The analysis show that the main reason to easy erode austenite grain boundary after tempering is the precipitation situation of carbide.
分析可知，碳化物的析出情况是回火后易侵蚀出奥氏体晶界的主要原因。
The analysis show that the main reason to easy erode austenite grain boundary after tempering is the precipitation situation of carbide.
分析可知，碳化物的析出情况是回火后易侵蚀出奥氏体晶界的主要原因。
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