In this study, the effects of graphite-alloy interaction on corrosion of Ni-Mo-Cr alloy in molten FLiNaK salt were investigated. The corrosion tests of Ni-Mo-Cr alloys were conducted in graphite crucibles, to examine the differences of test specimens in conditions of electric contact and isolated with graphite, respectively. The corrosion attack is severer with more weight loss and deeper Cr depletion layer in samples electric contact with graphite than those isolated with graphite. The occurrence of galvanic corrosion between alloy specimens and graphite container was confirmed by electrochemical measurement. The corrosion is controlled by nonelectric transfer in isolated test while electrochemical reaction accelerated corrosion in electric contact test.

在这项研究中，研究了石墨-合金相互作用对熔融的FLiNaK盐中Ni-Mo-Cr合金腐蚀的影响。在石墨坩埚中进行了Ni-Mo-Cr合金的腐蚀测试，以分别检查试样在电接触和与石墨隔离下的差异。与石墨电接触的样品相比，与石墨电绝缘的样品相比，腐蚀攻击更为严重，重量损失更大，并且Cr耗尽层更深。通过电化学测量证实了合金试样和石墨容器之间的电化腐蚀的发生。在隔离测试中，腐蚀是通过非电传递来控制的，而在电接触测试中，电化学反应会加速腐蚀。