Formation of Deformation-Induced Products in a Metastable β-titanium Alloy during High Temperature Compression

DOI DOI Open Access

Bibliographic Information

Published
2018-01-22
DOI
  • 10.20944/preprints201801.0204.v1
  • 10.3390/met8020100
Publisher
MDPI AG

Description

<jats:p>A metastable &beta;-Ti alloy, Ti&ndash;10V&ndash;3Fe&ndash;3Al (wt.%), was subjected to thermos-mechanical processing including the compression test at 725&deg;C, which is below the &beta; transus temperature (780&deg;C), and at strain rate of 10-3s-1. The presence of phases was determined using transmission electron microscopy and X-ray diffraction. Although the dynamic recovery took place together with slip, both deformation-induced &alpha;˝ martensite and &omega; were detected as other operating mechanisms for the first time in metastable-&beta; Ti alloys deformed in &alpha;+&beta; region. The volume fraction of stress-induced &alpha;˝ was higher than that of the same alloy deformed at room temperature due to higher strain applied. Stress-induced twinning was not operational, which could be related to the priority of slip mechanism at high temperature resulted from thermally-assisted nucleation and lateral migration of kink-pairs.</jats:p>

Journal

  • Metals

    Metals 8 100-, 2018-01-22

    MDPI AG

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