Research on Corrosion Resistance of the GTAW Joint of Duplex Stainless Steel

摘要：

In order to study welding performances of duplex stainless steel,gas tungsten arc welding(GTAW)was adopted to butt-weld the S31803 tube whose wall thickness is 18.26mm.Metallographic structures of the weld,base metal and heat affected zone(HAZ)were also analyzed.Crevice corrosion resistance of the GTAW joint in 6％FeCl3 + 0.05mol/L HC1 solution in different temperatures had been tested according to ASTM G48.The results showed that with rising of temperature the average rate of crevice corrosion increased but the growth of corrosion rate slowed when the temperature reached a certain degree.There was corrosion groove in submarginal area of the crevice and the area near HAZ of the groove was much deeper.The results provided a reference to welding technology of S31803 DSS and also provided experiment resources for research on welding of the DSS.

关键词： Duplex stainless steel Gas tungsten arc welding Crevice corrosion Average corrosion rate

作者: Tian Gang Yang Mei Zeng Dezhi Lin Yuanhua Zhu Dajiang Liu Fei

作者单位: State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Southwest Petroleum Universit School of Materials Science and Engineering,Southwest Petroleum University,Chengdu,610500,China State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Southwest Petroleum Universit State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Southwest Petroleum Universit

会议类型: 国际会议

会议名称: 2012 2nd International Conference on Advanced Material Research(2012 第二届先进材料研究国际会议 ICAMR2012)

会议地点: 成都

会议语种:英文

页码: 415-419

在线出版日期: 2012-01-07（万方平台首次上网日期，不代表论文的发表时间）