Wear-corrosion mechanism of stainless steel in chloride media |
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| Affiliation: | 1. Helmholtz Zentrum München, Analytical Biogeochemistry, Ingolstädter Landstraße 1, 85764 Neuherberg, Germany;2. TU München, Lehrstuhl für Analytische Lebensmittelchemie, Wissenschaftszentrum Weihenstephan, Alte Akademie 10, 85354 Freising, Germany;3. Uniklinik Köln, Institut I für Pharmakologie, Zentrum für Pharmakologie, Gleueler Straße 24, 50931 Köln, Germany;4. Uniklinik Köln, Klinik und Poliklinik für Neurologie und Psychiatrie, Kerpener Str. 62, 50924 Köln, Germany;5. Universitätsspital Zürich, Klinik für Klinische Pharmakologie und Toxikologie, Rämistraße 100, 8091 Zürich, Switzerland;1. Mechanical Engineering Department, University of Delaware, DE, USA;2. Army Research Laboratory, Aberdeen Proving Ground, MD, USA;3. Center for Composite Materials, University of Delaware, DE, USA;1. Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing 100048, PR China;2. State Key Laboratory of Structural Chemistry in China, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, PR China;1. Department of Physics, St. Joseph''s College (Autonomous), Tiruchirappalli 620 002, Tamilnadu, India;2. Department of Physics, St. Xavier''s College (Autonomous), Palayamkottai 627 002, Tamilnadu, India;3. Department of Physics, Caauvery College of Engineering & Technology, Perur, Tiruchirappalli 639 103, Tamilnadu, India;1. Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA;2. Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA;1. School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, China;2. Academy of Fundamental and Interdisciplinary Sciences, Harbin Institute of Technology, Harbin 150001, China |
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| Abstract: | A laboratory technique to study the combined effects of mechanical and electrochemical changes during a wear process in a corroding environment is presented. Cathodic protection is beneficial because it stops corrosion, and the wear is merely mechanical. At anodic potentials, chemical reactions lead to a wear rate almost twice the wear rate under cathodic protection. The difference between the two levels represents the rate of corrosive wear. A model is proposed for the corrosive wear based on the film growth rate and the rate of removal of the oxide layer. Experimental results verify this model. |
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