摘要
设计一种非调质复相N80级ERW石油套管钢,通过模拟轧制实验研究试验钢的成份、组织及性能。N80实验钢板的主要组织为多边形铁素体加板条贝氏体组成的复相组织-且随着等温温度的降低,多边形铁素体含量降低,贝氏体含量增多。N80实验钢板的强度、韧塑性均高于API 5CT标准性能要求,且具有较低的屈强比。
A non-quenched and tempered multiphase ERW N80 oil casings steel is designed. The components, microstructure and mechanical properties of the testing steel were studied by rolling simulation. Result shown that the mierostructure of the testing steel is composed of polygonal ferrites and lath bainites. According to the deceasing of the isothermal temperature, the content of lath bainites increased and the content of the ferrites decreased. The strength and plasticity and toughness of the N80 test steel can meet the standard requirement （API 5CT） of the N80 oil casing steels, and lower yield ratio are obtained.
出处
《安徽工业大学学报（自然科学版）》
CAS
2010年第2期145-147,共3页
Journal of Anhui University of Technology（Natural Science）
关键词
非调质
复相
组织
力学性能
non-quenchedand tempered
multiphase
mierostructure
mechanical properties
