文献类型：期刊文献

中文题名：Cu-Cr-Zr复合粉末机械合金化研究

英文题名：Study on Mechanical Alloying of Cu-Cr-Zr Composite Powder

作者：武小记[1];刘鹏[1];张修庆[1];叶以富[1]

机构：[1]华东理工大学机械与动力工程学院承压系统安全科学教育部重点实验室,上海200237

年份：2011

卷号：40

期号：4

起止页码：78

中文期刊名：热加工工艺

外文期刊名：Hot Working Technology

收录：CSTPCD;;Scopus;北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

基金：上海市基础研究重点项目(09JC1404400)

语种：中文

中文关键词：机械合金化;Cu-Cr-Zr粉末;过饱和固溶体

外文关键词：mechanical alloying; Cu-Cr-Zr alloy powder; supersaturated solid solution

摘要：以Cu、Cr和Zr粉末为原料,采用机械合金化制备了Cu-90%Cr2Zr复合粉末。利用X射线衍射仪(XRD)和扫描电镜(SEM)研究了机械合金化过程中粉末的物相和微观形貌。结果表明:Cu-Cr-Zr粉末可通过机械合金化获得过饱和固溶体;在一定的球磨时间内,随球磨的进行,Cu-Cr-Zr粉末晶粒细化至纳米尺寸,晶格常数增加,晶格畸变降低,粉末形貌呈片状;但进一步球磨会导致铬的晶格常数降低,导致畸变增加,使得粉末变得不规则及颗粒大小不均。
Taking Cu,Cr and Zr powder as raw material,Cu-90%Cr2Zr composite powder was prepared by mechanical alloying（MA）.The phase and microstructure of the powder during mechanical alloying process was studied by XRD and SEM.The results show that supersaturated solid solution alloy powder Cu-Cr-Zr can be prepared by MA.With the increase of milling time,the grain size of the alloy powder changes into nano-meter scale,but the lattice constant increases,lattice strain reduces and the morphology of the powder becomes flake shape.After further milling,the lattice constant of chromium reduces,the lattice strain increases and the morphology of the powder with nonuniform particle size shows irregular shape.