A study on the performance of super duplex stainless steel cladding over mild steel using a CMT welding

被引:1
作者
Mishra, Varsha [1 ]
Yuvaraj, N. [1 ]
机构
[1] Delhi Technol Univ, Dept Mech Engn, Delhi, India
关键词
Cold metal transfer; cladding; weld bead geometry; dilution; response surface methodology; BEAD GEOMETRY; OPTIMIZATION; DILUTION; PARAMETERS; CORROSION; QUALITY; ALLOY;
D O I
10.1080/01694243.2024.2396120
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Low carbon steels can be cladded with super-duplex stainless steels to enhance the surface's mechanical and wear properties. The current study examines the impact of process parameters on weld bead geometry and dilution % during cold metal transfer (CMT) cladding of super duplex stainless steel 2507 over low carbon steel. Response Surface Methodology (RSM) with a Central Composite Design matrix was used to optimize the process parameters (welding current, welding speed, and nozzle to workpiece distance (NTD)). The adequacy of the model was checked using an ANOVA analysis. The optimal bead width, height, penetration, and dilution values were 8.05 mm, 4.52 mm, 1.56 mm and 14.64%, respectively. The ideal input parameters were 200 A of welding current, 4.64 mm/s of welding speed, and 14 mm of NTD. The welding speed is the most dominant parameter, followed by the welding current and NTD. The cladding samples were prepared from the optimal parameters. The CMT-clad layer's microstructure, microhardness, and wear properties were also evaluated. The results indicate a dense crack-free and non-porous clad surface was obtained under optimal conditions.
引用
收藏
页码:58 / 75
页数:18
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