Microstructure and Property Research of T91 and T23 Heat-resisting Steel Welding Joint

摘要：

Microstructure in the welding zone, mechanical and electro-chemical corrosion properties of high matching T91/T23 heterology heat-resisting steel welding joint were investigated. Experimental result shows that good welding joint was made by high matching and argon tungsten arc process. Microstructure of the weld metal was tempering lath martensite with coarsing crystal grain. Microstructure in the HAZ of T23 steel side was mainly granular bainite and lath bainite; microstructure of HAZ at T91 steel side was mainly tempered sorbite and tempered martensite. Hardness nearbynearby the fusion zone of T91 steel was the highese, and weak carbon migration were found nearby the fusion zone of T23 steel side weld junction. Corrosion resistance properties by turns of from large to small were: welded joint, T91 base metal, T23 base metal.

关键词： high matching T91/T23 heterology welding joint mechanical property microstructure electro-chemical corrosion property

作者: Guangfeng Wu Xiaobin Zhang Huibin Xu

作者单位: School of Material Science and Engineering, Chongqing University of Technology, Chongqing 400050, China

会议类型: 国际会议

会议名称: 2011 International Conference on Mechatronics and Materials Processing(2011年机电一体化与材料加工国际会议 ICMMP)

会议地点: 广州

会议语种:英文

页码: 1471-1474

在线出版日期: 2011-11-18（万方平台首次上网日期，不代表论文的发表时间）