Multi-criteria optimization of TIG welding process parameters on AISI 409M stainless steel by Grey Taguchi method

Abstract

AISI 409M ferritic stainless steel materials were examined in this study. TIG welding was utilized for the creation of butt welded joints in the construction of the L9 Taguchi orthogonal array experiment. A visual and X-ray examination of the joints followed the procedure. After the butt-joining, a slew of experiments were run to figure out the material’s specific properties. There has been an evaluation of the weld quality in terms of the specimens’ ultimate tensile strength (UTS) and percentage elongation (PE). Grey-Taguchi methodology was used to interpret, discuss and analyse the collected data. It appears that the investigation has led to some conclusive results.

Keywords:

• Tungsten inert gas welding
• non-destructive testing
• tensile test
• grey-based Taguchi optimization

Acknowledgements

The authors would like to thank all participants in the Blue Earth workshop at Jadavpur University. Variable Energy Cyclotron Centre, Kolkata, Department of Atomic Energy and NITTTR, Kolkata has been extremely helpful.

Ethics statement

None.

Author contributions

AR: software, investigation, and writing – original draft preparation; NG: conceptualization, methodology, visualization, supervision, and writing – original draft preparation; SM: supervision.

Disclosure statement

Authors report no competing interests.

Data availability statement

In this article, all data created or analysed during this investigation are available to the author on reasonable request.

Additional information

Funding

Not applicable.