ULCB钢相变产物粒状与板条状贝氏体组织性能研究  

Study on Microstructure and Properties of Granular Bainite and Bainite Ferrite of ULCB Steel Transformation Production

作　　者：王建泽[1] 康永林[1] 杨善武[1] 周建[1] 

机构地区：[1]北京科技大学材料科学与工程学院,北京100083

出　　处：《材料工程》2006年第z1期252-254,258,共4页Journal of Materials Engineering

基　　金：国家973"提高钢铁质量和使用寿命的冶金学基础研究"项目(2004CB619102)

摘　　要：对ULCB钢的主要相变组织粒状贝氏体与板条贝氏体进行了力学性能比较,结果显示粒状贝氏体与板条贝氏体是完全不同的两种组织,较高温度相变产物粒状贝氏体组织较为粗大,对强度和韧性有不利影响,而较低温度相变产物板条贝氏体组织对强度和韧性是有益的。Mechanical properties of phase transformation microstructure of ULCB steel,including granular bainite and bainite ferrite have been contrasted.Results showed that granular bainite that formed at higher temperature differs completely from bainite ferrite which formed at lower temperature.Granular bainite is rather rough,which have a bad effect on strength and toughness of steels,by contrast,bainite ferrite is helpful to strength and toughness of steels.

关 键 词：板条贝氏体 粒状贝氏体 超低碳贝氏体 组织与性能 

分 类 号：TG142.1[一般工业技术—材料科学与工程]