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The morphology and stability of precipitates in internally oxidised silicon-bearing nickel and cobalt alloys

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Abstract

The results of an experimental investigation into the morphology of silica precipitates in internally oxidised silicon-bearing nickel and cobalt alloys are compared with the predictions of theories that concern the growth of spheroidal and extended precipitates and dendritic phases. Some degree of agreement is obtained between theory and experiment and a fairly detailed dependence of morphology on oxidation conditions and diffusion and concentration factors is outlined. Some observations on the stability of internal oxide precipitates are discussed and some conclusions, which are believed, in the main, to be general and applicable to any internally oxidised system, are made as to the dependence of morphology on the conditions of experiment.

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Authors and Affiliations

  1. Department of Pure and Applied Physics, University of Salford, Salford, Lancashire, UK

    P. J. Nolan & P. J. Grundy

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  1. P. J. Nolan
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  2. P. J. Grundy
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Nolan, P.J., Grundy, P.J. The morphology and stability of precipitates in internally oxidised silicon-bearing nickel and cobalt alloys. J Mater Sci 6, 1143–1150 (1971). https://doi.org/10.1007/BF00550083

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  • DOI: https://doi.org/10.1007/BF00550083

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