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Metallurgical characterizations and mechanical properties on friction welding of Incoloy 800H joints

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Abstract

The present work discusses about the mechanical and metallurgical properties of Incoloy 800 H friction welded joints. The process parameters namely friction pressure, friction time, upsetting pressure, upset time, and rotational speeds were varied from low level to high level to study their effects on the properties of the weldments. The tensile tests were carried out at four different temperatures namely at room temperature, 550, 650, and 750 °C. From the results, it is observed that as the testing temperature increased, there was a reduction in tensile strength of welds. The friction welds had higher hardness than the base metals. This was due to the formation of secondary phases (γ′ and M23C6) in friction welds. The tensile and impact fracture surfaces were further analyzed through SEM and finally the individual effects of the parameters with respect to the microstructures variation in the welds were studied.

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Authors and Affiliations

  1. School of Engineering and Technology, Indira Gandhi National Open University, New Delhi, 110068, India

    K. Anand & K. Tamilmannan

  2. Department of Production Engineering, National Institute of Technology, Tiruchirappalli, Tamilnadu, 620015, India

    S. Arun Kumar & P. Sathiya

  3. Materials Technology Division, Indira Gandhi Centre for Atomic Research, Kalpakkam, Chennai, Tamilnadu, 603102, India

    B. Arivazhagan

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  1. K. Anand
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  2. S. Arun Kumar
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  4. P. Sathiya
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  5. B. Arivazhagan
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Correspondence to P. Sathiya.

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Anand, K., Arun Kumar, S., Tamilmannan, K. et al. Metallurgical characterizations and mechanical properties on friction welding of Incoloy 800H joints. Journal of Materials Research 31, 2173–2185 (2016). https://doi.org/10.1557/jmr.2016.161

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  • DOI: https://doi.org/10.1557/jmr.2016.161

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