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Processing and evaluation of 15Cr-15Mo nickel base superalloy

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Abstract

A Nickel base solid solution strengthened alloy has been made with a nominal chemical composition of 15Cr-15Mo (balance Ni) through vacuum melting route and was characterized in hot worked and heat-treated conditions. Processing parameters have been optimized to get the desired microstructure and mechanical properties. The alloy has shown very good mechanical properties at elevated temperatures as well as at cryogenic temperatures. Role of solution treatment temperature and correspondingly role of grain size on mechanical properties at different temperatures has also been evaluated and reported. Heat treatment cycle for application of alloy upto 700°C has been optimized. Properties of the alloy have been compared with similar class of alloys.

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Authors and Affiliations

  1. Materials and Mechanical Engg. Entity, Vikram Sarabhai Space Centre, Trivandrum, 22, India

    R. K. Gupta, K. Thomas Tharian, K. Sreekumar & P. P. Sinha

Authors
  1. R. K. Gupta
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  2. K. Thomas Tharian
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  3. K. Sreekumar
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  4. P. P. Sinha
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Correspondence to R. K. Gupta.

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Gupta, R.K., Thomas Tharian, K., Sreekumar, K. et al. Processing and evaluation of 15Cr-15Mo nickel base superalloy. Trans Indian Inst Met 62, 533–537 (2009). https://doi.org/10.1007/s12666-009-0089-7

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  • DOI: https://doi.org/10.1007/s12666-009-0089-7

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