摘要
To investigate the corrosion products of Cr in molten FLi Na K salt(46.5 mol% Li F–11.5 mol% Na F–42mol% KF), the corrosion test of the pure metal Cr was performed in molten FLi Na K salt at 700?C for 200 h.The FLi Na K salt after the corrosion test was thoroughly investigated by X-ray absorption near-edge structure spectroscopy, a transmission electron microscope, and X-ray diffraction. The results demonstrate that the predominant oxidation state of Cr in FLi Na K salt is Cr^(3+), and the main corrosion product in cooled FLi Na K salt is K_2NaCrF_6.
To investigate the corrosion products of Cr in molten FLi Na K salt（46.5 mol% Li F–11.5 mol% Na F–42mol% KF）, the corrosion test of the pure metal Cr was performed in molten FLi Na K salt at 700？C for 200 h.The FLi Na K salt after the corrosion test was thoroughly investigated by X-ray absorption near-edge structure spectroscopy, a transmission electron microscope, and X-ray diffraction. The results demonstrate that the predominant oxidation state of Cr in FLi Na K salt is Cr^（3＋）, and the main corrosion product in cooled FLi Na K salt is K_2NaCrF_6.
基金
Supported by Science and Technology Commission of Shanghai Municipality(No.11JC1414900)
National Basic Research Program of China(No.2010CB934501)
the "Strategic Priority Research Program" of Chinese Academy of Sciences(No.XDA02040000)
National Natural Science Foundation of China(Nos.11005148 and 51371188)
the Special Presidential Foundation of Chinese Academy of Sciences,China(No.29)
