Pitting Corrosion of 13Cr Steel in Oxygen-free Completion Fluids of Organic Salt
来源期刊：Acta Metallurgica Sinica2013年第3期
论文作者：Lining XU Yao MENG Yunguang SHI Yan LIU
文章页码：271 - 276
摘 要：Corrosion behavior of 13Cr steel in oxygen-free completion fluids of the organic salt at 180 ℃ was studied. Cross-sectional morphologies of the corrosion products were observed by scanning electron microscopy. Energy dispersive spectrum （EDS） was used to study the element distribution of the corrosion product inside and outside the pits. The results show that the organic salt causes severe pitting corrosion of 13Cr steel. The width and depth of the pits increase simultaneously when the test duration prolongs, and potassium enriches inside the pits.
Lining XU，Yao MENG，Yunguang SHI，Yan LIU
Key Laboratory for Environmental Fracture (MOE),Institute of Advanced Materials and Technology, University of Science and Technology Beijing
摘 要：Corrosion behavior of 13Cr steel in oxygen-free completion fluids of the organic salt at 180 ℃ was studied. Cross-sectional morphologies of the corrosion products were observed by scanning electron microscopy. Energy dispersive spectrum （EDS） was used to study the element distribution of the corrosion product inside and outside the pits. The results show that the organic salt causes severe pitting corrosion of 13Cr steel. The width and depth of the pits increase simultaneously when the test duration prolongs, and potassium enriches inside the pits.
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