Influence of Annealing Temperature on Microstructure and Properties of Warm-rolled AZ31 Magnesium Alloy Sheets
Warm-rolled AZ31 alloy sheets were annealed at different temperatures ranging from 150 to 450°C.Effects of annealing temperature on microstructure and properties of warm-rolled AZ31 alloy sheets,especially the formability,were investigated.The results revealed that the Lankford value (r-value) and strain-hardening exponent (n-value) first increased and then became relatively steady with the increase of annealing temperature.The Erichsen value (IE) first increased and then decreased with the increase of annealing temperature and the AZ31 alloy sheets exhibited the highest IE of 3.02 mm when annealing at 250°C,which can be mainly attributed to a larger elongation,a lower r-value and a higher n-value.
Annealing temperature Warm-rolled AZ31 alloy Formability
Hua Zhang Guangsheng Huang Jinhan Lin Lifei Wang
College of Material Science and Engineering, Chongqing University, Chongqing 400045, China;National Engineering Research Center for Magnesium Alloys, Chongqing University, Chongqing400044, China
国际会议
the Chinese Materials Congress 2012(2012年中国材料大会(CMC2012))
太原
英文
352-358
2012-07-13（万方平台首次上网日期，不代表论文的发表时间）