Manabu Noguchi
Ebara Corporation
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Publication
Featured researches published by Manabu Noguchi.
Journal of Thermal Spray Technology | 2013
Mathias Galetz; Johannes Thomas Bauer; Michael Schütze; Manabu Noguchi; Hiromitsu Cho
The accelerating effect of heavy metal compounds on the corrosive attack of boiler components like superheaters poses a severe problem in modern waste-to-energy plants (WTPs). Coatings are a possible solution to protect cheap, low alloyed steel substrates from heavy metal chloride and sulfate salts, which have a relatively low melting point. These salts dissolve many alloys, and therefore often are the limiting factor as far as the lifetime of superheater tubes is concerned. In this work the corrosion performance under artificial salt deposits of different coatings, manufactured by overlay welding, thermal spraying of self-fluxing as well as conventional systems was investigated. The results of our studies clearly demonstrate the importance of alloying elements such as molybdenum or silicon. Additionally, the coatings have to be dense and of a certain thickness in order to resist the corrosive attack under these severe conditions.
Materials Science Forum | 2006
Manabu Noguchi; Kei Matsuoka; Hideyuki Sakamoto; Shigeki Ueta; Yoshiyuki Sawada
After examining practical structural materials for use in the high-temperature environments of waste incinerators, it was found that a Ni-Cr-W casting alloy is promising. However, the corrosion reaches its peak in the vicinity of 900°C. This peak is related to the behavior of chlorides that form in the interior of the alloy. As the chlorides continuously generate and decompose, the Cl recycles, accelerating corrosion. It is thought that when the temperature rises, the chlorides vaporize outside the alloy, suppressing Cl recycling and thus reducing the amount of corrosion. Adding Al to the alloy generates highly volatile AlCl3, making it possible to prevent the accumulation of chlorides in the vicinity of 900°C and lower the corrosion peak. As a result of conducting exposure testing for a year at an actual incinerator, it was demonstrated that adding Al is an effective way to improve corrosion resistance.
Archive | 2004
Toshio Narita; Shigenari Hayashi; Hiroshi Yakuwa; Manabu Noguchi; Matsuho Miyasaka
Archive | 2001
Manabu Noguchi; Kei Matsuoka; Hiroshi Yakuwa; Akira Uchino; Hideyuki Sakamoto; Michio Okabe; Yoshiyuki Sawada; Shigeki Ueta
Materials and Corrosion-werkstoffe Und Korrosion | 2014
Mathias Galetz; Johannes Thomas Bauer; M. Schütze; Manabu Noguchi; C. Takatoh; H. Cho
Archive | 2001
Shigenari Hayashi; Matsusuke Miyasaka; Toshio Narita; Manabu Noguchi; Hiroshi Yakuwa; 浩 八鍬; 松甫 宮坂; 敏夫 成田; 重成 林; 学 野口
Fuel Processing Technology | 2016
Juan Chen; Yoshihiko Ninomiya; Hiroshi Naganuma; Yoriaki Sasaki; Manabu Noguchi; Hiromitsu Cho; Yasuaki Ueki; Ryo Yoshiie; Ichiro Naruse
Archive | 2008
Manabu Noguchi; Yasuhiko Saijo; Kenichi Semitani; Yoshinobu Uragami; Hiroshi Yakuwa; 浩 八鍬; 嘉信 浦上; 健一 蝉谷; 康彦 西條; 学 野口
Zairyo-to-kankyo | 2005
Yoshimitsu Shibata; Hidenori Takahashi; Manabu Noguchi; Toshiyuki Takashima; Toshio Narita
Archive | 2004
Kei Matsuoka; Manabu Noguchi; Hideyuki Sakamoto