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Mechanical properties and microstructural features of rotary friction welded UNS S42000 martensitic stainless-steel joints

  • Deepak Kumar Madhappan

    Deepak Kumar Madhappan is working as Assistant Professor in Government College of Engineering, Salem, India. He completed MEng (Manufacturing Engineering) from Government College of Technology, Coimbatore, India, and BTech (Hons) Metallurgical Engineering and Material Science from National Institute of Technology, Jamshedpur, India. He has total of 12 years of work experience including teaching and industry. His research interests include iron and steel making, advanced welding technology and thermodynamics.

    , Ponnusamy Kumaraswamy Palani

    Ponnusamy Kumaraswamy Palani received his BEng in Production Engineering from the Government College of Technology affiliated to Bharathiar University, India, in 1987 and ME in Production Engineering from the Government College of Technology affiliated to Bharathiar University, India. He received his PhD from the Anna University, India. He is currently a Professor at Alagappa Chettiar Government College of Engineering and Technology, Karaikudi, Tamilnadu, India. His research interests include welding (mechanical engineering), computer integrated manufacturing, robotics and automation, artificial neural network and genetic algorithm.

    , Duraisamy Thirumalaikumarasamy

    Duraisamy Thirumalaikumarasamy is working as Assistant Professor in Government College of Engineering, Bargur, India. He completed his PhD and MEng Manufacturing Engineering from Annamalai University, Chidambaram, Tamilnadu, India, and BEng Mechanical Engineering from Manonmanium Sundaranar University, Tirunelveli, Tamilnadu, India. He has total of 19 years of work experience including teaching and industry. His research interests include coatings technology, corrosion and materials characterization.

    and Tushar Sonar

    Tushar Sonar is working as Senior Research Scientist in South Ural State University, Chelyabinsk Russia. He completed PhD Manufacturing Engineering (Welding) from Annamalai University, Chidambaram, Tamil Nadu, India. He completed his M.Tech. (Mechanical Engineering) from Dr. Babasaheb Ambedkar Marathwada University, Sambhaji Nagar and BEng (Mechanical Engineering) from Pune University, Pune, Maharashtra, India. He is a recipient of ISRO RESPOND research fellowship. He has total of eight years of work experience including teaching, industry and research. His research interests include welding and joining, additive manufacturing and heat treatment of metals.

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Published/Copyright: July 26, 2023
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Abstract

The main objective of this investigation is to study the mechanical properties and microstructural features of rotary friction welded (RFW) UNS S42000 martensitic stainless-steel joints. The welded joints were stress relieved at 316 °C for 1 h holding followed by air cooling. The joints welded using the friction pressure of 60 MPa, forging pressure of 64 MPa, friction time of 18 s and forging time of 4 s exhibited superior tensile properties. Microstructure showed carbide precipitates and strain induced and partial strain induced martensite in weld zone for heat treated condition and coarser martensite and retained austenite for non-heat treated condition. Fractography for tensile tested samples reveals predominantly ductile mode of fracture for heat treated samples than non-heat treated condition. The Microhardness showed a higher value of hardness for the weld zone due to strain induced martensite and lesser hardness at PDZ due to partial strain hardened martensite.


Corresponding author: Deepak Kumar Madhappan, Metallurgical Engineering, Government College of Engineering Salem, Salem, 636011, Tamil Nadu, India, E-mail:

About the authors

Deepak Kumar Madhappan

Deepak Kumar Madhappan is working as Assistant Professor in Government College of Engineering, Salem, India. He completed MEng (Manufacturing Engineering) from Government College of Technology, Coimbatore, India, and BTech (Hons) Metallurgical Engineering and Material Science from National Institute of Technology, Jamshedpur, India. He has total of 12 years of work experience including teaching and industry. His research interests include iron and steel making, advanced welding technology and thermodynamics.

Ponnusamy Kumaraswamy Palani

Ponnusamy Kumaraswamy Palani received his BEng in Production Engineering from the Government College of Technology affiliated to Bharathiar University, India, in 1987 and ME in Production Engineering from the Government College of Technology affiliated to Bharathiar University, India. He received his PhD from the Anna University, India. He is currently a Professor at Alagappa Chettiar Government College of Engineering and Technology, Karaikudi, Tamilnadu, India. His research interests include welding (mechanical engineering), computer integrated manufacturing, robotics and automation, artificial neural network and genetic algorithm.

Duraisamy Thirumalaikumarasamy

Duraisamy Thirumalaikumarasamy is working as Assistant Professor in Government College of Engineering, Bargur, India. He completed his PhD and MEng Manufacturing Engineering from Annamalai University, Chidambaram, Tamilnadu, India, and BEng Mechanical Engineering from Manonmanium Sundaranar University, Tirunelveli, Tamilnadu, India. He has total of 19 years of work experience including teaching and industry. His research interests include coatings technology, corrosion and materials characterization.

Tushar Sonar

Tushar Sonar is working as Senior Research Scientist in South Ural State University, Chelyabinsk Russia. He completed PhD Manufacturing Engineering (Welding) from Annamalai University, Chidambaram, Tamil Nadu, India. He completed his M.Tech. (Mechanical Engineering) from Dr. Babasaheb Ambedkar Marathwada University, Sambhaji Nagar and BEng (Mechanical Engineering) from Pune University, Pune, Maharashtra, India. He is a recipient of ISRO RESPOND research fellowship. He has total of eight years of work experience including teaching, industry and research. His research interests include welding and joining, additive manufacturing and heat treatment of metals.

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: None declared.

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

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Published Online: 2023-07-26
Published in Print: 2023-09-26

© 2023 Walter de Gruyter GmbH, Berlin/Boston

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