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材料と環境
Vol. 73 (2024), No. 10

材料と環境 Vol. 73 (2024), No. 10

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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Vol. 74 (2025)
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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. 73 (2024), No. 10

腐食防食技術者 vs. AI

深谷祐一

pp. 227-227

DOI:

10.3323/jcorr.73.227

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腐食防食技術者 vs. AI

Bibtex

Ris

Electrochemical Behavior of Mg-Mn Alloy in NaCl Solutions with Different Concentrations

Jian Tang, Muye Yang, Shigenobu Kainuma

pp. 230-233

DOI:

10.3323/jcorr.73.230

抄録

This study investigated the impact of NaCl concentration on the electrochemical performance of one kind of commercial Mg-Mn alloy （M1C）. Firstly, potentiodynamic polarization （PDP） tests were conducted to determine corrosion behavior of M1C in NaCl solutions with concentrations of 0.1 mass％, 0.5 mass％, 3.5 mass％, and 10.0 mass％. Additionally, electrochemical impedance spectroscopy （EIS） tests were performed to analyze the oxide film thickness across varying solution concentrations. The PDP results indicated that the corrosion rate of M1C increased with the increase of solution concentration. Furthermore, breakdown potential was observed in anodic polarization curves when the concentration of NaCl solution was over 0.5 mass ％. The EIS results showed that after 24h immersion, thickness of MgO film decreased with increasing NaCl concentration and then stabilized.

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Electrochemical Behavior of Mg-Mn Alloy in NaCl Solutions with Different Concentrations

Bibtex

Ris

NaCl水溶液中におけるWC-Ni-Cr-Mo系超硬合金の腐食挙動に及ぼすpHおよび電位の影響

伊藤暢晃, 山本涼太郎, 杉山憲一, 八鍬浩, 大井梓, 多田英司

pp. 234-243

DOI:

10.3323/jcorr.73.234

抄録

The corrosion resistance of WC-Ni-Cr-Mo cemented carbides in aqueous NaCl solutions at various pH values has been investigated by electrochemical measurements, surface observation and solution analysis. In acidic environments, WC passivates and binder metals selectively dissolve. In neutral environments, Cr and Ni passivate at corrosion potential and lower potentials than 0.5 V and WC either passivate or dissolve at a slower rate, while transpassive dissolution of Cr in the binder and dissolution of W occurs at potentials higher than 0.5 V. In a basic environment, the dissolution behaviour of the WC-Ni-Cr-Mo alloy is similar to that in a neutral environment, however, the dissolution of WC occurs significantly with increasing anodic potential from corrosion potential.

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論文タイトル

NaCl水溶液中におけるWC-Ni-Cr-Mo系超硬合金の腐食挙動に及ぼすpHおよび電位の影響

Bibtex

Ris

論文アクセスランキング

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

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材料と環境 Vol. 73 (2024), No. 10

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. 73 (2024), No. 10

腐食防食技術者 vs. AI

SNSによる共有

Electrochemical Behavior of Mg-Mn Alloy in NaCl Solutions with Different Concentrations

SNSによる共有

NaCl水溶液中におけるWC-Ni-Cr-Mo系超硬合金の腐食挙動に及ぼすpHおよび電位の影響

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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