钢的奥氏体晶粒度显示新方法

A New Method of Austenite Grain Size Display in Steel

摘要: 介绍了采用两种不同工艺热处理后，用常规制备金相试样的方法可以很好地显示42CrMoS4V，34CrNiMo6和20CrMnTiH钢的奥氏体晶粒度的新方法。

Abstract: A new method to display austenite grain size of 42CrMoS4V,34CrNiMo6 and 20CrMnTiH steel by means of normal metallographic sample preparation method after two kinds of heat treatment technics was introduced.