湖南大学学报（自然科学版）2016，Vol.43Issue(6)：10-15,6.
挤压态 CuC r25合金热变形行为及其加工图
Hot Deformation Behavior and Processing Maps of the Extruded CuCr25 Alloy
摘要
Abstract
Isothermal compression tests of extruded CuCr25 alloy were carried out at the temperature range of 750~900 ℃ and at the strain rate range of 0 .01~10 s-1 on Gleeble‐3500D system .The experi‐ment results showed that the flow stress decreased with the increase of deformation temperature and the decrease of strain rate ,which could be described by hyperbolic‐sine equation with the average hot deforma‐tion activation energy Q of 383 .4 kJ/mol .The processing maps were calculated on the basis of the dynamic materials model .The optimum processing parameters were proved to be the deformation temperature range of 830~900 ℃ and the strain rate range of 0 .01~0 .1 s-1 was obtained by processing maps and deformed microstructural observation .关键词
挤压态CuCr25合金/热压缩变形/变形激活能/加工图Key words
extruded CuCr25 alloy/hot compression deformation/hot deformation activation energy/processing maps分类
矿业与冶金引用本文复制引用
陈刚,段为樑,吴旭升..挤压态 CuC r25合金热变形行为及其加工图[J].湖南大学学报（自然科学版）,2016,43(6):10-15,6.基金项目
国家自然科学基金资助项目（51571089），National Natural Science Foundation of China （）
