Details

Autor(en) / Beteiligte

• Chen, Y.J.
• Li, Y.J.
• Walmsley, J.C.
• Dumoulin, S.
• Gireesh, S.S.
• Armada, S.
• Skaret, P.C.
• Roven, H.J.

Titel

Quantitative analysis of grain refinement in titanium during equal channel angular pressing

Ist Teil von

• Scripta materialia, 2011-05, Vol.64 (9), p.904-907

Ort / Verlag

Elsevier Ltd

Erscheinungsjahr

2011

Quelle

ScienceDirect

Beschreibungen/Notizen

• ► Grain refinement in titanium during ECAP from 1 to 8 passes at 723 K is analyzed quantitatively. ► Grain refinement of titanium during ECAP at 723 K mainly takes place in the first pass. ► {1 0 1 ¯ 2} tensile twins are firstly observed in the first pass of ECAP. ► Misorientation gradients and the driving force of dynamic recrystallization are discussed. Strain-driven grain subdivision of commercial pure titanium during 1–8 passes of equal channel angular pressing (ECAP) at 723 K is investigated quantitatively by electron backscattering diffraction. The grain refinement mainly takes place in the first pass and the efficiency gradually decreases from 1 to 4 passes, reaching saturation with further increasing strain (6–8 passes). {1 0 1 ¯ 2} tensile twins are firstly observed in the first pass of ECAP. Misorientation gradients and the driving force of dynamic recrystallization are discussed.