超级双相不锈钢UNSS32750的热加工图  

Hot Processing Map of Super Duplex Stainless Steel UNS S32750

作　　者：赵新[1] 刘长红[1] 李亚宁[1] 

机构地区：[1]郑州航空工业管理学院,河南郑州450015

出　　处：《热加工工艺》2015年第15期153-155,共3页Hot Working Technology

基　　金：航空科学基金项目(2010ZE55012);郑州市科技攻关计划项目(121PPTGG361-1)

摘　　要：通过热压缩实验研究了超级双相不锈钢UNS S32750在900~1200℃、变形速率0.1~10s-1的热变形行为,并建立了热加工图。结果表明：热加工图中有一个稳定的主峰,中心位于（1200℃,0.1 s-1）,最大耗散效率超过36%。热加工图中1100~1200℃和应变速率0.1~1s-1的＂安全窗口＂是热加工的最佳区域。The hot deformation behaviours of super duplex stainless steel UNS S32750 were studied at 900-1200℃ and strain rate of 0.1-10 s^-1by hot compression tests. Hot processing maps were established. The results show that there is a stable peak in hot processing map, it is centered at 1200℃ and 0.1s^-1, and the maximum dissipation efficiency is more than 36%. The ＂safe window＂ at 1100-1200℃ and strain rate of 0.1-1s^-1in hot processing map is the optimum region for hot processing.

关 键 词：热加工图 不锈钢 热变形 

分 类 号：TG316[金属学及工艺—金属压力加工]