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Effect of Heat Input on Macro, Micro and Tensile Properties of Flux Cored Arc Welded Ferritic Stainless Steel Joints

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Abstract

This paper discusses the influence of Flux Cored Arc Welding Process parameters such as welding current, travel speed, voltage on bead profile, metallurgical and mechanical properties of welds of 2 mm thick 409M ferritic stainless steel sheets. The study reveals that, grain coarsening, volume fraction of martensite, hardness of heat affected zone and % of delta ferrite in ER 309 weld metal increases with increase in heat input. However, the results show that variation of heat input does not make any significant effect on tensile strength of the joint. Hence, welding parameters that provide uniform bead profile for the weld are recommended for fabrication.

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Authors and Affiliations

  1. Department of Mechanical Engineering, Coimbatore Institute of Technology, Coimbatore, 641014, Tamil Nadu, India

    M. V. Venkatesan & N. Murugan

  2. BTM Division, Institute of Plasma Research, Gandhi Nagar, Gujarat, India

    Shiju Sam

  3. Indira Gandhi Centre for Atomic Research, Kalpakkam, 603102, India

    Shaju K. Albert

Authors
  1. M. V. Venkatesan
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  2. N. Murugan
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  3. Shiju Sam
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  4. Shaju K. Albert
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Correspondence to M. V. Venkatesan.

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Venkatesan, M.V., Murugan, N., Sam, S. et al. Effect of Heat Input on Macro, Micro and Tensile Properties of Flux Cored Arc Welded Ferritic Stainless Steel Joints. Trans Indian Inst Met 67, 375–383 (2014). https://doi.org/10.1007/s12666-013-0358-3

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  • DOI: https://doi.org/10.1007/s12666-013-0358-3

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