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of electrochemical polarization measurements, an increase in the content of SiC particles in the composite matrice has led to the lower corrosion resistance in the composites. Key words: metal-matrix composites; ZA27 alloy; corrosion; microstructure; polarization resistance; corrosion rate 1 Introduction Discontinuously reinforced metal matrix composites (DRMMCs) have been developed intensively......
- by electrochemical corrosion tests. The low frequency capacitance arc radius and Ra+Rt of the different structures of oxide scale were comparatively analyzed by polarization curves and electrochemical impedance...; polarization curves; corrosion resistance 热轧带钢(卷,板)容易出现因雨淋和凝露等原因而导致的表面锈蚀现象,每年我国由于腐蚀而报废的钢材的量为年产量的10%~20%.在大气环境中,钢的腐蚀主要是在其表面形成的水膜下不断形成锈蚀产物的电化学反应[1-3],在湿润的大气中,由于钢表层具有一定的吸附作用,致使其表层易覆盖一层非常薄的水膜,同时其表层成分或者受力......
Trans. Nonferrous Met. Soc. China 23(2013) 1465-1471 Integrated interpretation of dual frequency induced polarization measurement based on wavelet analysis and metal factor methods Shi-li HAN1,2, Shu... polarizability) parameters of induced polarization method are commonly utilized to describe the induced polarization anomaly. When the target geology structure is significantly complicated, these parameters......
at different aging temperatures and time using constant temperature immersion corrosion method, polarization curve measure, optical microscopy and transmission electron microscopy. The results show... discontinuous and PFZ widening, the corrosion sensibility of alloy decreases. Key words:7A52 aluminum alloy; aging; intercrystalline corrosion; exfoliation corrosion; polarization curve Al-Zn-Mg系合金具有高的比......
-circuit potential,potentiodynamic polarization behavior in synthetic concrete pore solutions and electrochemical performance in cement mortar.The experimental results indicate that the TMRE shows good stability with and without the addition of Cl-ions and desirable polarization behavior in synthetic pore solution.Results of tests in cement mortar indicate that the potential of TMRE will be stable......
by potentiodynamic polarization, electrochemical impedance spectroscopy and galvanostatic discharge and corrosion behavior was evaluated using self-corrosion rate and hydrogen evolution in 4 mol/L KOH solution... by hydrogen evolution, mass loss, potentiodynamic polarization, electro- chemical impedance spectroscopy (EIS) and galvanostatic dissolution experiments. 2 Experimental 2.1 Preparation of alloys......
综合信息提取在马鞍桥金矿区预测中的应用黄喜峰1,2,沈梅芳3,张学仁1,王平安3(1.陕西省西安市长安大学2.陕西省西安市西部矿产资源与地质工程教育部重点实验室3.陕西省煤田地质局物探测量队,西安 710064)摘 要:简述激发极化法的基本原理.马鞍桥金矿床为浸染型金矿床,根据矿化岩石与围岩间存在明显的电性差异特征,选用激发极化法进行测量,并结合地质,化探等方法,结果表明,激发极化法不仅可以直接发现金矿化带,矿(化)体,而且还能反映隐伏的金矿(化)体地质特征,其地质找矿效果明显.关键词:激发极化......
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characteristic of antimicrobial stainless steel beating copper NSSAM3 in sulfate reducing bacterial(SRB)was investigated by electrochemical impedance spectroscopy(EIS)and potentiodynamic polarization.The results show that inoculation of SRB into the culture medium significantly affects the anodic polarization behavior of NSSAM3 and accelerates anodic depolarization process,however, it has little effect......
