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Article10.5006/c2004-04222

Effect of Heat Treatment and Tin Content on the Corrosion of Zirconium 702 in Sulfuric Acid

Derrill R. Holmes-2004-03-27
2

TL;DRAbstract

Abstract The effect of heat treatment and tin content on corrosion of Zirconium 702 (R60702) in sulfuric acid was studied. The effect of second phase particles on corrosion resistance of zirconium in sulfuric acid is explained. The benefit of heat treatment is examined. Heat treatments included treatment at 625°C for 1 hour, 2 hours, and 4 hours; 700°C for 1 hour and 2 hours; 770°C for 1 hour; and 788°C for 0.5 hours. Tin variables were 2400-ppm tin and 1400-ppm tin. An updated 5-mpy (0.127 mm/y) isocorrosion curve for Zirconium 702 in sulfuric acid is presented.

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Abstract The effect of heat treatment and tin content on corrosion of Zirconium 702 (R60702) in sulfuric acid was studied. The effect of second phase particles on corrosion resistance of zirconium in sulfuric acid is explained. The benefit of heat treatment is examined. Heat treatments included treatment at 625°C for 1 hour, 2 hours, and 4 hours; 700°C for 1 hour and 2 hours; 770°C for 1 hour; and 788°C for 0.5 hours. Tin variables were 2400-ppm tin and 1400-ppm tin. An updated 5-mpy (0.127 mm/y) isocorrosion curve for Zirconium 702 in sulfuric acid is presented.

Keywords

Sulfuric acidZirconiumTinCorrosionMaterials scienceMetallurgyZirconium alloyInorganic chemistry

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