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    • Discontinuous precipitation in copper base alloys

      K T Kashyap

      Alloys Volume 32 Issue 4 August 2009 pp 413-414

    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/032/04/0413-0414

    • Keywords

       

      Precipitation; Vegard’s law; copper alloys; grain boundary migration.

    • Abstract

       

      Discontinuous precipitation (DP) is associated with grain boundary migration in the wake of which alternate plates of the precipitate and the depleted matrix form. Some copper base alloys show DP while others do not. In this paper the misfit strain parameter, 𝜂, has been calculated and predicted that if 100 𝜂 > ± 0.1, DP is observed. This criterion points to diffusional coherency strain theory to be the operative mechanism for DP.

    • Author Affiliations

       

      K T Kashyap1

      1. Department of Mechanical Engineering, PES Institute of Technology, Bangalore 560 085, India

    • Dates

       
      Published
      August 2009
      Manuscript received
      12 June 2008
      Manuscript revised
      4 August 2009

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