Crevice Corrosion of Several Supper Stainless Steels in the Simulated LT-MED Environment
来源期刊:Acta Metallurgica Sinica2018年第11期
论文作者:Chang-Gang Wang Xiao-Fang Li Jie Wei Xin Wei Fang Xue Rong-Yao Ma Jun-Hua Dong Wei Ke
文章页码:1137 - 1147
摘 要:Susceptibility and morphological characteristics of crevice corrosion for SS316, SS904 L, SS254 sMo and SS2507 in the simulated low-temperature multi-effect distillation environment were investigated by cyclic polarization test, scanning electron microscope and laser microscope. The results show that the crevice corrosion resistance of four kinds of stainless steel is ranked as SS254 sMo ≈ SS2507>SS316> SS904 L. There are ‘‘cover’’ structures over the edge of active crevice corrosion regions of SS904 L, SS254 sMo and SS2507, but SS316 is an exception. Galvanic corrosion characteristics appeared in the crevice of duplex supper stainless steel SS2507.
Chang-Gang Wang,Xiao-Fang Li,Jie Wei,Xin Wei,Fang Xue,Rong-Yao Ma,Jun-Hua Dong,Wei Ke
Institute of Metal Research, Chinese Academy of Sciences
摘 要:Susceptibility and morphological characteristics of crevice corrosion for SS316, SS904 L, SS254 sMo and SS2507 in the simulated low-temperature multi-effect distillation environment were investigated by cyclic polarization test, scanning electron microscope and laser microscope. The results show that the crevice corrosion resistance of four kinds of stainless steel is ranked as SS254 sMo ≈ SS2507>SS316> SS904 L. There are ‘‘cover’’ structures over the edge of active crevice corrosion regions of SS904 L, SS254 sMo and SS2507, but SS316 is an exception. Galvanic corrosion characteristics appeared in the crevice of duplex supper stainless steel SS2507.
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