Influence of Extrusion Temperature on Microstructures and Properties of Cu-17Ni-3Al-X Alloy

摘要：

　　The microstructures and mechanical properties of the Cu-17Ni-3Al-X alloy extruded at different temperatures were investigated by hardness and tensile tests,optical microscope and scanning electronic microscope.The experimental results showed that dynamic re-crystallization occured during the hot extrusion at 1000 ℃.The grain size of the extruded alloy was significantly refined and the mechanical properties increased remarkably compared to the as-cast alloy.The alloy extruded at 1075 ℃ exhibited good mechanical properties with tensile strength of 994 MPa,Brinell hardness of 296 and elongation of 8.0%,which are 30%,9% and 285% higher than that of the as-cast alloy.

关键词： Cu-Ni alloy Extrusion temperature Mechanical property Microstructure

作者: Wei Tan Yuanhui Weng Zongqiang Luo Weiwen Zhang

作者单位: School of Mechanical & Automotive Engineering, South China University of Technology, Guangzhou 510640, China

会议类型: 国际会议

会议名称: the Chinese Materials Congress 2012(2012年中国材料大会(CMC2012))

会议地点: 太原

会议语种:英文

页码: 105-111

在线出版日期: 2012-07-13（万方平台首次上网日期，不代表论文的发表时间）