| 时效成形对2324铝合金组织及性能的影响 |
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| 引用本文： | 孙志强,周文龙,陈国清,黄遐,曾元松.时效成形对2324铝合金组织及性能的影响[J].材料工程,2009(10). |
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| 作者姓名： | 孙志强 周文龙 陈国清 黄遐 曾元松 |
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| 作者单位： | 1. 大连理工大学,材料科学与工程学院,辽宁,大连,116085
2. 北京航空制造工程研究所,北京,100024 |
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| 摘 要： | 研究了时效成形对2324铝合金力学性能的影响,利用透射电镜观察了时效成形过程中的微观组织.研究了时效成形产生的"应力位向效应"及其对力学性能的影响,对"应力位向效应"的特征和产生原因进行了分析.结果表明:由于外加应力造成了平行应力方向和垂直应力方向扩散系数的差异,导致析出相择优生长.无应力时效时析出相沿{201}晶面族均匀析出,时效成形过程中析出相沿平行(111)方向择优生长,择优生长方向主要取决于外加应力的方向.
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| 关 键 词： | 微观组织 应力位向效应 时效成形 2324铝合金 |
Effect of Age-forming on Microstructures and Properties of 2324 Al Alloy |
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| SUN Zhi-qiang,ZHOU Wen-long,CHEN Guo-qing,HUANG Xia,ZENG Yuan-song.Effect of Age-forming on Microstructures and Properties of 2324 Al Alloy[J].Journal of Materials Engineering,2009(10). |
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| Authors: | SUN Zhi-qiang ZHOU Wen-long CHEN Guo-qing HUANG Xia ZENG Yuan-song |
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| Affiliation: | SUN Zhi-qiang1,ZHOU Wen-long1,CHEN Guo-qing1,HUANG Xia2,ZENG Yuan-song2 (1 School of Materials Science , Engineering,Dalian University of Technology,Dalian 116085,Liaoning,China,2 Beijing Aeronautical Manufacturing Technology Research Institute,Beijing 100024,China) |
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| Abstract: | The effect of age-forming on the mechanical properties of 2324 Al alloy was investigated.The microstructure evolution during age-forming was observed with TEM.The stress orientation effect of age-forming and its effect on the mechanical properties were studied.The characteristics and the reason of the stress orientation effect were analyzed.The results demonstrate that due to the difference of the diffusion coefficients between in the parallel stress direction and vertical stress direction,the precipitates ... |
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| Keywords: | microstructure stress orientation effect age-forming 2324 Al alloy |
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