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Effect of the size distribution of alpha particles on microstructure evolution during heat treatment of an alpha/beta titanium alloy

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Abstract

A model was developed to describe the diffusional growth of a size distribution of alpha particles in Ti-6Al-4V during cooldown following alpha/beta solution treatment. Model results for initial microstructures with the same initial volume fraction of alpha but comprising either a distribution of particle sizes or a uniform particle size (equal to the average size of the distribution) yielded almost identical results in terms of final volume fraction and average particle size. The simulations quantified the narrowing of the size distribution associated with the different growth rates of small and large particles.

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Authors and Affiliations

  1. UTC, 45432, Dayton, OH

    J. D. Miller (Research Engineer)

  2. the Air Force Research Laboratory, Materials and Manufacturing Directorate, AFRL/MLLM, 45433-7817, Wright-Patterson Air Force Base, OH

    S. L. Semiatin (Senior Scientist, Materials Processing/Processing Science)

Authors
  1. J. D. Miller
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  2. S. L. Semiatin
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Miller, J.D., Semiatin, S.L. Effect of the size distribution of alpha particles on microstructure evolution during heat treatment of an alpha/beta titanium alloy. Metall Mater Trans A 36, 259–262 (2005). https://doi.org/10.1007/s11661-005-0158-4

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  • DOI: https://doi.org/10.1007/s11661-005-0158-4

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