新型高强韧性奥—贝组织低合金钢的研究

Study on the New Austenite-Bainite Low Alloy Steel with High Strength and Toughness

作者应用新的合金设计思想,研制了一类新型高碳低合金超高强度钢。经适当热处理,获得贝氏体铁素体板条与奥氏体薄膜交替排列的奥氏体-贝氏体双相组织。文中研究了钢的组织、力学性能及其与转变温度的关系。

According to a new concept of alloy design,a new category of ultrahigh-strength low alloy steel with high carbon content has been developed. After proper heat treatment the steel will have a dual phase structure of austenite and bainite. arranged alternatively in the form of lath ferrite and thin film austenite. The microstructures and mechanical properties of the steel as well as their relationship with isothermal temperatures have been studied.