃,其性能直至300℃是稳定的.自然时效处理提高大变形原位纤维复合材料的强度3.5%~5%,降低再结晶温度至250℃.

参考文献

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