通过电沉积的方法制备了Ni-W晶态合金与Ni-W非晶态合金.采用极化曲线与电化学阻抗谱测试了Ni-W合金在0.5mol/L NaCl溶液中的腐蚀行为.结果表明,Ni-W非晶态合金在0.5mol/L NaCl溶液中的极化曲线与Ni-W晶态合金相比,腐蚀电位较正,且钝化区间明显.Ni-W非晶态合金在0.5mol/L NaCl溶液中的电化学阻抗谱容抗弧半径远远大于Ni-W晶态合金,并且随着浸泡时间的延长Ni-W非晶态合金的表面生成一层钝化膜,容抗弧半径变化较小,而Ni-W晶态合金的容抗弧半径随浸泡时间的延长而越来越小,表面腐蚀越来越严重.总体来说,Ni-W非晶态合金的耐蚀性能要远远优于Ni-W晶态合金.
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