回火对18Cr2Ni4W钢渗氮后的耐蚀性能的影响
New Industrialization Straregy(2016)
Abstract
利用金相、X射线衍射、极化曲线和阻抗谱等方法研究了回火对18Cr2Ni4W钢渗氮后的组织及耐蚀性能的影响规律.结果表明:经过渗氮处理合金表面形成明显的均匀白亮渗氮层.回火处理后的渗氮层厚度增加,组织更均匀,过渡区域增大.18Cr2Ni4W合金渗氮后耐蚀性有所提高,经过480℃回火的材料耐蚀性最好.
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