| 铸造Al—Si—Mg合金的时效特性及形变机制 |
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| 引用本文： | 祝汉良,郭景杰.铸造Al—Si—Mg合金的时效特性及形变机制[J].中国有色金属学报,1997,7(1):143-146. |
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| 作者姓名： | 祝汉良 郭景杰 |
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| 作者单位： | 哈尔滨工业大学铸造教研室 |
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| 摘 要： | 研究了ＡｌＳｉＭｇ系Ａ３５７合金在不同时效状态下的显微组织、力学性能及形变特性。结果表明，时效条件不同，合金的强塑性配合不同，１６５℃短时时效，强塑性搭配较好；１５５℃，４ｈ预时效，再经１７５℃，１２ｈ最终时效，进一步提高合金强度的同时，保证了塑性。不同温度下短时时效，析出物均为ＧＰ区，形变以位错切过的方式进行；长时时效，析出物均为β相，形变以位错绕过的方式进行。双级过时效处理，改善了β相的析出形态，使得滑移位错均匀分布
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| 关 键 词： | Al-Si-Mg合金 时效 显微组织 力学性能 位错 |
AGING CHARACTERISTICS AND DEFORMATION MECHANISMS OF A CAST Al Si Mg ALLOY |
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| Zhu Hanliang,Guo Jingjie,Jia Jun,Zhao Jiuzhou,Li Peiyong School of Materials Science and Engineering,Harbin Institute of Technology,Harbin.AGING CHARACTERISTICS AND DEFORMATION MECHANISMS OF A CAST Al Si Mg ALLOY[J].The Chinese Journal of Nonferrous Metals,1997,7(1):143-146. |
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| Authors: | Zhu Hanliang Guo Jingjie Jia Jun Zhao Jiuzhou Li Peiyong School of Materials Science and Engineering Harbin Institute of Technology Harbin |
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| Affiliation: | Zhu Hanliang,Guo Jingjie,Jia Jun,Zhao Jiuzhou,Li Peiyong School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001 |
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| Abstract: | |
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| Keywords: | Al Si Mg alloy aging microstructure mechanical properties dislocation |
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