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Second phase dissolution

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Abstract

A detailed theoretical study was made of the dissolution of precipitates. The kinetic analyses of the atomic mechanisms included the concurrent effects of diffusion, interface reaction, and curvature, and considered the more complex problems of precipitate arrays and nondepleted matrices. The general formalism thus obtained was used to interpret the results of an experimental investigation of the technologically important problem of the dissolution of “reluctantly soluble” carbides in the Fe-C-V system. It was found that vanadium carbide (and iron carbide as well) were quite easily dissolved while complex alloy sulfides, silicates and oxides (possibly associated with the presence of vanadium) persisted, with little if any dissolution. Previous views of the reasons for poor hardenability were reevaluated in light of these results.

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Authors and Affiliations

  1. Metallurgy Department, Scientific Research Staff, Ford Motor Co., Dearborn, Mich

    Howard B. Aaron

  2. National Lead Co., Hightstown, N. J.

    Gerald R. Kotler

Authors
  1. Howard B. Aaron
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  2. Gerald R. Kotler
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Additional information

Formerly with the Process Research Department, Scientific Research Staff, Ford Motor Co.

This paper is based on an invited talk presented at a symposium on Homogenization of Alloys, sponsored by the IMD Heat Treatment Committee, and held on May 11, 1970, at the spring meeting of The Metallurgical Society of AIME, in Las Vegas, Nev.

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Aaron, H.B., Kotler, G.R. Second phase dissolution. Metall Trans 2, 393–408 (1971). https://doi.org/10.1007/BF02663326

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