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      https://www.ias.ac.in/article/fulltext/pram/075/06/1259-1266

    • Keywords

       

      Laser cladding; microstructure; Ni–Mo–Cr–Si alloy.

    • Abstract

       

      Laser cladding of stainless steel substrate was carried out using Ni–32Mo–15Cr–3Si (wt%) alloy powder. Laser cladding parameters were optimized to obtain defect-free and metallurgically bonded clad. Variation in solidification rate, cooling rate and compositional variation resulted in heterogeneous microstructure. Microstructure was found to be distinctly different in regions of clad cross-section. Majority of the region was found to consist of eutectic of Mo-rich hcp intermetallic Laves phase and NiFe fcc gamma solid solution phases. Extensive microstructural examinations of different clad regions have been carried out using microscopy and microanalysis techniques.

    • Author Affiliations

       

      Reena Awasthi1 Santosh Kumar1 D Srivastava1 G K Dey1

      1. Materials Science Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
    • Dates

       
  • Pramana – Journal of Physics | News

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