| 稀土铝锂合金2090Ce焊接热影响区组织和性能研究 |
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| 引用本文： | 贺勇,王引真.稀土铝锂合金2090Ce焊接热影响区组织和性能研究[J].材料工程,1996(11):26-29. |
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| 作者姓名： | 贺勇 王引真 |
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| 作者单位： | 西北工业大学 |
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| 摘 要： | 采用焊接热模拟试验方法系统地研究了稀土铝锂合金２０９０Ｃｅ焊接热影响区（ＨＡＺ）组织和性能；探讨了稀土元素Ｃｅ和焊接热循环峰值温度的影响及作用机制。结果表明，焊接热循环将使２０９０Ｃｅ合金ＨＡＺ发生软化，而适量的铈能够阻碍合金的再结晶、晶粒长大以及强化相Ｔ１相的溶解和聚集长大，使ＨＡＺ的软化程度降低，塑性得到改善。
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| 关 键 词： | 稀土 铝锂合金 焊接热影响区 组织 性能 |
Study on the Microstructure and Properties of Welding HAZ of Al-Li Alloy Containing Rare-Earth |
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| He Yong, Wang Yinzhen, Wang Zhongping, He Yunjia.Study on the Microstructure and Properties of Welding HAZ of Al-Li Alloy Containing Rare-Earth[J].Journal of Materials Engineering,1996(11):26-29. |
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| Authors: | He Yong Wang Yinzhen Wang Zhongping He Yunjia |
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| Affiliation: | Northwestern Polytechnical University |
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| Abstract: | The microstructure and mechanical properties of the welding heat affected zone (HAZ) of Al-Li alloy containing rare-earth cerium are investigated. The effects and mechanism of the additions of cerium and thermal cycling peak temperature are also discussed. The results show that welding thermal cycles will lead to HAZ softening and the softening degradation can be reduced and the plastisity of HAZ can be improved by adequate additions of cerium for which can restrain recrystallization, grain growth as well as dissolution, collection and growth of T1 phase. |
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| Keywords: | s: Al-Li alloys containing rare-earth welding thermal cycling welding heat affected zone micrstructures properties |
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