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author:

戴品强 (戴品强.) [1] | 何则荣 (何则荣.) [2]

Indexed by:

CQVIP PKU CSCD

Abstract:

根据球铁断裂过程中石墨及石墨-基体界面的微观力学行为,对球铁组织进行优化设计.以强相(马氏体)或强韧相(奥氏体-贝氏体组织)环包围石墨,基体组织为马氏体或奥氏体-贝氏体组织,加上适量的铁素体,并通过快速加热短时保温后淬火或等温淬火获得.实验结果表明,优化组织球铁具有很高的强韧性.采用扫描电镜动态拉伸观察优化组织球铁断裂过程,发现微裂纹在石墨-基体界面萌生并沿界面扩展,马氏体环或奥-贝环阻碍界面裂纹的萌生与扩展,基体中的硬相和软相分别提高球铁的强度和韧性,这些都有利于提高优化组织球铁的强韧性.

Keyword:

优化组织 强韧化 断裂 球铁

Community:

  • [ 1 ] [戴品强]福州大学
  • [ 2 ] [何则荣]福州大学

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Source :

机械强度

ISSN: 1001-9669

CN: 41-1134/TH

Year: 2004

Issue: z1

Volume: 26

Page: 150-153

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: 3

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