论文部分内容阅读
外国学者高比在一本著作中談到:如果高速鋼中出現貝氏体(貝茵体),无論是一次貝氏体或者二次貝氏体,都可以提高高速鋼刀具的寿命。貝氏体是奥氏体中温轉变的产物,也叫石氏体。一次貝氏体是指由奥氏体直接等温分解的貝氏体;二次貝氏体是指由殘留奥氏体在回火时等温分解的貝氏体。高比用18—4—1高速鋼按不同方法进行了热处理
As a foreign scholar mentioned in a book: If bainite (bainite) occurs in high-speed steels, either bainite or bainite can increase the life of HSS tools. Bainite is the product of intermediate temperature transformation of austenite, also called austenite. Primary bainite means bainite that is directly isothermally decomposed by austenite; secondary bainite refers to bainite that is isothermally decomposed by residual austenite during tempering. High-speed high-speed steel with 18-4-1 by different methods were heat treatment