Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Katsumi Koyama"'
Autor:
Koji Ichitani, Katsumi Koyama
Publikováno v:
Journal of Japan Institute of Light Metals. 62:212-218
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::02f5bdc8d5a39111b3287332f8604467
https://doi.org/10.2464/jilm.62.212
https://doi.org/10.2464/jilm.62.212
Autor:
Koji Ichitani, Yoshio Suzuki, Masakazu Kobayashi, Keisuke Minami, Hiroyuki Toda, Katsumi Koyama, Kentaro Uesugi
Publikováno v:
Acta Materialia. 57:4391-4403
Synchrotron X-ray microtomography was used to observe the shrinkage and annihilation behaviors of hydrogen micropores in three dimensions during hot and cold plastic deformation of an Al–Mg alloy. Whether complete healing of micropores is achieved
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::458e3d8cb34e3a874a538c9639ac85c2
https://doi.org/10.1016/j.actamat.2009.06.012
https://doi.org/10.1016/j.actamat.2009.06.012
Publikováno v:
Materials Science Forum. :333-338
To restrain global warming, weight reduction of autobodies is needed for fuel saving and discharge of carbon dioxide (CO2) gas. Usage of light weight aluminum alloy sheets is efficiency for the weight reduction, but the less formabilities comparing w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c95e12fed033cce4c9e4cb80583dfd12
https://doi.org/10.4028/www.scientific.net/msf.539-543.333
https://doi.org/10.4028/www.scientific.net/msf.539-543.333
Publikováno v:
Materials Science Forum. :501-506
In commercial aluminum alloys, Zr is recognized as an important additional element improving their properties such as strength, corrosion resistivily, and so on. It forms very fine particles of the metastable Al3Zr phase with L12 ordered configuratio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce0a75ca881375deb1ee21c7aab27ca3
https://doi.org/10.4028/www.scientific.net/msf.519-521.501
https://doi.org/10.4028/www.scientific.net/msf.519-521.501
Autor:
Tetsuya Anzai, Masami Nirei, Tsutomu Mizuno, Hajime Yamada, Katsumi Koyama, Mitsuhiro Iwadare
Publikováno v:
IEEJ Transactions on Industry Applications. 119:327-332
High-speed and high-precision hydraulic valves have been widely required in the industry. The authors have been developed the hydraulic servo valve (LSV) using a linear DC motor (LDM). This paper describes a design method of the magnetic circuit and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f20367cfa81bc1cc17bd1d0d7bd99ff4
https://doi.org/10.1541/ieejias.119.327
https://doi.org/10.1541/ieejias.119.327
Publikováno v:
Journal of the Japan Institute of Metals. 62:790-795
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1104682b9d02366894b3b14566d012d6
https://doi.org/10.2320/jinstmet1952.62.9_790
https://doi.org/10.2320/jinstmet1952.62.9_790
Publikováno v:
Journal of the Japan Institute of Metals. 62:742-747
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::90495351b00df158063523aad751b72f
https://doi.org/10.2320/jinstmet1952.62.8_742
https://doi.org/10.2320/jinstmet1952.62.8_742
Publikováno v:
Metallurgical and Materials Transactions A. 28:2291-2295
Air-melted and argon-melted Al-5 mass pct Mg alloy specimens containing impurity hydrogen of 0.27 and 0.04 mass ppm, respectively, were tensile-tested at ambient temperature. The ductility and fracture processes were compared in the two specimens, an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8bee4f161f5abfb1facf2c0eef2b791d
https://doi.org/10.1007/s11661-997-0186-3
https://doi.org/10.1007/s11661-997-0186-3
Publikováno v:
Scripta Materialia. 35:695-698
Environmental embrittlement in most metallic materials is known to be caused by hydrogen penetration from the atmosphere into the material under tensile stress. The authors have shown the location of internal hydrogen atoms in the microstructure of s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::47fafd494875e1fcf31ead63d30fe61a
https://doi.org/10.1016/1359-6462(96)00200-x
https://doi.org/10.1016/1359-6462(96)00200-x
Publikováno v:
Materials Science Forum. :1467-1472
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ca121072942675f5d7e2ac0dc86e05cf
https://doi.org/10.4028/www.scientific.net/msf.217-222.1467
https://doi.org/10.4028/www.scientific.net/msf.217-222.1467