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Effects of exposing duration on corrosion performance in weld joint of Ni-Mo-Cr alloy in FLiNaK molten salt
Hou, J; Yu, GJ; Zeng, CL; Ai, H; Xie, RB; Chen, YJ; Zhou, XT; Xie, LD; Wang, JQ; Yu, GJ (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, 2019 Jialuo Rd, Shanghai 201800, Peoples R China.
2016-11-01
发表期刊JOURNAL OF FLUORINE CHEMISTRY
ISSN0022-1139
卷号191页码:110-119
摘要Effects of exposure duration on corrosion performance of Ni-Mo-Cr weld joint was investigated in present work. Two batches of FLiNaK molten salt was used for the corrosion test. The corrosion process was mainly controlled by selective dissolution of Cr. The corrosion rate was increased rapidly at short-term duration up to 400 h and then slowed down to a plateau for long-term duration up to 3000 h. The corrosion performance was exactly the same between the base zone and weld zone of the weld joint after long-term exposure. The corrosion rate was mostly promoted by impurities at early stage and essentially controlled by Cr diffusion from matrix to surface. Impurities of metal ions in salt substituted Cr and deposited on surface of weld joints. The corrosion was significantly mitigated in well purified FLiNaK salt. (C) 2016 Published by Elsevier B.V.
部门归属[hou, juan ; yu, guojun ; ai, hua ; xie, ruobing ; chen, yanjun ; zhou, xingtai ; xie, leidong ; wang, jianqiang] chinese acad sci, shanghai inst appl phys, 2019 jialuo rd, shanghai 201800, peoples r china ; [zeng, chaoliu] chinese acad sci, inst met res, 62 wencui rd, shenyang 110016, peoples r china
关键词Ni-base Alloy Molten Salt Epma De-alloying Weld Joint High Temperature Corrosion
学科领域Chemistry, Inorganic & Nuclear ; Chemistry, Organic
资助者Program of International ST Cooperation; ANSTO-SINAP [2014DFG60230]; National Natural Science Foundation of China [51501217]; Strategic Priority Research Program of the Chinese Academy of Science [XDA02040000]
收录类别sci
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/76191
专题中国科学院金属研究所
通讯作者Yu, GJ (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, 2019 Jialuo Rd, Shanghai 201800, Peoples R China.
推荐引用方式
GB/T 7714
Hou, J,Yu, GJ,Zeng, CL,et al. Effects of exposing duration on corrosion performance in weld joint of Ni-Mo-Cr alloy in FLiNaK molten salt[J]. JOURNAL OF FLUORINE CHEMISTRY,2016,191:110-119.
APA Hou, J.,Yu, GJ.,Zeng, CL.,Ai, H.,Xie, RB.,...&Yu, GJ .(2016).Effects of exposing duration on corrosion performance in weld joint of Ni-Mo-Cr alloy in FLiNaK molten salt.JOURNAL OF FLUORINE CHEMISTRY,191,110-119.
MLA Hou, J,et al."Effects of exposing duration on corrosion performance in weld joint of Ni-Mo-Cr alloy in FLiNaK molten salt".JOURNAL OF FLUORINE CHEMISTRY 191(2016):110-119.
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