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      https://www.ias.ac.in/article/fulltext/boms/034/03/0515-0524

    • Keywords

       

      Nimonic C-263 alloy; microstructure; texture; tensile deformation; limit strains.

    • Abstract

       

      Nimonic alloys are Ni-base superalloys used for several high temperature applications, notable among them are the components in space vehicles, rocket engines, submarines, nuclear reactors, chemical processing vessels and heat exchange tubing as they exhibit excellent mechanical strength and creep resistance at high temperatures. Hence, evaluation of their formability characteristics is of utmost importance to make them into several useful components. Limit strains or forming limit curve is one of the parameters that indicates the formability, especially the drawability of sheet metal for deep drawing applications. In this paper, the limit strains of Nimonic C-263 alloy is investigated and presented using an explicit finite element code LSDYNA 3D. The material properties and the material model are evaluated by conducting tensile tests. The limit strains obtained from the simulation are verified by the analytical equations developed using vertex theory. The results tally within ±10% error.

    • Author Affiliations

       

      K Ankamma1 P V R Ravindra Reddy2 S Nagarjuna3 G Chandra Mohan Reddy1 M Komaraiah4 N Eswara Prasad5

      1. Mechanical Engineering Department, Mahatma Gandhi Institute of Technology, Hyderabad 500 075, India
      2. Mechanical Engineering Department, Chaitanya Bharathi Institute of Technology, Hyderabad 500 075, India
      3. Defence Metallurgical Research Laboratory, PO Kanchanbagh, Hyderabad 500 058, India
      4. Malla Reddy College of Engineering and Technology, Hakimpet Post, Secunderabad 500 014, India
      5. Regional Centre for Military Airworthiness (Materials), PO Kanchanbagh, Hyderabad 500 058, India
    • Dates

       
  • Bulletin of Materials Science | News

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