FH40+317L复合钢板焊接接头性能分析

基金项目:

工信部高技术船舶项目

Analysis on Welded Joint Properties of FH40 + 317L Clad Plates

摘要: 对FH40+317L复合钢板的焊接工艺性能进行了试验,分析了焊接接头各区域的金相组织及冲击断口形貌特征。结果表明,FH40+317L复合钢板焊接接头强度及塑性与母材匹配,复层侧不同位置处冲击结果基本相当,-60℃冲击试样断口均为韧性断裂形貌,过渡层未出现马氏体组织。
- 复合钢板 /
- 焊接工艺 /
- 力学性能
Abstract: Experiments are carried out for the welding of FH40 steel + 317L stainless steel clad plates through the selection of welding materials and the design of welding procedure. The microstructures of the joints and the morphologies of the impact fractures are analyzed. It shows that the welding procedure could be divided into three sections, including base layer welding, transition layer welding and clad layer welding. The welding joint performs a good mechanical property matching with the base metal. The impact results of the different places from the clad side are basically the same. The impact fracture at -60℃ presents a ductile fracture morphology, and no martensite microstructure occurs in the transition layer.
- stainless clad steel plate /
- welding procedure /
- mechanical property

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