摘要
锰和铬含量分别达１．５３％和０．６％的Ｓｉ－Ｍｎ－Ｃｒ型钢获得了Ｓｉ－Ｍｎ－Ｃｒ－Ｍｏ型热轧双相钢的相变动力学，即在ＣＣＴ曲线上出现了温度间隔为１００℃的奥氏体亚稳区。又发现随着冷速的降低，连续冷却转变后的组织中多边形铁素体量增多，贝氏体量减少，且冷速减小到一定程度时组织中出现针状马氏体。
Transformation kinetics of AS- rolled Si- Mn- Cr- Mo dual phase steels has been obtained in Si- Mn-Cr steels containing 1.53%Mn and 0.6%Cr.That is,there is a metastable austenite region about temperature interval 100℃ on CCT diagram. It is found again that relative amount of polygonal ferrite in microstructure of continuous cooling transformation increases as cooling rates decrease,and that of bainite decreases.Acicular martensite arises in microstructure when cooling rates decrease to the certain extent.
出处
《钢铁》
CAS
CSCD
北大核心
1995年第12期51-54,共4页
Iron and Steel
关键词
热轧
双相钢
相变
显微组织
AS-rolled dual phase steel,phase transformation,microstruture
