冷轧Cu70Cr30复合材料的显微组织和性能
Microstructure and Properties of Cold Rolled Cu70Cr30 Composite
周志明1, 雷彬彬1, 唐丽文1, 王亚平2
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作者单位：(1. 重庆理工大学 材料科学与工程学院, 重庆 400054; 2. 西安交通大学 理学院 材料物理系, 陕西 西安 710049)
中文关键字：Cu70Cr30复合材料； 冷轧； 显微组织； 导电率
英文关键字：Cu70Cr30 composite; cold rolling; microstructure; electrical conductivity
中文摘要：研究了室温低应变速率下大变形冷轧Cu70Cr30复合材料的显微组织和性能。 结果表明，Cu70Cr30复合材料经冷轧变形后富Cr相的显微组织呈现明显的纤维状；显微硬度在刚开始变形时上升很快，随变形的增加，硬度增加的幅度逐步降低；导电率随轧制变形的增加而降低，当达到一定量的大变形后，导电率又有上升。
英文摘要：The microstructure and properties of heavily cold rolled Cu70Cr30 composite at low strain rate were studied at room temperature. The results show that the microstructure of Cr-rich phases present ribbons filaments after cold rolling; the microhardness continuously increases with the increase of rolling strain; the electrical conductivity first gradually decreases with the increase of rolling strain, however, after deforming to some degree, the electrical conductivity increases again.