M
Masaaki Nakai
Researcher at Kindai University
Publications - 241
Citations - 5335
Masaaki Nakai is an academic researcher from Kindai University. The author has contributed to research in topics: Titanium alloy & Ultimate tensile strength. The author has an hindex of 32, co-authored 232 publications receiving 4278 citations. Previous affiliations of Masaaki Nakai include Nagoya University & Tohoku University.
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Bioactive Ceramic Surface Modification of β-Type Ti-Nb-Ta-Zr System Alloy by Alkali Solution Treatment
TL;DR: In this paper, a reticulate structure with a considerable number of large cracks and mainly composed of sodium titanate and niobate films having a thickness of 400 nm to 800 nm is formed on the specimen surface of TNTZ after immersing in 3, 5, and 10kmol.
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Electrochemical surface treatment of a β-titanium alloy to realize an antibacterial property and bioactivity
Yusuke Tsutsumi,Yusuke Tsutsumi,Mitsuo Niinomi,Masaaki Nakai,Masaya Shimabukuro,Maki Ashida,Peng Chen,Hisashi Doi,Takao Hanawa +8 more
TL;DR: In this paper, micro-arc oxidation was performed on a β-type titanium alloy, namely, Ti-29Nb-13Ta-4.6Zr alloy (TNTZ), to improve not only its antibacterial property but also bioactivity in body fluids.
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Microstructural evolution and mechanical properties of biomedical Co-Cr-Mo alloy subjected to high-pressure torsion.
Murat Isik,Mitsuo Niinomi,Ken Cho,Masaaki Nakai,Huihong Liu,Hakan Yilmazer,Zenji Horita,Zenji Horita,Shigeo Sato,Takayuki Narushima +9 more
TL;DR: Electron backscatter diffraction analysis (EBSD) shows that a strain-induced martensitic transformation occurs by the HPT processing, which results in a decrease in the strength in the CCMHPT sample processed at εeq=45 by HPT.
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Reduction in anisotropy of mechanical properties of coilable (α+β)-type titanium alloy thin sheet through simple heat treatment for use in next-generation aircraft applications
Masaaki Nakai,Mitsuo Niinomi,Junko Hieda,Ken Cho,Yuya Nagasawa,Takashi Konno,Yoshinori Ito,Yoshio Itsumi,Hideto Oyama +8 more
TL;DR: In this article, a duplex heat-treatment of a (α+β)-type titanium alloy for use in aircraft applications was examined, in which the first heat treatment controls the volume fraction of the primary α phase and orientation of the acicular α phase in the two-phase area between primary α grains, whereas the second heat treatment stabilizes the α and β phases.
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Effects of TiB on the mechanical properties of Ti-29Nb-13Ta-4.6Zr alloy for use in biomedical applications
TL;DR: In this article, the microstructures and mechanical properties of β-type Ti-29Nb-13Ta-4.6Zr (TNTZ) were investigated.