Correlation of martensite-austenite constituent and cleavage crack initiation in welding heat affected zone of low carbon bainitic steel
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- 作者：Liangyun Lana ; b ; lly.liangyun@gmail.com" class="auth_mail ; lanly@me.neu.edu.cn" class="auth_mail ; Chunlin Qiub ; Hongyu Songb ; Dewen Zhaob
- 关键词：Metals and alloys ; Fracture ; Welding ; Microstructure
- 刊名：Materials Letters
- 出版年：15 June 2014
- 年：2014
- 卷：125
- 期：Complete
- 页码：86-88
- 全文大小：985 K
文摘
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Impact toughness of simulated samples decreases with the increase in cooling time.
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The MA constituents can assist the crack initiation by interface debonding mechanism.
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The MA width size represents the nucleation size of crack under most circumstances.
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The Griffith crack size may be larger than the MA width size for lower heat inputs.