Výsledky vyhledávání - "Hiroshi Fukutomi"

Mechanism of Texture and Microstructure Evolution during High Temperature Plane Strain Compression in AZ31B and AZ80 Magnesium Alloys with Various Initial Textures

Autor: Makoto Hasegawa, Osamu Umezawa, Kazuto Okayasu, Hiroshi Fukutomi, Kwonhoo Kim, Hyung-Gyun Park

Publikováno v: Journal of the Japan Institute of Metals and Materials. 83:264-272

The effects of pre-existent textures on the evolution behaviors of microstructure and texture at high-temperature plane strain compression deformation of AZ31B magnesium alloy have been studied. Deformation is conducted at 723 K with a strain rate of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d27b1aece1d2cb09f39050eef41a78aa
https://doi.org/10.2320/jinstmet.j2019010

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Texture control of Fe-Mn-Si-Cr alloy by the preferential dynamic grain growth mechanism and the improvement of shape memory characteristics

Autor: Yusuke Onuki, Hiroshi Fukutomi, Kazuto Okayasu, Itaru Nakajima, Shigeru Suzuki, Makoto Hasegawa

The development of cube texture in Fe-Mn-Si-Cr shape memory alloy by the preferential dynamic grain growth mechanism is experimentally examined. The plane strain compression deformation at 1173 K with strain rates of 2.0 x 10(-3) 1.0 x 10(-3) s(-1),

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0893498ecc509415e1e8de8a123b84cb
http://hdl.handle.net/10084/145094

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Fracture toughness of a lamellar orientation-controlled TiAl-based alloy processed by either one-step or two-step compression at high temperature

Autor: Hiroshi Fukutomi, Ivo Dlouhy, Makoto Hasegawa, Ludek Stratil, Koji Sakurai

Publikováno v: Materials Science and Engineering: A. 721:303-310

In this work, the effects of lamellae orientation and the distribution of fine grains and fine lamellar colonies on the fracture toughness of orientation-controlled Ti-43 mol%Al alloy were examined. Fracture toughness was determined by three-point be

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bda84afb1f595fc436a6f5b7a636f427
https://doi.org/10.1016/j.msea.2018.02.079

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Crack Resistance Characterization in TiAl Intermetallics with Enhanced Toughness

Autor: Makoto Hasegawa, Hiroshi Fukutomi, Ivo Dlouhý, Luděk Stratil

Publikováno v: Key Engineering Materials. 741:13-18

The paper is focused on the analysis of the role of lamellar microstructure in fracture performance of model TiAl intermetallic compound. Coarse lamellar colonies and, at the same time, fine lamellar morphology were prepared by compressive deformatio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bbe7effb59791d2f26027adf2dc0b6c2
https://doi.org/10.4028/www.scientific.net/kem.741.13

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Effect of Large Strain on Texture Formation Behavior of AZ80 Magnesium Alloy during High Temperature Deformation

Autor: Kazuto Okayasu, Hiroshi Fukutomi, Kwon Hoo Kim

Publikováno v: Materials Science Forum. 879:938-942

In previous study, the formation behavior of texture and microstructure in AZ80 magnesium alloy under high temperature deformation was investigated. It was found that the basal texture was formed at stress of more than 15-20MPa and the non-basal text

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ad61f3bd6a03ff178238dbd93ecc0167
https://doi.org/10.4028/www.scientific.net/msf.879.938

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