Zobrazeno 1 - 10 of 15 pro vyhledávání: '"Akio Niikura"'
4
Visualization of metal flow and adhering of aluminum alloy in three-layer clad rolling
Autor: Gaku Torikai, Mineo Asano, Yoshinori Yoshida, Akio Niikura
Publikováno v: Procedia Manufacturing. 15:144-151
Metal flow and adhering in a three-layer aluminum clad sheet are visualized in roll bonding. It is shown that an interface condition between a core and two liner materials changes from slip mode to stick mode. It is recognized that oxide films are br
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c8612f1b5ba0fd42f4175bcacf19287a
https://doi.org/10.1016/j.promfg.2018.07.188
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5
Aging Process during Creep Deformation in an Al-Mg-Si Alloy Affected by Pre-Aging Condition
Autor: Akio Niikura, Goroh Itoh, Yoshikazu Suzuki, Makoto Ando
Publikováno v: Materials Science Forum. :261-266
Creep behavior of an Al-0.3%Mg-0.5%Si alloy affected by pre-aging condition was investigated to obtain fundamental knowledge on the thermal stability in the service temperature range for the precipitation-hardened aluminum heat-exchanger. The alloy w
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f0e71814d2e961e0cd1e5d8693e4308c
https://doi.org/10.4028/www.scientific.net/msf.794-796.261
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8
Recrystallization Behaviour in Twin-Roll Continuous Cast Al-Fe-Ni Alloy
Autor: Akira Kawahara, Go Kimura, Akio Niikura, Takeyoshi Doko
Publikováno v: Materials Science Forum. :1635-1640
Factors controlling the recrystallization of a continuous cast Al-Fe-Ni alloy were investigated by analyzing microstructure, grain structure, texture, and electron backscattering patterns. The texture of an as-rolled sample heated at 400°C was simil
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2e00bfd6507bad4db5a4aaeb1a7f7cd4
https://doi.org/10.4028/www.scientific.net/msf.519-521.1635
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9
Low Temperature Superplasticity in a Severely Rolled Sheet of an Al-4.2Mass%Mg Alloy
Autor: Shinya Sasaki, Yoichiro Bekki, Hideo Watanabe, Yoshimasa Takayama, Hajime Kato, Akio Niikura
Publikováno v: Materials Science Forum. :165-170
Superplasticity at relatively low temperatures around 573K has been investigated a severely rolled sheet of an Al-4.2mass%Mg alloy. It was already found that fine recrystallized grains of about 6μm was gotten by annealing for 120s at 573K in a salt
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a9f7b5aa0661b6818e3dd9744bc73ec9
https://doi.org/10.4028/www.scientific.net/msf.357-359.165
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10
Refinement of Recrystallized Grains in Al-Mg Alloys Induced by Super-High-Reduction Rolling and Consequent Annealing
Autor: Yoichiro Bekki, Akio Niikura
Publikováno v: Materials Science Forum. :871-878
Refinement of recrystallized grains and its effects on mechanical properties have been studied in Al-Mg alloys (5xxxx aluminum alloys). By employing cold-rolled method with super-high-reduction ratio beyond 99% and consequent annealing at 573K, the g
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bfedb7e1921a6a8cb5edd8eb60f884b5
https://doi.org/10.4028/www.scientific.net/msf.331-337.871
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