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Cavitation-erosion-lnduced phase transformations in alloys

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Abstract

Previously reported surface phase transformations occurring during cavitation erosion in cobalt- and iron-base alloys have been confirmed. However, an examination of the effect of aging treatments on Stellite 6B failed to demonstrate any simple relationship between transformation characteristics and erosion resistance. For several iron-base transformable alloys, the erosion resistance was shown to be related to strength and again no direct correlation could be established between transformation and erosion. It is concluded that the phase transformation is incidental to the erosion process. However, since many erosion resistant alloys do undergo a deformation-induced phase transformation, a more general explanation for the erosion resistance of alloys with close-packed structures is offered in terms of stacking fault energy.

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  1. Materials and Processes Laboratory, General Electric Company, Schenectady, N. Y.

    D. A. Woodford (Research Metallurgist)

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  1. D. A. Woodford
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Woodford, D.A. Cavitation-erosion-lnduced phase transformations in alloys. Metall Trans 3, 1137–1145 (1972). https://doi.org/10.1007/BF02642445

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