Processing map and hot working mechanisms of Cu-Ag alloy in hot compression process
Processing map and hot working mechanisms of Cu-Ag alloy in hot compression process作者机构：School of Materials Science and Engineering Chongqing University
出 版 物：《Journal of Central South University》 (中南大学学报（英文版）)
年 卷 期：2015年第22卷第3期
页 面：821-828页
核心收录：
学科分类：081603[工学-地图制图学与地理信息工程] 081802[工学-地球探测与信息技术] 07[理学] 08[工学] 070503[理学-地图学与地理信息系统] 0818[工学-地质资源与地质工程] 0705[理学-地理学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0816[工学-测绘科学与技术]
基 金：Project(CSTC2009BA4065) supported by the Chongqing Natural Science Foundation China
主 题：Cu Ag alloy strain rate sensitivity hot working mechanism processing map
摘 要：For Gu-Ag alloy, an important parameter called workability in the forming process of materials can be evaluated by processing maps yielded from the stress-strain data generated by hot compression tests at temperatures of 700-850 °C and strain rates of 0.01-10 s-1. And at the true strain of 0.15, 0.35 and 0.55, respectively, the responses of strain-rate sensitivity, power dissipation efficiency and instability parameter to temperature and strain rate were studied. Instability maps and power dissipation maps were superimposed to form processing maps, which reveal the determinate regions where individual metallurgical processes occur and the limiting conditions of flow instability regions. Furthermore, the optimal processing parameters for bulk metal working are identified clearly by the processing maps.
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