冷轧Cu_(70)Cr_(30)复合材料的显微组织和性能  

Microstructure and Properties of Cold Rolled Cu_(70)Cr_(30) Composite

作　　者：周志明[1] 雷彬彬[1] 唐丽文[1] 王亚平[2] 

机构地区：[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

出　　处：《热加工工艺》2011年第2期91-92,99,共3页Hot Working Technology

基　　金：新世纪优秀人才支持计划资助项目(NCET-07-0679);重庆理工大学基金资助项目(09-60-16)

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。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.

关 键 词：Cu70Cr30复合材料 冷轧 显微组织 导电率 

分 类 号：TG146.11[一般工业技术—材料科学与工程]