WELD HAZ PROPERTIES IN MODERN HIGH STRENGTH NIOBIUM PIPELINE STEELS

摘要：

　　A microalloy addition of Ti is currently the option of choice to minimise austenite grain coarsening in the weld HAZ through the grain boundary pinning action of TiN precipitation.The thermal stability of the TiN precipitates provides control of boundary migration compared to other microalloy additions but steelmaking controls required to produce the optimum precipitate size distribution can be difficult to consistently achieve.

关键词： Weld HAZ grain growth Ti Nb toughness pipeline steels M-A phase

作者: Frank Barbaro Lenka Kuzmikova Zhixiong Zhu Huijun Li

作者单位: School of Mechanical,Materials & Mechatronic Engineering,University of Wollongong,Northfields Avenue School of Mechanical,Materials & Mechatronic Engineering,University of Wollongong,Northfields Avenue

会议类型: 国际会议

会议名称: Energy Materials 2014(第一届能源材料国际会议)

会议地点: 西安

会议语种:英文

页码: 657-664

在线出版日期: 2014-11-04（万方平台首次上网日期，不代表论文的发表时间）