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author:

吴维青 (吴维青.) [1] (Scholars:吴维青) | 阮玉忠 (阮玉忠.) [2] (Scholars:阮玉忠)

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CQVIP PKU CSCD

Abstract:

用系统分析方法定义了疲劳损伤变量,结合对试样疲劳损伤过程的扫描电镜观察,在线跟踪了40Cr钢试样及其在不同回火温度下疲劳裂纹萌生期间的疲劳损伤过程.实验结果表明:随着回火温度的上升,40Cr钢的疲劳过程有所不同,使裂纹萌生寿命不断提高,但回火温度与裂纹萌生寿命之间不是简单的线性关系;在450℃以下,随回火温度提高,裂纹萌生寿命明显提高;在450℃至580℃之间,随回火温度的提高,裂纹萌生寿命增加不明显.

Keyword:

回火 疲劳损伤 系统分析 裂纹萌生

Community:

  • [ 1 ] [吴维青]福州大学
  • [ 2 ] [阮玉忠]福州大学

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Source :

材料热处理学报

ISSN: 1009-6264

CN: 11-4545/TG

Year: 2005

Issue: 5

Volume: 26

Page: 68-71

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: 7

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