Effect of GTA Welding Parameters on Bead Geometry of SAF2507 Super Duplex Stainless Steel

被引:0
作者
Sekar, C. B. [1 ]
Boopathy, S. R. [2 ]
Vijayan, S. [3 ]
Rao, S. R. K. [3 ]
机构
[1] Tagore Engn Coll, Dept Mech Engn, Chennai, Tamil Nadu, India
[2] Anna Univ, Dept Mech Engn, Chennai, Tamil Nadu, India
[3] SSN Coll Engn, Dept Mech Engn, Chennai, Tamil Nadu, India
来源
METALLURGIA ITALIANA | 2020年 / 09期
关键词
SUPER DUPLEX STAINLESS STEEL SAF (2507); GTA WELDING; ASPECT RATIO; TAGUCHI L(16 )OPTIMIZATION; HEAT INPUT; MICROSTRUCTURE; CORROSION; TOUGHNESS; LASER; ARC;
D O I
暂无
中图分类号
TF [冶金工业];
学科分类号
0806 ;
摘要
In this investigation the effect of GTA welding parameters on bead geometry of SAF 2507 Super Duplex Stainless Steel were studied. Single pass autogenous square butt joints were made on 6 mm thick plate. Taguchi L16 Orthogonal experimental design is used to optimize the process parameters. Arc Current, Welding Speed, Shielding Gas Flow Rate and Arc Gap are the input process parameters, while the aspect ratio and the depth of penetration are the responses considered. The micro structural image analysis is used to measure the bead geometry parameters such as aspect ratio and the depth of penetration. From this investigation it is found that the Arc current and Welding speed are the dominant and significant process parameter which affects the bead geometry of the joints. Regression equations have been derived to predict the depth of penetration and aspect ratio of GTA weld beads on 2507 Super Duplex Stainless Steel.
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收藏
页码:18 / 28
页数:11
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