摘要
研究了一种Ｃｒ－Ｍｎ－Ｍｏ－Ｂ低碳低合金贝氏体钢热变形后奥氏体的连续冷却转变，获得了试验用钢热变形后奥氏体的连续冷却转变曲线。试验结果表明，本试验用钢不发生先共析铁素体析出的临界冷却速度为０．１５℃／ｓ；冷却速度在０．１５～１．００℃／ｓ范围时可得到全部粒状贝氏体组织；随着冷却速度的降低，粒状贝氏体中的小岛尺寸增大，数目减少。
The paper deals with the continuous cooling transformation of hot deformed austenite for a Cr-Mn-Mo-B bainite HSLA steel , and the CCT diagram after hot deformation has been obtained as well. The experimental results show that the critical cooling rate of pro- eutectoid ferrite is 0. 1 5 ℃/s , and the structure of complete granular bainite can be obtained with a cooling rate from 0. 15℃ /s to 1 ℃ /s.
出处
《钢铁》
CAS
CSCD
北大核心
1997年第10期48-51,共4页
Iron and Steel
