| 铬含量对ECAP铜铬合金组织和显微硬度的影响 |
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| 引用本文： | 刘富,张修庆,邓鉴棋,赵祖欣,叶以富. 铬含量对ECAP铜铬合金组织和显微硬度的影响[J]. 热加工工艺, 2008, 37(22) |
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| 作者姓名： | 刘富 张修庆 邓鉴棋 赵祖欣 叶以富 |
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| 作者单位： | 华东理工大学,承压系统安全科学教育部重点实验室,机械与动力工程学院,上海,200237 |
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| 基金项目： | 上海市重点学科建设项目 |
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| 摘 要： | 制备不同质量百分含量铬的铜铬合金试样,对合金试样进行等径角挤压(ECAP)处理。然后采用金相显微镜和硬度测试仪等进行合金微观组织和力学性能的研究。结果表明,铬合金元素在合金中以颗粒状均勺分布,ECAP加工的道次越多,晶粒细化程度越大。其中Cu-7.5wt%Cr和Cu-11.25wt%Cr合金经ECAP加工处理后晶粒细化效果最为明显。同时,经过ECAP后试样各表面的显微硬度值均有不同程度的增加。
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| 关 键 词： | 铜铬合金 等径角挤压 晶粒细化 显微硬度 |
Effect of Cr Content on Microstructure and Microhardness of Cu-Cr Alloy by ECAP |
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| LIU Fu,ZHANG Xiuqing,DENG Jianqi,ZHAO Zuxin,YE Yifu. Effect of Cr Content on Microstructure and Microhardness of Cu-Cr Alloy by ECAP[J]. Hot Working Technology, 2008, 37(22) |
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| Authors: | LIU Fu ZHANG Xiuqing DENG Jianqi ZHAO Zuxin YE Yifu |
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| Abstract: | Cu-Cr alloys with different mass percentages of chromium were prepared by equal channel angular pressing(ECAP).The microstructure and mechanical properties of the alloys were researched by metallographic microscope and hardness-testing device.The results show that chromium element is uniform distribution with graininess in the alloys.The more the passes of ECAP,the finer the grain size.The grain refinement of Cu-7.5wt%Cr and Cu-11.25wt%Cr alloys is the most obvious aider ECAP processing.And the microhardness on the different surfaces of the samples increases differentially after ECAP processing. |
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| Keywords: | Cu-Cr alloys ECAP grain refinement microhardness |
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