General Corrosion Resistance Index (<i>GI</i>) of Stainless Steels in Various Concentrations of Sulfuric Acid Solution

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  • 各種濃度の硫酸水溶液中におけるステンレス鋼の耐食性指標
  • カクシュ ノウド ノ リュウサン スイヨウエキチュウ ニ オケル ステンレス
  • General Corrosion Resistance Index (GI) of Stainless Steels in Various Concentrations of Sulfuric Acid Solution

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Description

In order to generalize GI (General Corrosion Resistance Index) derived from the effects of alloy contents on the corrosion rate of stainless steel, the GI for Fe-Cr-Ni-Mo-Cu system stainless steels in various concentrations of sulfuric acid was introduced. It was clarified that the type of functional formula between general corrosion rate and GI did not change with the concentration of sulfuric acid. The coefficient of alloying elements in GI equation, however, varied depending upon the sulfuric acid concentration, and also the hydrosulfate ion and hydrogen ion dissociated from the sulfuric acid affected both reaction of metal-dissolution and of hydrogen-ion-reduction.

Journal

  • Corrosion Engineering

    Corrosion Engineering 42 (11), 708-713, 1993

    Japan Society of Corrosion Engineering

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