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材料工程  2009 

2A23时效成形铝合金的时效研究

, PP. 37-40

Keywords: 2A23铝合金,预变形,时效,显微组织,力学性能

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Abstract:

通过拉伸性能、维氏硬度测试和TEM分析研究了2A23时效成形铝合金的时效制度以及不同时效处理制度下该合金的显微组织和力学性能。结果表明合金适宜的时效温度为170℃,时效时间为20h;S′过渡相为合金的主要强化相;时效前的预变形能促进S′相细小弥散析出,显著提高合金的强度;合金的强度随预变形量的增大而升高,但过大的预变形量又会导致塑性下降;合金最佳的预变形量为2.5%~5%。

References

[1]  JEUNECHAMPS P P,HO K C,LIN J,et al.A closed form technique to predict springback in creep age-forming[J].Int J Mach Sci,2006,48:621-629.
[2]  李劲风,郑子樵,李世晨,等.铝合金时效成形和时效成形铝合金[J].材料导报,2006,20(5):101-103.
[3]  HO K C,LIN J,DEAN T A.Modelling of springback in creep forming thick aluminum sheets[J].Int J Plast,2004,20(4-5):733-751.
[4]  ADACHI T,KIMURA S,NAGAYAMA T,et al.Age forming technology for aircraft wing skin[J].Mater Forum,2004,28:202-207.
[5]  KAMP N,STARINK M J,SINCLAIR I,et al.Development of Al-Cu-Mg-Li(Mn,Zr,Sc) alloys for age-forming[J].Mater Forum,2004,28:369-375.
[6]  STARINK M J,GAO N,KAMP N,et al.Relations between microstructure,precipitation,age-formability and damage tolerance of Al-Cu-Mg-Li (Mn,Zr,Sc) alloys for age forming[J].Mater Sci Eng A,2005,418(1-2):241-249.
[7]  STARINK M J,SINCLAIR I,GAO N,et al.Development of new damage tolerant alloy for age-forming[J].Mater Sci Forum,2002,396-402:601-606.
[8]  WARNER T,LASSINCE P,LEQUEU P.Aircraft structure element made of an Al-Cu-Mg alloy[P].US Patent:6692589 B2,2004-01-17.
[9]  WANG S C,STARINK M J.Precipitates and intermetallic phases in precipitation hardening Al-Cu-Mg-(Li) based alloys[J].Int Mater Rev,2005,50(4):193-215.
[10]  李晗.2024铝合金薄板的热处理工艺与性能研究[D].西安:西北工业大学,2007.
[11]  WANG S C,STARINK M J.Precipitation hardening in Al-Cu-Mg alloy revisited[J].Scripta Mater,2006,54(2):287-291.
[12]  胡赓祥,前苗根.金属学[M].上海:上海科技出版社,1985.
[13]  ALLEN R M,VANDER SANDE J B.The oriented growth of precipitates on dislocations in Al-Zn-Mg,part II:a model[J].Acta Metal,1980,28(9):1197-1202.

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