通过图4.6可以看出,热轧态钢板组织主要为板条贝氏体,回火后板条贝氏体逐渐转变为粒状贝氏体,贝氏体组织中形成少量的M-A岛组织。
It can be seen from Figure 4.6 that the structure of the hot-rolled steel sheet is mainly lath bainite. After tempering, the lath bainite gradually transforms into granular bainite, and a small amount of M-A island structure is formed in the bainite structure.