In this work, the effect of holding durations (10–60min) during austempering at 300, 350 and 400 °C on the structure and properties of a 0.61C-1.71Si-0.86Mn steel has been studied. At all the austempering temperatures, austenite fraction gradually decreases with the increase in holding duration. Austempering temperature has been found to influence the rate of depletion of austenite. The effect of Mn and Si content of steel on the extent of transformation of austenite to bainitic ferrite and carbides during prolonged austempering holding has also been looked at. Analysis drawn from existing literature along with the current data shows that along with Si, Mn also plays an important role in controlling the rate of transformation of austenite to bainitic ferrite and carbide.

在这项工作中，研究了在300、350和400°C下回火期间的保温时间（10–60min）对0.61C-1.71Si-0.86Mn钢的组织和性能的影响。在所有奥氏体温度下，奥氏体分数随保温时间的增加而逐渐降低。已经发现奥氏体回火温度影响奥氏体的消耗速率。还研究了钢中锰和硅含量对长时间回火保持期间奥氏体向贝氏体铁素体和碳化物转变的程度的影响。从现有文献和现有数据得出的分析表明，Mn与Si一起在控制奥氏体向贝氏体铁素体和碳化物的转变速率中也起着重要作用。