Low Cost HSLA-Steel Produced by BOF-CSP Process: A Primary Study on Ti Microalloyed Pipe Line Steel

摘要：

The mechanical properties, microstructure, precipitates and strengthening mechanism of Ti microalloyed low cost HSLA steel produced by BOF-CSP were investigated. The yield strength and tensile strength of the steel were 650 MPa and 725 MPa, respectively, with fine gains of polygon ferrite and granular bainite microstructure. The mechanical properties such as elongation and cold bending were good. The dispersed precipitates of steel were mainly of Nb(C,N)and Ti(C,N) which contribution 190 MPa for strengthen in the Nb-Ti alloyed steel.

关键词： Ti microalloyed steel precipitate strengthen mechanism

作者: LI Guang-qiang WANG Jian-feng WEN De-zhi XIAO Ai-da FU Jie

作者单位: Key Laboratory for Ferrous Metallurgy and Resources Utilization of Mimstry of Education, Wuhan Unive Lianyuan Iron and Steel Co., Ltd., Loudi 417009, Hunan, China Key Laboratory for Ferrous Metallurgy and Resources Utilization of Mimstry of Education, Wuhan Unive

会议类型: 国际会议

会议名称: 2009年薄板坯连铸连轧国际研讨会(TSCR 2009)(2009 International Symposium on Thin Slab Casting and Rolling)

会议地点: 南京

会议语种:英文

页码: 466-473

在线出版日期: 2009-05-13（万方平台首次上网日期，不代表论文的发表时间）