Microstructure Refinement and Precipitation Characteristics of TMCP-Processed Plates for Pipeline Applications

摘要：

The influence of technological parameters of controlled rolling and accelerated cooling (TMCP-processing)on microstructure and mechanical properties of plates with thickness of 25 mm and more at the mill 5000 of OJSC Мagnitogorsk Iron and Steel Works were investigated. The necessity of formation of fine-grained ferrite-bainite microstructure without elongated areas of coarse lath bainite for achievement of DWTT properties is proved. Precipitation conditions and type of Nb(C, N) and (Nb,V)(C,N) particles with the size of less than 10 nm in the process of rolling and additional tempering are defined.

关键词： microalloying microstructure accelerated cooling precipitation

作者: NASTICH S.Y. MOROZOV Y.D. MATROSOV M.Y. GALKIN V.V. DENISOV S.V.

作者单位: I.P. Bardin Research Institute, Center for Pipe and Weld Structure Steels, 9/23,2-nd Baumanskaya str MMK - Magnitigorsky Iron and Steel Works,93,Kirov str.,455002,Magnitogorsk, Russia

会议类型: 国际会议

会议名称: The 6th International Conference on High Strength Low Alloy Steels(第六届高强度低合金钢国际会议HSLA Steels2011)

会议地点: 北京

会议语种:英文

页码: 144-147

在线出版日期: 2011-05-31（万方平台首次上网日期，不代表论文的发表时间）