摘要
采用再结晶退火和时效硬化两种热处理方式,研究了Be对7475铝合金组织及性能的影响。结果表明,0.023%的Be能细化7475铝合金晶粒,提高其综合力学性能,并能提高再结晶温度,延长再结晶孕育期,降低再结晶速度,同时还加快了该合金的时效硬化进程。
The microstructure and mechanical properties of the 7475 aluminum alloy with 0.023% Be addition heat treated by recrystalization annealing and ageing hardening were researched.The results showed that 0.023% Be addition can refine the grain and improve the comprehensive mechanical properties and recrystallization temperature,and extend recrystallization inoculation period and decrease recrystallization rate,meanwhile,promote the ageing hardening process of the alloy.
出处
《特种铸造及有色合金》
CAS
CSCD
北大核心
2005年第9期569-571,共3页
Special Casting & Nonferrous Alloys
关键词
7475铝合金
BE
再结晶
时效硬化
组织
力学性能
7475 Al Alloy,Be,Recrystallization,Ageing-hardening,Structure,Mechanical Properties
