合金结构钢的奥氏体晶粒度检验方法探讨

摘要

采用氧化法和直接淬硬法对几种合结钢的奥氏体晶粒度的显示进行了对比试验，结果表明氧化法比直接淬硬法所显示的奥氏体晶粒略为细小。%Comparative test on austenite grain size was made with several kinds of structural alloy steel products , by the ox-idation method and direct hardening method .The results show that the grain size by oxidation method might be smaller than that by direct hardening method .