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材料と環境
Vol. 59 (2010), No. 2

材料と環境 Vol. 59 (2010), No. 2

オンライン版ISSN:	1881-9664
冊子版ISSN:	0917-0480
発行機関:	Japan Society of Corrosion Engineering

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キーワードランキング

20 Jun. (Last 30 Days)

材料と環境 Vol. 59 (2010), No. 2

プロアクティブ

高守謙郎

pp. 35-35

DOI:

10.3323/jcorr.59.35

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Bibtex

Ris

淡水中における耐脱亜鉛腐食黄銅の溶解反応機構と耐食性

板垣昌幸, 芦江伸之, 本田英靖, 萩原光一, 上坂美治, 木皿儀隆康

pp. 43-49

DOI:

10.3323/jcorr.59.43

抄録

Polarization curves of brass, dezincing-resistant brass and bronze were measured by channel flow double electrode (CFDE), and the electrochemical property of dezincing-resistant brass was investigated. By using CFDE, Cu(I) and Cu(II) ions dissolved from the copper-alloy electrode can be determined simultaneously during the measurement of polarization curve. The anodic polarization curve of brass was divided into two potential regions, namely, selective dissolution of zinc below 0 V vs. SSE (region I) and both dissolutions of copper and zinc above 0 V vs. SSE (region II). In the case of anodic polarization curve of dezincing-resistant brass ranked as type I by JBMA T303 test, the current was small in the region I, and the dissolution ratio of zinc was small in the region II. On the other hand, the corrosion test under the fresh water flow was carried out for brass, dezincing-resistant brass, bronze and SUS316. As the result, the dissolution morphology of dezincing-resistant brass ranked as type I tended to general corrosion even in the case that the brass showed the dezincing corrosion. In addition, the short circuit between the dezincing-resistant brass ranked as type I and SUS316 didn’t show galvanic corrosion since the corrosion potential of the dezincing-resistant brass ranked as type I is closed to that of SUS316 in the present test water.

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淡水中における耐脱亜鉛腐食黄銅の溶解反応機構と耐食性

Bibtex

Ris

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材料と環境 Vol. 59 (2010), No. 2

キーワードランキング

blast furnace

electoromagnetic

melt

mg treatment inclusion

ステンレス鋼 ti-ni

electoromagnetic segregation

magnethydrodynamics

technol. plast

thermo dynamics and kinetics of coal gasification in a liquid iron bath

岡本

材料と環境 Vol. 59 (2010), No. 2

プロアクティブ

SNSによる共有

淡水中における耐脱亜鉛腐食黄銅の溶解反応機構と耐食性

SNSによる共有

論文アクセスランキング

Wettability of CaS Against Molten Iron at 1873 K

Perspectives on the Promising Pathways to Zero Carbon Emissions in the Steel Industry toward 2050

New Electromagnetic Flow Control System for Optimization of Molten Steel Flow in Continuous Casting Mold

Preface to the Special Issue on “Challenges to Comprehension for Phenomena of Degradation, Softening, and Melting of Raw Materials in Hydrogen-enriched Ironmaking Process”

Effect of Al in the coating layer of Zn-coated steel sheet on Zn oxidation during hot-stamping heating

溶鋼中での各種酸化物系介在物の成長・除去と凝集

Investigation of the Effects of Mechanical Properties and Carbon Content on Cold Cracking in Laser Welds of High-strength Thin Steel Sheets

Effect of Water on the Non-Isothermal Hydrogen-Water Reduction of Industrial Hematite Pellets

Low Temperature Reduction Disintegration Mechanism of Self-fluxing Pellet under High Hydrogen Condition of Blast Furnace at 500°C

Effects of alloying-element addition on hydrogen diffusion and hydrogen absorption in Ni

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