- 期刊
沃斯田體系不銹鋼於氯化鈉誘發之腐蝕形態研究
The Study of NaCl-induced Corrosion Morphologies of Austenitic Stainless Steels
並列摘要
Three austenitic Fe-Cr-Ni alloys(253MA, 310SS and 353MA)coated with 2mg/cm^2 NaCl have been oxidized at 850℃ in a slow airflow. The results indicated that the initial NaCl coating accelerated oxidation of alloys by oxychlorination and chlorination/oxygen-substitution cyclicreactions, resulting in the formation of thick scale and an interconnecting viod network in the substrate. Voids were tunnels in shape. Some were filled with corrosion products and some corrosion products were formed on the walls of the voids. The thickness of metal loss was related to the consumption of both chromium and iron in the alloy substrate. In this study, 310 revealed better corrosion resistance after 36hr exposure, followed by 353MA,and the worst was 253MA.
延伸閱讀
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