【摘 要】
：
The effects of thermomechanical treatment on the properties and microstructure of Cu-Cr-Zr alloy and Cu-Cr-Zr-Ag alloy were investigated.Ag addition improves th
【机 构】
：
State Key Laboratory of Nonferrous Metals and Processes
【基金项目】
：
TEM and SEM observation support from Prof.Cui and Miss Bei at Microstructure Laboratory for Energy Materials of China University of Petroleum (Beijing Campus) is also appreciated;The authors acknowled
论文部分内容阅读
The effects of thermomechanical treatment on the properties and microstructure of Cu-Cr-Zr alloy and Cu-Cr-Zr-Ag alloy were investigated.Ag addition improves the mechanical properties of the alloy through solid solution strengthening and brings a little effect on the electrical conductivity of the alloy.A new Cu-Cr-Zr-Ag alloy was developed,which has an excellent combination of the tensile strength,elongation,and electrical conductivity reaching 476.09 MPa,15.43％ and 88.68％ IACS respectively when subjected to the optimum thermomechanical treatment,i.e.,solution-treating at 920℃ for 1 h,cold drawing to 96％ deformation,followed by aging at 400℃ for 3 h.TEM analysis revealed two kinds of finely dispersed precipitates of Cr and Cu4Zr.It is very important to use the mechanisms of solid solution strengthening,work hardening effect as well as precipitate pinning effect of dislocations to improve tensile strength of the alloy without adversely affecting its electrical conductivity.
其他文献
背景和目的 作为针对神经科学所有领域内基金支持的临床研究制定数据标准项目的一部分,美国国立神经疾病和卒中研究所(National Institutes of Neurological Disorders and S
目的探讨婴幼儿喘息性疾病患儿外周血单个核细胞(PBMC)表面淋巴细胞功能相关抗原-1(LFA-1)和巨噬细胞分化抗原-1(Mac-1)的表达及相关性,探讨喘息性疾病的免疫学发病机制,鉴别
A nanostructured surface layer was fabricated on a AZ91D magnesium alloy by using a high-energy shot peening(HESP). HESP induced structure along the depth of th
智能变电站足智能电网的重要环节。为了智能电网的安全稳定的运行，智能变电站向智能电嘲提供了数据分析基础，也为未来智能电网提供了重要的技术支持。本文主要研究和探讨了智能
According to the characteristic of cruise missiles,navigation point setting is simplified,and the principle of route planning for saturation attack and a concep
Based on the empirical electron surface model (EESM),the covalent electron density of dangling bonds (CEDDB) was calculated for various crystal planes of gold,a
本文对嵌入式操作系统VxWorks的内存管理机制进行了研究。首先分析了系统启动阶段以及启动后系统的内存视图，然后分析了VxWorks中内存的分配与释放，最后对VxWork的内存保护机制
在探讨可持续发展的时候，很多学者认为发展旅游业是实现景区可持续发展的有效途径。旅游产业作为一个绿色产业受到了政府和景区管理者的高度重视。然而，旅游业在给景区带来巨大
晚辈朋友张建云，有过人的自信，刚出炉一本新著，赤裸裸，就叫《张建云说》。此书深含孔孟之道的学习体会，得数家学术单位青睐，选定北京大学英杰会议中心（此处时有中外政要现身演讲）召开