4.6 Article Proceedings Paper

Phase Transformations in Ti-Fe Alloys Induced by High-Pressure Torsion

Journal

ADVANCED ENGINEERING MATERIALS
Volume 17, Issue 12, Pages 1835-1841

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/adem.201500143

Keywords

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Funding

  1. Deutsche Forschungsgemeinschaft
  2. Russian Foundation for Basic Research [12-03-00894, 16-53-12007]
  3. Ministry of Education and Science of the Russian Federation [K2-2014-013]
  4. Programme New Materials of RAS [14.A12.31.0001]

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The Ti-Fe alloys are quite important among various Ti-based alloys doped with b-stabilisers. Severe plastic deformation by the high pressure torsion (HPT) leads to the strong grain refinement in Ti-Fe alloys. The high-pressure omega Ti-phase appears during HPTof the Ti-1 wt.% Fe alloy. However, the vTi does not appear after uniaxial compression at the same pressure, without torsion. vTi remains quenched after pressure release and disappears by heating around 140-150 degrees C. However, the further alloying with iron suppresses the formation of omega Ti-phase. As a result, vTi does not appear after HPTin the Ti-10 wt.% Fe alloy.

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