Zinc Addition Effects on General Corrosion of Austenitic Stainless Steels in PWR Primary Conditions

QIAO Pei-peng; ZHANG Le-fu; LIU Rui-qin; JIANG Su-qing; ZHU Fa-wen

doi:10.7538/yzk.2010.44.06.0690

Atomic Energy Science and Technology > 2010 > 44(6): 690-693. > DOI: 10.7538/yzk.2010.44.06.0690

QIAO Pei-peng, ZHANG Le-fu, LIU Rui-qin, JIANG Su-qing, ZHU Fa-wen. Zinc Addition Effects on General Corrosion of Austenitic Stainless Steels in PWR Primary Conditions[J]. Atomic Energy Science and Technology, 2010, 44(6): 690-693. DOI: 10.7538/yzk.2010.44.06.0690

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Zinc Addition Effects on General Corrosion of Austenitic Stainless Steels in PWR Primary Conditions

School of Nuclear Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

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Received Date: December 31, 1899
Revised Date: December 31, 1899

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Zinc addition effects on general corrosion of austenitic stainless steel 316 and 304 were investigated in simulated PWR primary coolant without zinc or with 50 ppb zinc addition at 315 ℃ for 500 h. The results show that with the addition of zinc, the corrosion rate of austenitic stainless steel is effectively reduced, the surface oxide film is thinner, the morphology and chemical composition of surface oxide scales are evidently different from those without zinc. There are needlelike corrosion products on the surface of stainless steel 304.
- PWR,
- primary coolant,
- zinc addition,
- corrosion,
- oxide film

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