文献类型：期刊文献

英文题名：Microstructural evolution and mechanical properties of Cu-10Cr-0.4Zr filamentary in-situ composites

作者：Deng, Jianqi[1];Zhang, Xiuqing[1];Shuzhen, Shang[1];Zhao, Zuxin[1];Ye, Yifu[1]

机构：[1]E China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China

年份：2011

卷号：102

期号：1

起止页码：54

外文期刊名：INTERNATIONAL JOURNAL OF MATERIALS RESEARCH

收录：;EI(收录号：20110613654642);WOS:【SCI-EXPANDED(收录号:WOS:000287182700009)】；

语种：英文

外文关键词：Composites; Filaments; Microstructure; Mechanical properties

摘要：Cu-10Cr-0.4Zr alloy and in-situ composites based on the alloy were prepared. Microstructural evolution and mechanical properties of the Cu-10Cr-0.4Zr filamentary in-situ composites were investigated. It was found that with the increasing of drawing strains from 2.1 to 6.2, the thickness of Cr filaments decreased from about 5 100 nm to 300 nm, and the ultimate tensile strength increased from 510 MPa to 1 089 MPa. With increasing drawing strain up to 4.2, the Cr filaments were constrained to fold or twist (even overlapped together) on cross-sections, this could be attributed to deformation compatibility between the Cu matrix and Cr filaments, as well as the deformation mechanisms of bcc-Cr. Meanwhile, with the increasing of drawing strains from 2.1 to 6.2, the ultimate tensile strength values calculated by a modified strengthening model were in good agreement with the experimental values.