研究了纯Ni在600℃~700℃固态NaCl 和水蒸气综合作用下 的腐蚀行为.结果表明:在NaCl+Air和NaCl+O2+H2O作用下,600℃时腐蚀作用不明显, 但700℃时腐蚀严重,而且在NaCl和水蒸气综合作用下,样品发生了减重现象.通过带能谱的 扫描电镜(SEM/EDX)和X射线衍射分析(XRD)对样品的表面和截面进行了分析,并讨论其腐蚀 机理.
The corrosion behavior of pure nickel with solid Na Cl deposit in dry air or in wet oxygen at 600℃-700℃ was studied.The results in di cated that corrosion was more severe at 700℃than that at 600℃.Furthermore,the mass gain of the specimen with solid NaCl deposit in dry air at 700℃ was very o bvious.But the mass loss of the specimen with solid NaCl deposit in wet oxygen a t 700℃ was obvious.The corroded samples were examined by scanning electron micr oscopy (SEM) with energy dispersive X-ray (EDX) and X-ray diffraction (XRD).The relevant corrosion mechanism was also discussed.
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