Coalesced bainite by isothermal transformation of reheated weld metal

J. H. Pak, H. K. D. H. Bhadeshia, L. Karlsson and E. Keehan


The martensite start and bainite start temperatures have been determined in reheated, high strength weld deposits, with each result associated with 95% coincidence limits. This helped define isothermal transformation temperatures where bainite can be obtained without the risk of unintentional transformation to martensite. It has been demonstrated, therefore, that coalesced bainite, which is detrimental to mechanical properties, can be generated isothermally without the possibility of confusion with autotempered martensite.

Science and Technology of Welding and Joining 13 (2008) 593--597.

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