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corrosion for Mg-0.25Y and pitting corrosion for Mg-8Y and Mg-15Y, respectively. The main solid corrosion products were Mg(OH)2 and Mg2(OH)3C1·4H2O. Key words: Mg-Y alloy; polarization curves; pitting... of pitting corrosion, because of the formation of bigger and homogeneously distributed cathodic phases Mg24Y5, as shown in Fig. 4(c). When the addition of yttrium increased up to 15%, the corrosion......
Effect of Short-Time Aging on the Pitting Corrosion Behavior of a Novel Lean Duplex Stainless Steel 2002Tian-Yi Sun,Yan-Jun Guo,Yi-Ming Jiang,Jin Li摘 要:The effect of short-time aging in the temperature range between 400 and 1000 °C on the pitting corrosion behavior and mechanical property of a novel lean duplex stainless steel(LDSS) 2002......
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the latter for the pitting corrosion. The different influences of SO2-4- and Cl- ions on the corrosion type of copper tube may be attributed to that the radius of SO2-4- ion is much larger than that of Cl- ion. Meanwhile the results also indicated that SO2-4- inhibits the pitting corrosion caused by Cl- and Cl- inhibits the general corrosion initiated by SO2-4- due to their competitive adsorption......
history of pitting corrosion-intergranular corrosion-exfoliation corrosion, and the maximum corrosion depth is in conformity to normal distribution. The accelerated corrosion test was carried out... data. The law indicates two apparent corrosion stages of high strength aluminum alloy section material: pitting corrosion and intergranular corrosion/exfoliation corrosion. The test results agree......
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on high-strength aluminum alloy can raise evidently the resistance of atmospheric corrosion. Cl- can promote pitting generation on the oxide film of LY12 when exists, LY12 can react much intensely... Micrograph and corrosion product of LY12 aluminum alloy without cladding SEM images of sample exposed to 0.02 mol/L NaHSO3 for different time are shown in Fig.2. The results show that pitting corrosion can......
that the open circuit corrosion potential and the pitting potential shifted in the active (negative) direction with increasing gallium content,while corrosion rate and pitting occurrence factor...% in the pure aluminum. 关键词:Al-Ga alloy; polarization curve; immersion test; pitting corrosion; [全文内容正在添加中] ......
THE RELATIONSHIP BETWEEN PITTING SUSCEPTIBILITY AND INCLUSIONS IN CARBON STEELS IN ARTIFICIAL SEAWATER X.D.Kong1,W.S.Chang2,X.Q.Chen2,J.X.Zheng1,D.B.Chen2 (1.Department of Material Science... steels have been studied by using anodic polarization test and microscope observation. The results show that pitting susceptibilities are related to the types and shapes of inclusions which are the sites......
film after drying in the air, and the flow corrosion process can be successively defined as uniform pitting corrosion, expansion, formation of corrosion film, solution of surface products and pitting...Effects of rotating electromagnetic on flow corrosion of copper in seawaterLI Ji-nan, ZHANG Peng, GUO Bin(School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001......