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首页> 外文期刊>International Journal of Electrochemical Science >Weld corrosion of GH3535 in molten (Li,Na,K)F
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Weld corrosion of GH3535 in molten (Li,Na,K)F

机译：GH3535在熔融（Li，Na，K）F中的焊接腐蚀

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The corrosion of structural materials in molten fluoride salts restricts the development of a molten salt reactor (MSR), with local galvanic corrosion of the weld joint being one of the major failure modes associated with the structural materials in the operating environment of an MSR. In this paper, in situ electrochemical measurements, combined with scanning electron microscopy (SEM/EDX) and metallographic microscope testing methods, are used to study the weld corrosion of GH3535 at 700 oC in molten (Li,Na,K)F. The results show that each part of the welding areas is in active dissolution state at the open circuit potential. The electrochemical behavior of the heat affected zone is similar to that of the GH3535 parent material. When the weld zone of the GH3535 is coupled with the parent alloy, galvanic corrosion occurs and the galvanic corrosion effect is larger than 1.
机译：熔融氟化物盐中结构材料的腐蚀限制了熔融盐反应器（MSR）的发展，焊接接头的局部电偶腐蚀是与MSR工作环境中的结构材料相关的主要失效模式之一。本文采用原位电化学测量，结合扫描电子显微镜（SEM / EDX）和金相显微镜测试方法，研究了GH3535在700 oC下在熔融（Li，Na，K）F中的焊接腐蚀情况。结果表明，在开路电位下，焊接区域的每个部分都处于主动溶解状态。热影响区的电化学行为类似于GH3535母体材料的电化学行为。当GH3535的焊接区与母体合金结合时，会发生电化腐蚀，并且电化腐蚀效应大于1。

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