<p>Compositional boundaries of transformation-induced plasticity and mechanical twinning (TRIP/TWIP) activity in the Ti–Nb system are determined using a chemically graded sample containing 18–30 at.&#xa0;pct Nb, prepared<i> via</i> diffusion couple. Deformation mechanisms triggered by a single tensile test are analyzed by EBSD and EDX. TRIP activity is resolved in the range 22–25&#xa0;at.&#xa0;pct Nb and TWIP activity in the range 23–28&#xa0;at.&#xa0;pct Nb, showing the possibility to chemically map deformation mechanisms with a single tensile test.</p>

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A Single Tensile Test for TRIP–TWIP Mechanisms High-Throughput Mapping in a Compositionally Graded Ti–Nb Alloy

  • Clémence Fontaine,
  • Thomas Corre,
  • Loïc Perrière,
  • Hugo P. Van Landeghem,
  • Daniel Galy,
  • Thomas Belforti,
  • Philippe Vermaut,
  • Fan Sun,
  • Frédéric Prima,
  • Lola Lilensten

摘要

Compositional boundaries of transformation-induced plasticity and mechanical twinning (TRIP/TWIP) activity in the Ti–Nb system are determined using a chemically graded sample containing 18–30 at. pct Nb, prepared via diffusion couple. Deformation mechanisms triggered by a single tensile test are analyzed by EBSD and EDX. TRIP activity is resolved in the range 22–25 at. pct Nb and TWIP activity in the range 23–28 at. pct Nb, showing the possibility to chemically map deformation mechanisms with a single tensile test.