Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Yuzo Daigo"'
Publikováno v:
Materials Today Communications. 35:105938
Autor:
Kosuke Kuwabara, Tatsuya Kimura, Meichuan Chen, Hiroshi Shiratori, Kazuya Shinagawa, Yuzo Daigo
Publikováno v:
Advanced Engineering Materials. 24:2101272
Publikováno v:
JOM. 69:1381-1388
Commercial metals and alloys like carbon steels, stainless steels, and nickel-based super alloys frequently encounter the problem of environmentally assisted cracking (EAC) and resulting failure in engineering components. This article aims to provide
Autor:
Shojiro Ochiai, Akiko Yamamoto, Masahiro Wada, Kenichi Omori, Koichi Kita, Komei Kato, Yuzo Daigo
Publikováno v:
Materials Science and Engineering: C. 33:2736-2743
Novel 316 L stainless steel (SS) foam with 85% porosity and an open pore diameter of 70–440 μm was developed for hard tissue application. The foam sheet with a 200-μm diameter had superior cell proliferation and penetration as identified through
Autor:
Shojiro Ochiai, Kenichi Omori, Takeshi Isobe, Akiko Yamamoto, Yuzo Daigo, Komei Kato, Suguru Matano
Publikováno v:
MATERIALS TRANSACTIONS. 53:724-732
We had developed novel titanium (Ti) foam sheet with original slurry foaming method. The products had an average pore size under 500µm in diameter, volumetric porosities over 80%, and chemical composition corresponding to grade 4 in ISO 5832-2; Impl
Publikováno v:
CORROSION. 63:1085-1093
It was reported that the chromium ion originated from the autoclave material (Ni-44Cr-1Mo) deposited on the specimen surface as chromium oxyhydroxide (CrOOH), and the protective chromium oxide layer mitigated corrosion of the alloys tested in supercr
Publikováno v:
CORROSION. 63:277-284
Seven kinds of corrosion tests were carried out on thirteen kinds of nickel-based alloys in subcritical and supercritical water containing 0.01 mol/kg sulfuric acid (H2SO4) and 800 ppm oxygen (O2) using a Ni-44Cr-1Mo autoclave. The obtained corrosion
Autor:
Yuzo Daigo, Yutaka Watanabe
Publikováno v:
Materials Science Forum. :213-220
Corrosion properties were investigated on stainless steels and Ni base alloys in supercritical water containing 0.01mol/kg-H2SO4 at 400°C/30MPa as a function of oxygen concentration ranging from 3ppb to 800ppm. Alloys with high Fe content showed an
Publikováno v:
CORROSION. 62:174-181
Corrosion-resistant Ni-based alloys are thought to be strong candidates as a structural material for chemical processes using supercritical water (SCW). In recent years, Cr was considered as the most important alloying element to improve corrosion re
Publikováno v:
Key Engineering Materials. :1031-1036
It was previously demonstrated by the authors that density of water and the density-related physical properties of water are ones of the major governing factors of corrosion of metals in supercritical aqueous solutions. The water density is expected