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
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。
时效处理
冷加工
力学性能
微观组织
V-4Cr-4Ti alloy
aging treat
cold-working
mechanical properties
microstructure
Abstract
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.
中图分类号 TG146.4
所属栏目 试验与研究
基金项目
收稿日期 2008/5/5
修改稿日期
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备注郑鹏飞(1982-),男,硕士研究生。
引用该论文: ZHENG Peng-fei,CHEN Ji-ming,MUROGA T,LI Cong,LIANG Bo. Strengthening of V-4Cr-4Ti Alloy by Aging and Cold-working[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2009, 45(5): 253～259
郑鹏飞,谌继明,室贺健夫,李 聪,梁 波. V-4Cr-4Ti合金的时效与冷加工强化[J]. 理化检验－物理分册, 2009, 45(5): 253～259
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参考文献
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【2】SAKAI K,SATOU M,FUJIWARA M,et al. Mechanical properties and microstructures of high-chromium V-Cr-Ti type alloys[J]. J Nucl Mater,2004,329/333: 457-461．
【3】CHEN J M. V-W-Ti alloys[C]//. Presented at the 7th IEA and JUPITER-II Joint Workshop on the Critical Issues for Vanadium Alloys for Fusion Application. Toki,Gifu,Japan: [s.n.],2003: 15-16．
【4】MUROGA T,NAGASAKAA T,CHEN J M,et al. Microstructure of creep-deformed V-4Cr-4Ti strengthened by precipitation and cold rolling[C]//. ICFRM-13. 3313-3320. France:[s.n.],2007:10-14．
【5】陈勇,谌继明,邱绍宇. 钒合金的沉淀析出行为和时效强化[J]. 稀有金属,2006,30(3):295-299．
【6】CHEN J M,MUROGA T,NAGASAKA T,et al. The mechanical properties of V-4Cr-4Ti in various thermo-mechanical states[J]. Fus Eng Des,2006,81(23/24): 2899-2905．
【7】KOYAMA M,FUKUMOTO K,MATSUI H. Effects of purity on high temperature mechanical properties of vanadium alloys[J]. Journal of Nuclear Materials,2004,329/333: 442-446．
【8】NAGASAKA T,HEO N J,MUROGA T,et al. Examination of fabrication process parameters for improvement of low-activation vanadium alloys[J]. Fus Eng Des,2002,61/62: 757．
【9】潘金生,仝健民,田民波.材料科学基础[M]. 北京：清华大学出版社，1998:589.
【10】CHEN J M,MUROGA T,NAGASAKA T,et al. Precipitation behavior in V-6W-4Ti,V-4Ti and V-4Cr-4Ti alloys[J]. J Nucl Mater,2004,334: 159-165．
【11】TYOMENTSEV A N,KOROTAEV A D,PINZHIN YU P,et al. Effect of the modes of thermomechanical treatment on the formation of the multiphase and grain structure of V-4Ti-4Cr alloys[J]. Journal of Nuclear Materials,2004,329/333: 429-433．
【12】ROWCLIFFE A F,ZINKLE S J,HOELZER D T. Effect of strain rate on the tensile properties of unirradiated and irradiated V-4Cr-4Ti[J]. J Nucl Mater,2000,283/287/343: 508-512．
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