Analysis of the Initial Stage of Localized Corrosion on Zn and Zn Alloy Coated Steels by Photon Rupture Method
スポンサーリンク
概要
- 論文の詳細を見る
A photon rupture method, film removal by a focused pulse of pulsed Nd-YAG laser beam irradiation, has been developed as it enables oxide film stripping at extremely high rates without contamination from the film removal tools. In the present study, Zn and Zn-5mass%Al alloy coated steel specimens covered with protective nitrocellulose film were irradiated with a focused pulse of a pulsed Nd-YAG laser beam at a constant potential in 0.5 kmol m-3 H3BO3-0.05 kmol m-3 Na2B4O7 (pH=7.4) with/without 0.05 kmol m-3 of chloride ions to investigate the initial stage of localized corrosion. At low potentials, both samples reformed oxide film after the nitrocellulose films were removed by this method. The oxide film formation kinetics of Zn-55mass%Al follow an inverse logarithmic law, in agreement with Cabrera-Mott theory. However, at high potentials, localized corrosion producing corrosion products occured at the area where nitrocellulose film was removed. The dissolution current of the Zn coated steel samples is higher than that of Zn-5mass%Al coated samples at the same applied potential.
- 2005-01-15
著者
-
Sakairi Masatoshi
Graduate School Of Engineering Hokkaido University
-
Takahashi Hideaki
Graduate School Of Engineering Hokkaido University
-
ITABASHI Kazuma
NTT DoCoMo Hokkaido Inc.
-
Takahashi Hideaki
Graduate School of Engineering, Hokkaido University
関連論文
- Corrosion of Al-Sn-Bi alloys in alcohol at high temperatures. Part I: Effects of the metallurgical structure of the alloys and the metal salt additions to alcohol
- Metallization of Oxide/Hydroxide Film of Aluminum : the Palladium Activation Techniques
- Analysis of the Initial Stage of Localized Corrosion on Zn and Zn Alloy Coated Steels by Photon Rupture Method
- Formation of Nanoporous Anodic Oxide Films on Ti-Al Microchannel Walls
- Corrosion of Al–Sn–Bi alloys in alcohols at high temperatures. Part II: Effect of anodizing on corrosion
- Age-Related Changes in Physical Function in Community-Dwelling People Aged 50-79 Years
- Growth of porous type anodic oxide films at micro-areas on aluminum exposed by laser irradiation
- Influence of Zinc Ions on Initial Stage of Localized Corrosion of Zn and Zn-Al Alloy Coated Steels with Photon Rupture Method
- Microfabrication of an anodic oxide film by anodizing laser-textured aluminium
- Initial stage of localized corrosion in artificial pits formed with photon rupture on Zn-5 mass% Al alloy-coated steel
- Initial Stage of Localized Corrosion in Artificial Pits Formed with Photon Rupture on 55mass%Al-Zn Coated Steels
- ELECTROCHEMICAL RANDOM SIGNAL ANALYSIS DURING GALVANIC CORROSION OF ANODIZED ALUMINUM ALLOY
- Anodization of the inner wall of the microchannel formed in sintered aluminum body (Selected papers from the 5th ISEM'10-Kyoto, 2010)
- ゾル・ゲルコーティングとアノード酸化によるAl-(Zr,Si and BaTiO3)複合酸化物皮膜の生成--新規な高性能アルミニウム電解コンデンサの開発を目指して
- ゾル・ゲル法によりZr酸化物を被覆したアルミニウムのアノード酸化(1)アノード酸化皮膜の成長に及ぼす被覆加熱処理の影響
- Initial Stage of Localized Corrosion of Al-9 mass% Si Coated Steels after Removal with a Photon Rupture Method in Solutions
- Dealloying of Cu-Zn Alloy Microchannel Lining Layers for Producing Microporous Catalyst
- Effect of Anions on Initial Stage of Localized Corrosion of Zn-55 mass% Al Alloy Coated Steels by Photon Rupture Method and Anodizing
- Anodization of the Inner Wall of the Microchannel Formed in Sintered Aluminum Body
- Alkali Leaching of Ni-Al Alloy Microchannel Lining Layers
- A perspective on a potential for East Asian Linkage in distance higher education
- Anodic Oxidation Behavior of Al-Zn Alloy Lining Layer Produced by a Sacrificial-Core Method (Selected Papers from the 6th ISEM '11-Sendai/Kansai, 2011)
- Fabrication of Cu Micro-rods with Co-axial Dual Capillary Solution Flow Type Droplet Cell and Electrodeposition with the Cell
- Nb2O5 Deposition on Aluminum from NbCl5-used Sol and Anodizing of Nb2O5-coated Al
- Micro- and Nano-Technologies Based on Anodizing of Aluminum—Combination of Laser Irradiation with Electrochemical Process