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本文采用10%草酸水溶液电解浸蚀法,显示回火高速钢奥氏体晶界,具有快速、简便、易于掌握和重现性好等优点。电解浸蚀装置见图1。
In this paper, 10% oxalic acid solution electrolysis etching method, showing the tempering austenite grain boundaries of high-speed steel, with fast, easy, easy to grasp and good reproducibility. Electrolytic etching device shown in Figure 1.