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The role of oxygen rich inclusions in determining the microstructure of weld metal deposits

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Abstract

The influence of the deoxidation product size distribution in determining the prior austenite grain and the subsequent balance between inter- and intragranular nucleation has been studied in C-Mn-Nb weld metals. The growth of austenite appears to be controlled by pinning of the grain boundaries by the deoxidation inclusions, and follows the classical Zener precipitate-boundary interaction equations. Some evidence of the direct nucleation by inclusions of the acicular ferrite phase has been obtained.

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Authors and Affiliations

  1. Departamento de Engenharia de Materiais, Universidade Federal de São Carlos, Brazil

    M. Ferrante

  2. Department of Mechanical Engineering, The University, Southampton, Hants, UK

    R. A. Farrar

Authors
  1. M. Ferrante
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  2. R. A. Farrar
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Ferrante, M., Farrar, R.A. The role of oxygen rich inclusions in determining the microstructure of weld metal deposits. J Mater Sci 17, 3293–3298 (1982). https://doi.org/10.1007/BF01203498

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  • DOI: https://doi.org/10.1007/BF01203498

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