T
Takeshi Kawabata
Researcher at Tohoku University
Publications - 15
Citations - 793
Takeshi Kawabata is an academic researcher from Tohoku University. The author has contributed to research in topics: Fracture toughness & Dislocation. The author has an hindex of 12, co-authored 15 publications receiving 765 citations.
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Positive temperature dependence of the yield stress in TiAl L10 type superlattice intermetallic compound single crystals at 293–1273 K
TL;DR: In this paper, a floating zone method was used to obtain the fundamental knowledge on the plasticity of TiAl single crystals with five orientations and the yield stresses of all orientations tested show a positive temperature dependence similarly to most Ll2 type superlattice intermetallic compounds.
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Effect of purity and second phase on ductility of TiAl
TL;DR: In this article, the authors analyse fractographique des surfaces de rupture and determination du mode de rupture in the presence of the second phase Ti 3 Al sur la ductilite de l'alliage Ti-48% at.
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Ductile fracture in the interior of precipitate free zone in an Al-6.0%Zn-2.6%Mg alloy
Takeshi Kawabata,Osamu Izumi +1 more
TL;DR: In this article, the true fracture strain is estimated based on the idea that the grain boundary (GB) fracture in an Al-60%Zn-26%Mg alloy is the ductile fracture within the precipitate free zone (PFZ).
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Mechanical properties and dislocation structures of TiAl single crystals deformed at 4.2–293 K
TL;DR: In this article, a new strengthening mechanism due to dislocation dipoles was proposed to detect dislocation reactions and dipoles as well as Peierls stress in Ti-56.
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Bend tests and fracture mechanism of TiAl single crystals at 293–1073 K
TL;DR: In this paper, three point bend tests of TiAl single crystal specimens with [010] and [001] orientations have been performed at 293, 843 and 1073 K. Fracture surfaces are constructed from small facets of cleavage fracture on {010, {001,{110} and {101} (or {011}) planes at all temperatures and specimens tested.