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J Chin Soc Corr Pro  1987, Vol. 7 Issue (3): 207-212    DOI:
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A STUDY OF ACCELRATED CORROSION OF NICKEL IN MOLTEN SALTS AT 705℃
Zhu Rizhang and Zheng Xiaoguang(Beijing University of Iron and Steel Technology)
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Abstract  Sulfate-induced accelerated corrosion of nickel has been studied at 750℃ both with the method of Na_2SO_4-eoating test in O_2-0.45%(SO_2+SO_3) (1atm), and with the crucible-test in air in which the specimens are tatally inmersed in the molten NiSO_4-Na_2SO_4 salts mixture. Nickel is rapidly corroded under both circumstances, and an intermixed(NiO+Ni_3S_2)layer is formed as the major corrosion product. The islands of Ni_3S_2 in the intermixed layer are found to be inter-connected with each other. The NiSO_4-Na_2SO_4 melt may act as an oxidant by liberating corrosive gas (SO_3) and cause rapid corrosion of nickel.
Received:  25 June 1987     
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Zhu Rizhang and Zheng Xiaoguang(Beijing University of Iron and Steel Technology). A STUDY OF ACCELRATED CORROSION OF NICKEL IN MOLTEN SALTS AT 705℃. J Chin Soc Corr Pro, 1987, 7(3): 207-212.

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https://www.jcscp.org/EN/     OR     https://www.jcscp.org/EN/Y1987/V7/I3/207

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