Preparation and Tensile Property of Nanostructured Cu-Ag Alloy with Bimodal Grain Size Distribution

摘要：

　　Nanostructured Cu-Ag alloys with bimodal grain size distribution were prepared and their tensile deformation behaviors were studied.The alloys were processed by hot isostatic pressing of blends ofnano and micrometer-sized powder particles.The microstructure of the alloys consisted of nano-grains with an average grain size of 40 nm and coarse-grains with an average grain size of 30 um.The bimodal structured alloy exhibited high tensile strengths 522 MPa and a large plastic strain to failure approximately 30%.Simultaneously, Their tensile stress-strain curves displayed a long work-hardening region, and their tensile ductility increased with increasing coarse-grained volume fraction.The high strength primarily results from the contribution of nano-grains, while the enhanced ductility may be attributed to the improved strain hardening capability by the presence of coarse grains.

关键词： Nanocrystalline Bimodal distribution Preparation Tensile deformation

作者: Ying-guang Liu Shi-bing Zhang Zhong-he Han Xiao-yan Zhu

作者单位: School of Energy and Power Engineering and Mechanical Engineering, North China Electric Power University, Baoding 071003,Hebei Province, China

会议类型: 国际会议

会议名称: The 2016 China Functional Materials Technology and Industry Forum (2016中国国际功能材料大会暨第九届中国功能材料及其应用学术会议)

会议地点: 重庆

会议语种:英文

页码: 432-437

在线出版日期: 2016-07-25（万方平台首次上网日期，不代表论文的发表时间）