M
Masakazu Okazaki
Researcher at Nagaoka University of Technology
Publications - 128
Citations - 948
Masakazu Okazaki is an academic researcher from Nagaoka University of Technology. The author has contributed to research in topics: Superalloy & Fracture mechanics. The author has an hindex of 14, co-authored 128 publications receiving 795 citations. Previous affiliations of Masakazu Okazaki include Nagaoka University.
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Fatigue crack propagation behavior in friction stir welding of AA6063-T5: Roles of residual stress and microstructure
TL;DR: In this paper, the behavior of fatigue crack which was propagated at some representative areas in the friction stir welded (FSWed) joint of aluminum alloy 6063-T5 was studied.
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Thermo-mechanical fatigue failure of a single crystal Ni-based superalloy
TL;DR: In this article, the behavior of thermo-mechanical fatigue (TMF) of a single crystal Ni-based superalloy, CMSX-4, compared with that of isothermal low cycle fatigue (LCF), was studied, under various test conditions, where the experimental variables were strain rates, strain ratio, temperature range, and strain/temperature phase angle.
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Damage repair in CMSX-4 alloy without fatigue life reduction penalty
TL;DR: In this paper, the microstructural changes in a single-crystal Ni-base superalloy, CMSX-4, that might occur during the processes of repair and recoating of hot section components for advanced gas turbines were studied.
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Adhesion strength of ceramic top coat in thermal barrier coatings subjected to thermal cycles: Effects of thermal cycle testing method and environment
Masakazu Okazaki,Satoshi Yamagishi,Yasuhiro Yamazaki,Kazuhiro Ogawa,Hiroyuki Waki,Masayuki Arai +5 more
TL;DR: In this paper, the adhesion strength of the top coat of thermal barrier coatings (TBCs) subjected to thermal cycles under several different test conditions was analyzed. But the results of the test results clearly demonstrated that the top coating was significantly changed by the application of thermal cycles and by isothermal exposure.
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Role of microstructure on the fatigue crack propagation behavior of a friction stir welded Ti–6Al–4V
TL;DR: In this article, the role of residual stresses and inhomogeneous microstructure in fatigue crack propagation behavior of a friction stir welded Ti-6Al-4V alloy was investigated.