Effect of Alloy States on the Recrystallization Behavior in Single Crystal Superalloy
Recrystallization behavior after indentation loading and heat treatment at different temperatures of the as-cast and solution-treated alloy was investigated.The results showed that slip deformation occurred in the as-cast and heat treated samples after deformation and apparent slip line can be observed.Slip lines of heat treatment state was significantly more than that of the as-cast samples.Neither equiaxed nor cellular recrystallization occurred in the surface of the as-cast and solution-treated samples after heat treatment at 1120℃; Slip traces were examined in the vicinity of indentation and M6C carbide precipitated on the slip line in heat-treated samples,while cellular recrystallization occurred in the internal part and MC carbides became the nucleation centers.Equiaxed recrystallization occurred simultaneously in samples of the two states with the heat treatment at 1310℃ after deformation and the recrystallization area increased with the processing time; after heat treatment with same time and temperature,recrystallization area of the cast samples were less than that of heat-treated samples.
Alloy state:Single crystal superalloy:Recrystallization:Slip line
Lirong Liu Jingsheng Huang Guoqing Zu
School of Materials Science and Engineering, Shenyang University of Technology,Shenyang 110870
国际会议
the Chinese Materials Congress 2012(2012年中国材料大会(CMC2012))
太原
英文
733-738
2012-07-13（万方平台首次上网日期，不代表论文的发表时间）