摘要
研究了退火温度和退火时间对含微量Ｓｃ和Ｚｒ的Ａｌ５Ｍｇ合金的显微组织和力学性能的影响。结果表明：该合金在热轧—冷轧后１３０℃，３ｈ退火处理可获得最佳的力学性能，σ０．２＝３０８ＭＰａ，σｂ＝４０６ＭＰａ，δ＝１５％；退火过程中，由于Ａｌ３（Ｓｃ，Ｚｒ）第二相对位错和亚晶界的钉扎作用，合金中依次发生不同程度的回复和部分再结晶。
The influence of annealing time and temperature on the microstructure and mechanical properties of the AlMg alloys with trace Sc and Zr has been studied. The results show that the optimum values of σ 0 2 ,σ b and δ are 308 MPa,406 MPa and 15%, respectively for coldrolling and stabilizing treatment at 130℃ for 3h. Partial recovery and recrystallization occurred during stabilizing treatment because of the particles Al 3(Sc,Zr) pinning the dislocations and lowangle grain boundaries.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
1999年第2期110-112,共3页
Rare Metal Materials and Engineering
基金
国家自然科学基金
关键词
退火工艺
显微组织
力学性能
铝合金
AlMgScZr alloy, annealing process,microstructure,mechanical property
