bainite ductile iron

例句：

1. 1.The steel was made using the bainite process.
   这种钢材是用贝氏体工艺生产的。
2. 2. Bainite is a type of ferrite that forms during cooling from the liquid state.
   贝氏体是一种在液态冷却过程中形成的铁素体类型。
3. 3.In the bainite stage, the metal undergoes a transformation from austenite to bainite.
   在贝氏体阶段，金属经历从奥氏体到贝氏体的转变。