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The effect of grain size on the ambient temperature creep deformation behavior of a beta Ti-14.8 V alloy

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Abstract

The effect of grain size in the range of 18 to 350 µm on the ambient-temperature creep behavior of a metastable β Ti-14.8 pct V alloy was investigated at a stress level of 95 pct yield stress. The main modes of deformation were found to be stress-induced plate (SIP) formation and slip. In the 350-µm grain-size material, the plates were found to nucleate and grow with time, thereby contributing to the ambient-temperature creep strain. The extent of SIP formation and growth were found to decrease with decreasing grain size, i.e., creep strain was found to decrease with decreasing grain size. The SIPs observed during creep were found to be similar to those observed in an earlier investigation during tensile testing, which were reported to be {332}〈113〉 twins.

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Authors and Affiliations

  1. the Department of Materials and Nuclear Engineering, University of Maryland, 20742-2115, College Park, MD

    Sreeramamurthy Ankem (Associate Professor)

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  1. Anand Ramesh
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  2. Sreeramamurthy Ankem
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Ramesh, A., Ankem, S. The effect of grain size on the ambient temperature creep deformation behavior of a beta Ti-14.8 V alloy. Metall Mater Trans A 33, 1137–1144 (2002). https://doi.org/10.1007/s11661-002-0215-1

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  • DOI: https://doi.org/10.1007/s11661-002-0215-1

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