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associates with charge transfer action(Rct) and the other with the passive anodic film resistance(Rf). In other words, the polarization resistance(Rp) of the anodized NZ30K alloy is the sum of Rct and Rf.... Baking treatment effect on materials characteristics and electrochemical behavior of anodic film formed on AZ91D magnesium alloy [J]. Corr Sci, 2007, 49: 781-793. [25] CHANG J W, GUO X W, HE S M, FU......
Trans. Nonferrous Met. Soc. China 26(2016) 492-500 Influence of adipic acid on anodic film formation and corrosion resistance of 2024 aluminum alloy Ying-dong LI1,2, You ZHANG1, Song-mei LI1, Pi-zhi... March 2015; accepted 17 November 2015 Abstract: The influence of adipic acid on the formation and corrosion resistance of anodic oxide film fabricated on 2024 aluminum alloy was investigated......
of passive film on surface, and the large capacitance loop appears in the anodic potential range of 0 to 1.10 V and open circuit potential increases with time. When the anodic potential is greater than... of zirconium and the stability of the anodic oxide film[J]. Corrosion, 1999, 55(9): 877-882. [15] AMIN M A, ABD EL REHIMA S S, EL-LITHY A S. Pitting and pitting control of Al in gluconic acid solutions......
during the cooling of the anodic film, due to the difference in the thermal coefficient of expansion between the alloy and the oxide film[13]. With the increase of final voltage, the pore size becomes... Effects of electric parameters on corrosion resistance of anodic coatings formed on magnesium alloys ZHANG Shu-fang(张淑芳)1, 2, HU Guang-hui(胡光辉)3, ZHANG Rong-fa(张荣发)1, 2, JIA Zhi-xiang(贾......
Fig. 1 Surface ((a), (b)) and interface (c) morphologies of anodic oxidation film after LHT 激光热处理后氧化膜表面形貌如图1(a)所示,其局部放大电镜图如图1(b)所示,可见表面存在较多气孔,气孔形状不规则,尺寸在30~80 μm之间.由于氧化膜本身孔隙等缺陷存在,激光能量不能均匀作用在膜层表面,激... of anodic oxidation film before (a) and after (b) LHT 图2所示为激光热处理前后氧化膜表面XRD谱.由图2(a)可知,阳极氧化膜在衍射角38.38°和78.1°处出现2个尖锐峰,分别对应于为α-Al2O3的(104),(201)；在衍射角为44.62°和64.98°处出现2个尖锐峰,与JCPDS(10-465)标准卡片对照,分别对应于γ-Al2O3的(400......
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；阳极氧化；电压；交流电源 中图分类号:TG 146.2; TG 178; TQ 153.6 文献标识码:A Effect of AC voltage on anodic film of AZ91D magnesium alloy WANG Xi-mei, ZHU Li-qun (School of Materials Science...弧光放电下获得的氧化膜层的表面形貌 Fig.9 Surface morphology of anodic film formed by arc-discharge in 1.0 mol/L Na2SiO3 硅溶胶的加入使得氧化过程中产生弧光放电的临界电压值增加,氧化过程中火花变得更细小致密,膜层表面更均匀,但膜层厚度略减小.硅溶胶加入后,溶液的电导率减小,从而发生弧光放电的电压值增......
Corrosion of Zinc Ferrite Based Inert Anodes in AlF3-NaF-Al2O3 Melts Under Conditions of Anodic Polarization Dong Yunhui1,Zhao Zengdian1,Zhang Lipeng1,Yu Xianjin1 (1.School of Chemical Engineering... to AlF3-NaF-Al2O3 melts under the conditions of anodic polarization; (2) High anodic current density(＞1.5 A·cm-2), high alumina concentration and low ratio of NaF/AlF3 in the molten salts will be the most......
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on boric-sulfuric acid anodic film of aluminum alloy WANG Shuai-xing, ZHAO Qing, DU Nan, SHAO Zhi-song, SHU Wei-fa, CHEN Qing-long (National Defence Key Discipline Laboratory of Light Alloy Processing Science and Technology Institute, Nanchang Hangkong University, Nanchang 330063, China) Abstract: The boric-sulfuric acid anodic (BSAA) film on aluminum alloy was sealed by cerium salt conversion......
