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author:

戴品强 (戴品强.) [1] | 何则荣 (何则荣.) [2] | 毛志远 (毛志远.) [3]

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CQVIP PKU CSCD

Abstract:

采用透射电镜动态拉伸、原位观察研究了低层错能合金H68黄铜断裂的微观过程. 结果发现: 黄铜薄膜试样拉伸时, 裂尖首先发射位错, 平衡时形成无位错区和反塞积位错群; 裂尖前方较厚区域可以发生孪生变形, 形成形变孪晶, 微裂纹在孪晶中形核、扩展, 导致裂纹呈Z字形扩展; 裂尖无位错区也可能形成微孪晶, 微裂纹在微孪晶中形核, 使裂纹呈不连续扩展; 微裂纹也可以从主裂纹顶端连续形核、扩展.

Keyword:

形变孪晶 断裂 无位错区 黄铜

Community:

  • [ 1 ] [戴品强]福州大学
  • [ 2 ] [何则荣]福州大学
  • [ 3 ] [毛志远]浙江大学

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Source :

中国有色金属学报

ISSN: 1004-0609

CN: 43-1238/TG

Year: 2003

Issue: 4

Volume: 13

Page: 919-923

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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