CAJ | 학술논문

采用金相、X射线衍射、极化曲线测试、力学性能测试等方法研究了固溶处理对S32750双相不锈钢焊接钢管焊缝性能、组织的影响。结果表明，固溶处理能显著改善焊缝的低温冲击韧度和耐腐蚀性能；固溶处理前后焊缝各区域的相结构相同，但铁素体和奥氏体含量有差异，这种差异对焊缝耐蚀性的影响不大。
채용금상、X사선연사、겁화곡선측시、역학성능측시등방법연구료고용처리대S32750쌍상불수강한접강관한봉성능、조직적영향。결과표명，고용처리능현저개선한봉적저온충격인도화내부식성능；고용처리전후한봉각구역적상결구상동，단철소체화오씨체함량유차이，저충차이대한봉내식성적영향불대。
The effect of solution treatment on microstructures and properties of welding seam of welded pipe of a S32750 duplex stainless steel was investigated using metallographic examination , XRD, polarization curve measurement and mechanical testing .The results show that the low temperature impact toughness and corrosion resistance of the welding seam can be significantly improved by solution treating , and that the different zones of welding are constant in phase structure , but variant in ferrite and austenite contents before and after solution treating.This difference has few influence on corrosion resistance of the welding seam .