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enriched Pb promotes initial pitting sites and consequently improves dense distribution of etching sites. Therefore, the more homogenous corrosion pores in sample 0.5Pb (Fig.1(d)) should be induced... are accumulated around the surface area, could provide large number of sites for pitting corrosion. This should be the reason that the amount of corrosion pores is much denser (Fig.1(e) and (g)) than......
.scientific. net/JNanoR.51.92. [29] NAKAI T, MATSUSHITA H, YAMAMOTO N, ARAI H. Effect of pitting corrosion on local strength of hold frames of bulk carriers (1st report) [J]. Marine Structure, 2004, 17: 403-432... J. Cent. South Univ. (2021) 28: 58-71 DOI: https://doi.org/10.1007/s11771-021-4586-0 Corrosion fatigue crack growth mechanisms in welded joints of marine steel structures XU Qian(徐倩), SHAO Fei(邵飞......
foil surface[1]. Their surface density is of the order of 105-107 /cm2. The tunnel etching of Al foil is a typical progress of pitting corrosion. It not only depends on properties of raw foil[2-5.... In this work, the dependence of llim on the potential difference, ?φ, between the pitting potential and the corrosion potential of Al foil during electro-etching in HCl+H2SO4 solution was studied......
in this area. The alkaline localized corrosion and the pitting corrosion are the main corrosion mechanisms in the corroded areas within the weld regions. Crystallographic pits are observed within... in the HAZ reduced the micro galvanic driving force causing IGC and introduced the pitting corrosion. Moreover, previous researches have reported that friction stir welds of the AA5xxx alloy presented......
increased from 32.6 to 38.8 °C, and the pitting potential increased from 0.252 VSCE to 0.317 VSCE. Electrochemical impedance spectroscopy results showed that the corrosion resistance of passive film rose...Enhancements of Passive Film and Pitting Resistance in Chloride Solution for 316LX Austenitic Stainless Steel After Sn AlloyingYuan-Yuan Yang,Yuan-Yuan Liu,Man-Lang Cheng,Nian-Wei Dai,Min Sun,Jin Li......
are spontaneously passivated with significantly low passive current density of the order 10-4 A/cm2. There is a large extent between pitting potential and corrosion potential(φcorr), which means... Effect of crystallization on corrosion resistance of Cu52.5Ti30Zr11.5Ni6 bulk amorphous alloy TAN Chao-Gui(檀朝桂), JIANG Wen-juan(蒋文娟), WU Xue-qing(吴学庆), WANG Xiu-feng(王秀锋), LIN Jian-guo(林建国......
the mechanism of corrosion by turning pitting corrosion of Mg-Al magnesium alloys into overall corrosion[11]. The distribution of β-Mg17Al12 phase determines the corrosion resistance of the Mg-Al... Corrosion and mechanical properties of hot-extruded AZ31 magnesium alloys ZHANG Zhi-min(张治民)1, XU Hong-yan(徐宏妍)1, 2, WANG qiang(王 强)1 1. School of Materials Science......
of silicate post-sealing on the corrosion behaviors of aluminum alloy pretreated with cerate or permanganate solutions. They conclude that silica plays an important role in the pitting repair process. So far... Effect of silicate pretreatment, post-sealing and additives on corrosion resistance of phosphated galvanized steel XU Yu-ye(徐玉野)1, LIN Bi-lan(林碧兰)2 1. College of Civil Engineering, Huaqiao......
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positive pitting potential, less corrosion current density and five times larger passive film resistance compared with the coarse grained(CG) one. It was found that the increased pitting resistance...], thermal stability[6-7], and mechanical properties[8-10], while there were limited works on the corrosion behavior of ECAP processed(ECAPed) materials. Pure Al and Al alloy have relative good pitting......