High temperature deformation behavior and corrosion resistance of 2205 duplex stainless steel under strain rate of 0.5s-1
Under strain rate of 0.5s-1,the effect of deformation temperature on flow stress,microstructure and corrosion resistance of 2205 duplex stainless steel (DSS) was investigated.The dynamic recrystallization (DRX) of austenite phase was enhanced with the deformation temperature increasing from 850℃ to 1050℃,meanwhile,the leading deformation mechanism changed from work hardening to DRX.When the deformation temperature was further increased to 1250℃,the dynamic recovery (DRV) of ferrite phase played a leading role.The specimen after deformation at 1050℃ exhibited better DRX behavior,which leads to more γ/γ grain boundaries and δ/γ,boundaries formation,increasing the occurrence of pitting corrosion,and it presented best corrosion resistance at 950℃.
hot compression deformation temperature grain boundaries pitting corrosion
Yinhui Yang Shaohong Li
School of Materials Science and Engineering, Kunming University of Science and Technology,Kunming 650093, China
国际会议
昆明
英文
1054-1057
2012-10-12（万方平台首次上网日期，不代表论文的发表时间）