GAS TUNGSTEN ARC WELDING AND PLASMA ARC WELDING OF DUPLEX STAINLESS STEEL

Authors

  • Arunkumar N Department of Mechanical Engineering, St.Joseph’s College of Engineering, Chennai, Tamil Nadu-600119, India
  • Ajai Babu A Department of Mechanical Engineering, St.Joseph’s College of Engineering, Chennai, Tamil Nadu-600119, India
  • Anand R Department of Mechanical Engineering, St.Joseph’s College of Engineering, Chennai, Tamil Nadu-600119, India

Keywords:

Duplex Stainless Steel, GTAW, PAW

Abstract

To study the welding characteristics of Duplex stainless steel (S2205) plate of 8 mm thickness by performing Gas tungsten arc welding(GTAW) and Plasma arc welding(PAW) .Vickers Microhardness Test, Bend test, Microstructure analysis are done in order to obtain the welding characteristics. The joint fabricated by the Gas Tungsten arc welding (GTAW) is found to have higher hardness in the weld region when compared to the joints fabricated by Plasma arc welding (PAW) process. To evaluate the quality of weld as a function of ductility, bend test is performed and breakage report is obtained. Microscopic examination was conducted to study the material behaviour in the Base metal, Heat affected zone (HAZ) and Weld zone of the welded sample. The major weld defects occurring in the joints fabricated by Gas tungsten arc welding (GTAW) and Plasma arc welding (PAW) processes was determined by Radiographic Testing.

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Published

2013-09-01

How to Cite

[1]
Arunkumar N, Ajai Babu A, and Anand R, “GAS TUNGSTEN ARC WELDING AND PLASMA ARC WELDING OF DUPLEX STAINLESS STEEL”, JME, vol. 8, no. 3, pp. 149–155, Sep. 2013.