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Microstructural Investigations on Decomposition Behaviour of M-A Constituent and Recovery of Ductility due to PWHT in Simulated HAZ of HSLA Steels(Materials, Metallugy & Weldability)

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Abstract

The influence of the amounts of M-A constituent in simulated HAZ on notch toughness was investigated for HSLA steels. Post-heat treatment tests at 823 and 923K were made to investigate the metallurgical behaviour and ductility change. consequently the relation between the amount of M-A constituent and recovery of notch toughness was investigated. Moreover secondary hardening and temper embrittlement appeared in steels HT100 were analyzed. Generally it can be said that, when the HAZ steels contains a large amount of M-A constituent, the improvement of notch toughness could be associated with decomposition of this phase.

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Details

  • CRID
    1571980077208948736
  • NII Article ID
    110006486937
  • NII Book ID
    AA00867058
  • ISSN
    03874508
  • Text Lang
    en
  • Data Source
    • CiNii Articles

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