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采用熔铸-中间热处理-形变工艺制备了形变Cu-7Cr及Cu-7Cr-0.07Ag原位复合材料,利用光学显微镜、扫描电镜、数字微欧计及液晶电子拉力试验机研究了Cu-7Cr及Cu-7Cr-0.07Ag合金的微观组织、力学性能和导电性能.结果表明,微量Ag的加入使Cu-7Cr合金铸态组织枝晶臂直径更小,相同应变量下形成的纤维更加细小均匀,材料的强度显著提高,电导率略有上升,延伸率小幅提高.

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