Effect of grain refinement on the corrosion of Ni-Cr alloys in molten (Li,Na,K)F
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- 作者：Yan Li Wang ; Qian Wang ; Hui Jun Liu ; liuhj@imr.ac.cn" class="auth_mail" title="E-mail the corresponding author ; hjliu2003@aliyun.com" class="auth_mail" title="E-mail the corresponding author ; Chao Liu Zeng
- 关键词：A. Ni-Cr alloy ; A. Molten (Li ; Na ; K)F ; B. Polarization ; B. SEM ; B. Weight loss ; C. Corrosion
- 刊名：Corrosion Science
- 出版年：2016
- 出版时间：August 2016
- 年：2016
- 卷：109
- 期：Complete
- 页码：43-49
- 全文大小：2319 K
文摘
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Laser remelting greatly decreases the grain size of the coarse grain Ni-Cr alloys.
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Grain refinement remarkably accelerates the dissolution of Cr.
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The corrosion of fine grain Ni-Cr alloys is obviously larger than the coarse grain one.
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The enhanced dissolution of Cr is ascribed to the increasing of overall effective diffusion coefficient of Cr.