V-4Cr-4Ti合金的时效与冷加工强化  

Strengthening of V-4Cr-4Ti Alloy by Aging and Cold-working

作　　者：郑鹏飞[1] 谌继明[1,2] 室贺健夫 李聪 梁波 

机构地区：[1]核工业西南物理研究院,成都610041 [2]核燃料与材料国家重点实验室,成都610041 [3]核融合科学研究所

出　　处：《理化检验（物理分册）》2009年第5期253-259,共7页Physical Testing and Chemical Analysis(Part A:Physical Testing)

摘　　要：利用力学性能测试和微观结构观察,研究了V-4Cr-4Ti合金的时效与冷加工强化,以及冷加工与氧含量对时效进程的影响。结果表明:钒合金在时效处理过程中产生了Ti-(C,O,N)沉淀相,其中650℃×3 h时效处理的V-4Cr-4Ti合金可以取得比较好的综合力学性能;时效与冷加工能对该合金起到综合的强化效果,但冷加工对时效进程有抑制作用。另外,氧含量增加对该合金的时效强化进程有促进作用。By mechanical properties tests and microstructure observation, the strengthening of V-4Cr-4Ti alloys by aging and cold-woking was studied, along with the way of cold-work and oxygen influenced the aging process. The results showed the Ti-（C,O,N） precipitates were produced during the aging process, and 650℃/3 h was the very aging condition that V-4Cr-4Ti alloys can get better mechanical performance. An aging plus cold- working process can further strengthen the alloys. What＇s more, the strengthening of aging could be affected by the pre-cold-working and the oxygen concentration in the alloy.

关 键 词：V-4Cr-4Ti合金 时效处理 冷加工 力学性能 微观组织 

分 类 号：TG146.4[一般工业技术—材料科学与工程]