Tadashi Mizuno
Osaka University
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Publication
Featured researches published by Tadashi Mizuno.
Materials Science and Engineering A-structural Materials Properties Microstructure and Processing | 2009
Yoshiaki Morisada; Hidetoshi Fujii; Tadashi Mizuno; Genryu Abe; Toru Nagaoka; Masao Fukusumi
Abstract The microstructural control of tool steel (SKD11) by laser melting and friction stir processing (FSP) was studied. A nanometer-sized microstructure consisting of fine M 7 C 3 carbide (particle size: ∼100xa0nm) and a matrix (grain size: ∼200xa0nm) was successfully fabricated by the FSP on the laser treated SKD11. The nanostructured SKD11 had an extremely high hardness of about 900xa0HV even with its relatively high amount of retained austenite.
Welding International | 2015
Yusuke Kitamura; Yoshiaki Morisada; Hidetoshi Fujii; Tadashi Mizuno; Genryuu Abe
Abstract (The microstructural refinement of cobalt-based alloy (Stellite No. 6) by laser cladding and friction stir processing (FSP) was studied. A nanometer-sized microstructure consisting of fine carbide (particle size: 100–200 nm) and a grain (grain size: 150–250 nm) was successfully fabricated by the FSP on the laser clad cobalt-based alloy. The nanostructured cobalt-based alloy (Stellite No. 6) had an extremely high hardness of about 750 HV.
Materials Science Forum | 2012
Toru Nagaoka; Hiroyuki Watanabe; Masao Fukusumi; Yusuke Kitamura; Tadashi Mizuno; Genryu Abe; Yoshiaki Morisada; Hidetoshi Fujii
Modification of AISI D2 tool steel was conducted by friction stir processing (FSP). Effects of tool rotational speed on microstructural evolution and mechanical properties were investigated. Though coarse primary carbides in the size of 10-50 uf06dm were observed before FSP, fine carbides smaller than 20 uf06dm and martensitic matrix with fine grains were obtained after FSP. High hardness of over 900 HV, higher than the hardness in conventional D2 tool steel, was achieved under the condition of moderate rotational speed.
Surface & Coatings Technology | 2010
Yoshiaki Morisada; Hidetoshi Fujii; Tadashi Mizuno; Genryu Abe; Toru Nagaoka; Masao Fukusumi
Bulletin of the Chemical Society of Japan | 1980
Tadashi Mizuno; Yohji Nakatsuji; Shozo Yanagida; Mitsuo Okahara
Surface & Coatings Technology | 2011
Yoshiaki Morisada; Hidetoshi Fujii; Tadashi Mizuno; Genryu Abe; Toru Nagaoka; Masao Fukusumi
Surface & Coatings Technology | 2009
Yoshiaki Morisada; Hidetoshi Fujii; Tadashi Mizuno; Genryu Abe; Toru Nagaoka; Masao Fukusumi
Journal of Heterocyclic Chemistry | 1982
Yohji Nakatsuji; Tadashi Mizuno; Mitsuo Okahara
Archive | 2010
Yoshiaki Morisada; Toru Nagaoka; Masao Fukuzumi; Hidetoshi Fujii; Tadashi Mizuno
Archive | 2011
Yoshiaki Morisada; Masao Fukusumi; Toru Nagaoka; Tadashi Mizuno; Genryu Abe; Hidetoshi Fujii