摘要
By method of TIG,two kinds of welding materials were filled in and under certain welding craft conditions,1Cr18Ni9Ti and 2Cr13 were welded.The microstructure of two kinds of welded joints were observed and analyzed by OM,SEM.Through seawater immersion test,polarization curves and AC impedance spectroscopy of two kinds of welding joints were obtained.The results show that 2Cr13 and 1Cr18Ni9Ti welded joints are typical columnar crystal,the microstructure is lath martensite+austenite+carbide.The welded joints that filled in 308 and H1Cr21Ni10Mn7Mo welding wires,corrosion resistance has same change rule:Austenite base metal>HAZ near Austenite>welded joint>HAZ near Martensite>Martensite base metal.The every zone contrast of two kinds of welded joint corrosion resistance obtains:the welded joints filled in 308>the welded joints filled in H1Cr21Ni10Mn7Mo.
作者
赵勇桃
胡雨晴
董俊慧
周军伟
Zhao Yongtao;Hu Yuqing;Dong Junhui;Zhou Junwei(Material and Metallurgy School,Inner Mongolia University of Science and Technology,Baotou,014010,China;Materials Science and Engineering school,Inner Mongolia University of Technology,Huhhot,010051,China;Steel-making factory,Iron and steel group company,Baotou,014010,China)
基金
supported by the Anhui Provincial Natural Science Foundation(Grant No.2008085 QE 231).
