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Author:

王燕 (王燕.) | 黄晖 (黄晖.) (Scholars:黄晖) | 高坤元 (高坤元.) (Scholars:高坤元) | 文胜平 (文胜平.) | 张萍萍 (张萍萍.) | 聂祚仁 (聂祚仁.) (Scholars:聂祚仁)

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CQVIP PKU CSCD

Abstract:

测试并对比了掺杂微量稀土Er中高Mg铝合金5E83和5E06冷轧板的疲劳性能,运用XRD、扫描电镜(SEM)以及能谱(EDS)等对合金组织与疲劳断口进行表征,探讨了Er与Mg元素对Al-Mg合金疲劳断裂行为的影响。结果表明:合金中Mg固溶量的增加可提高合金疲劳强度并减缓裂纹扩展速率。合金中Er含量超过其固溶度后,其含量的增加也可减缓裂纹的扩展,这归结为粗大析出物Al3Er能够使裂纹偏折并发生闭合从而有效阻碍裂纹的扩展。

Keyword:

疲劳断裂 Mg Al-Mg合金 Er

Author Community:

  • [ 1 ] 北京工业大学材料科学与工程学院
  • [ 2 ] 中国舰船研究院

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稀有金属

Year: 2011

Issue: 06

Volume: 35

Page: 791-798

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 9

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