Mechanism-related modelling of pit evaluation in the CrNiMoV steel in simulated environment of low pressure nuclear steam turbine
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- 作者：Linghua Luo ; Yuhui Huang ; Shuo Weng ; Fu-Zhen Xuan ; fzxuan@ecust.edu.cn" class="auth_mail" title="E-mail the corresponding author
- 关键词：Low alloy steel ; Welded joint ; Pitting corrosion ; Modelling
- 刊名：Materials & Design
- 出版年：2016
- 出版时间：5 September 2016
- 年：2016
- 卷：105
- 期：Complete
- 页码：240-250
- 全文大小：3713 K
文摘
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Pit evolution in a welded joint was addressed in 3.5 wt.% NaCl solution at 180 °C.
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Great pit density in weld metal approaching the fusion line was related to the galvanic effect and microstructure difference.
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Different mechanisms of pit nucleation were observed in base and weld zones of the welded joint.
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A model of pit depth distribution involving different mechanisms was developed.