| SAF2205/16MnR双相不锈钢复合板焊接接头的组织与性能 |
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| 引用本文： | 董桂萍,王少刚,季小辉.SAF2205/16MnR双相不锈钢复合板焊接接头的组织与性能[J].机械工程材料,2009,33(4). |
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| 作者姓名： | 董桂萍 王少刚 季小辉 |
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| 作者单位： | 南京航空航天大学材料科学与技术学院,江苏南京,210016
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| 基金项目： | 江苏省高新技术产业化资助项目 |
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| 摘 要： | 对SAF2205/16MnR双相不锈钢复合板进行了焊接,基层采用手工电弧焊,以E5015焊条为填充材料,过渡层及覆层采用钨极氩弧焊,以ER2209焊丝为填充材料;对焊接接头进行了拉伸试验,利用扫描电镜、光学显微镜及X射线衍射仪等分析了接头过渡层焊缝及其熔合区域的显微组织及物相组成.结果表明:焊接接头的抗拉强度为512 MPa;覆层母材/热影响区/过渡层焊缝之间的显微组织过渡缓和,且铁素体和奥氏体相的比例均在控制范围内;异种金属熔合界面未出现明显的合金元素短程扩散,且在焊缝金属中未发现有M23C6和σ等脆性相析出;所得接头具有良好的力学性能和耐腐蚀性能.
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| 关 键 词： | 双相不锈钢 复合板 焊接工艺 过渡层焊缝 |
Microstructure and Properties of the Welded Joints of SAF2205/16MnR Duplex Stainless Steel Composite Plate |
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| DONG Gui-ping,WANG Shao-gang,JI Xiao-hui.Microstructure and Properties of the Welded Joints of SAF2205/16MnR Duplex Stainless Steel Composite Plate[J].Materials For Mechanical Engineering,2009,33(4). |
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| Authors: | DONG Gui-ping WANG Shao-gang JI Xiao-hui |
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| Affiliation: | Nanjing University of Aeronautics and Astronautics;Nanjing 210016;China |
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| Abstract: | The welding technology of the composite plate of SAF2205 duplex stainless steel and 16MnR steel was studied.The base metal was welded with E5015 welding rods by shielded metal arc welding(SMAW),and transition region and clad metal were welded with ER2209 welding rods by tungsten inert gas arc welding(TIG).The tensile property,microstructure and phase compositions of joints had been analyzed by means of tensile machine,scanning electron microscopy,optical microscopy and X-ray diffraction,etc.The results show... |
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| Keywords: | duplex stainless steel composite plate welding technology transition layer weld |
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