granular bainite

例句：

1. 1. The steel was cooled to a temperature just below the melting point of granular bainite, which is around 700°C.
   这种钢被冷却到粒状贝氏体的熔点以下，大约700°C。
2. 2. Granular bainite is a type of martensite that forms during the cooling process of austenitic stainless steel.
   粒状贝氏体是奥氏体不锈钢冷却过程中形成的马氏体的一种类型。
3. 3. The grain size of granular bainite can be adjusted by changing the cooling rate and the composition of thesteel.
   粒状贝氏体的晶粒大小可以通过改变冷却速率和钢的组成来调整。