K. Borko, F. Pastorek, Jacková M. Neslušan, S. Fintová, B. Hadzima
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引用次数: 1
Abstract
Abstract The actual industrial trend is focused on weight reduction of constructions while preserving strength properties. For this purpose, conventional steel are replaced by high strength steels.. The aim of this study was to evaluate the effects of mechanical surface pre-treatment on corrosion resistance of high strength low alloy steel Domex 700 before and after surface treatment by manganese phosphating. Tested environment was 0,1M NaCl solution. Evaluation of mechanical pre-treatment and phosphating effects on corrosion resistance was realized by electrochemical measurements: potentiodynamic polarization measurements (Tafel analysis) and electrochemical impedance spectroscopy (equivalent circuits). From resulsts it is possible to conclude, that creation of manganese phosphate layer on ground and shot peened steel surface significantly increases the corrosion resistance of Domex 700 steel.
实际的工业发展趋势是在保持结构强度的同时减轻结构的重量。为此目的，高强度钢取代了传统钢。本研究的目的是评价机械表面预处理对高强度低合金钢Domex 700表面锰磷化处理前后耐蚀性的影响。测试环境为0.1 m NaCl溶液。通过电化学测量:动电位极化测量(Tafel分析)和电化学阻抗谱(等效电路)来评价机械预处理和磷化对耐蚀性的影响。从结果可以得出结论，在地面和喷丸钢表面形成的磷酸锰层显著提高了Domex 700钢的耐腐蚀性。
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