预变形对463 K人工时效Al-Cu-Mg合金显微组织的影响

中国有色金属学报, 2001, 11(z1): 31-33.

预变形对463 K人工时效Al-Cu-Mg合金显微组织的影响

谷亦杰 ^1, , 陈荣 ^2, , 张永刚 ^3, , 黄正 ^4, , 陈昌麒 ^5,

1.北京航空航天大学材料科学与工程系,

2.北京航空航天大学材料科学与工程系,

3.北京航空航天大学材料科学与工程系,

4.北京航空航天大学材料科学与工程系,

5.北京航空航天大学材料科学与工程系,

基金项目: 国家重点基础研究发展计划(973计划)(G1999064907)

关键词： Al-Cu-Mg合金 , 预变形 , 空位

Effect of pre-deformation on microstructures ofAl-Cu-Mg alloy aged at 463 K

研究了预变形对Al-Cu-Mg合金463 K人工时效行为的影响.结果表明,预变形可以提高合金的峰值硬度,合金峰值硬度的增加来自于S相数目的增加和尺寸的减小;并且由于预变形产生的位错可以作为空位的陷阱,减少了GP区沉淀析出的数量,因此预变形减少了合金在第1阶段的硬化效果.

参考文献

[1]	SUN D L;Yang D Z;Hong Y.Effect of prior cold deformation on aging behavior of Al-2.73 wt pct Li alloy[A].Tempere Finland,1988:591-596.
[2]	Matsuda K;Tada S.Effect of predeformation and excess silicon contents on precipitation in Al-Mg + 2Si alloys[A].Atlanta,1994:605-611.
[3]	Ringer S P;Muddle B C;Polmear I L .Effects of cold work on precipitation in Al-Cu-Mg-(Ag) and Al-Cu-Li-(Mg-Ag) alloys[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,1995,26:1659-1671.
[4]	Wilson R N;Forsyth P J E .Effect of additions 1% iron and 1% nickel on the age-hardening of an aluminium-2.5%copper-1.2%magnesium alloy[J].Journal of the Institute of Metals,1966,94:8-13.
[5]	Silcock J M .The structural aging characteristics of Al-Cu-Mg alloys with copper: magnesium weight ratios of 7:1 and 2.2:1[J].Journal of the Institute of Metals,1960,89:203-210.
[6]	Welpmann K;Peters M;Sanders T H Jr.Age hardening behavior of DTD XXXA[A].London UK,1986:524-529.
[7]	Perry A J;Entwitsle E M .Transient effects in impure Al-Cu alloys during the early stages of aging[J].Philosophical Magazine,1968,18:1085.
[8]	Niessen A K;de Boer F R;Boom R et al.Model predictions for the enthalpy of formation of transition metal alloys-Ⅱ[J].Calphad-computer coupling of phase diagrams and thermochemistry,1983,7:51-57.
[9]	Sen N;West D R F .Some phase precipitates generally nucleate on dislocations[J].Journal of the Institute of Metals,1969,97:87-92.
[10]	Allen R M;Vander Sande J B .The oriented growth of precipitates on dislocations in Al-Zn-Mg-part Ⅱ. A model[J].Acta Materialia,1980,28:1197.
[11]	Radmilovic V;Thomas G;Shiflet G J et al.On the nucleation and growth of Al2CuMg (S-prime) in Al-Li-Cu-Mg and Al-Cu-Mg alloys[J].Scripta Metallurgica et Materialia,1989(23):1141-1146.

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材料期刊网

预变形对463 K人工时效Al-Cu-Mg合金显微组织的影响

Effect of pre-deformation on microstructures ofAl-Cu-Mg alloy aged at 463 K

参考文献