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测定残余奥氏体的新方法,即首先对试样进行机械抛光,然后电解抛光,让铜有选择地沉积在马氏体上.采用的溶浓配比为955mlH_2O,4gCuSO_4和7.4mlH_2SO_4。铜的着色加强了马氏体与奥氏体之间的色彩对比,通过
A new method for the determination of retained austenite was to mechanically polish the sample and then electropolish the copper for selective deposition on the martensite using 955 ml H 2 O, 4 g CuSO 4 and 7.4 ml H 2 SO 4. The coloration of copper reinforces the color contrast between martensite and austenite