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   电位极化 在 金属学及金属工艺 分类中 的翻译结果: 查询用时:0.067秒
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电位极化
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  potential polarization
    An investigation on the anticorrosion characteristics of three kinds of wear resistance alloy,A33-308,A05 and A49, in acidic NaCl solution (as a corrsion medium) has been made by using A C resistance and electrokinetic potential polarization methods.
    通过交流阻抗和动电位极化的方法研究了A05、A33-308、A493种耐磨合金在酸性NaCl溶液中的耐蚀性能。
短句来源
    The corrosion behavior of AZ91D without and with coating respectively was studied by dynamical potential polarization in 3.5% NaCl solution.
    利用动电位极化测试研究了原始的和经表面处理的AZ91D在 3.5 %NaCl溶液中的腐蚀行为 .
短句来源
    EFFECT OF POTENTIAL POLARIZATION ON THE STRESS CORROSION CRACKING OF AUSTENITIC STAINLESS STEEL
    电位极化方式对奥氏体不锈钢应力腐蚀开裂敏感性的影响
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    The pretreatment for electroless nickel plating and technology of electroless nickel plating of AZ31 magnesium alloy, which has good plastic deformation ability, has been studied; The corrosion resistance, initial deposited and corrosion failure of coating have also been studied systematically by using metallographic observation, SEM observation, EDS analysis, XRD analysis, salt spray test, electrokinetic potential polarization curve research techniques.
    本文针对具有良好塑性变形能力的AZ31镁合金,结合金相观察,SEM观察,EDS分析、XRD分析,盐雾试验,动电位极化曲线测量等手段,系统地对前处理工艺、化学镀镍工艺、镀液的周期使用、镀层耐蚀性能、初期沉积机理和腐蚀失效机理进行了研究。
短句来源
    Electrokinetic potential polarization curve show that the corrosion potential ascend 1185mV and the corrosion current descend three orders after plating Ni-P coating on AZ31 magnesium alloy.
    电化学动电位极化曲线表明,AZ31镁合金表面化学镀镍后,自腐蚀电位相对基体镁合金正移1185mV,自腐蚀电流下降3个数量级;
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    The corrosion behavior of Fe-10Cr sputtering coating with nanoscale grain size was investigated in 0.05 mol/L H2SO4+0.5 mol/L NaCl aqueous solution using polarization curves,EIS and Mott-Schottky analysis.
    利用动电位极化曲线、电化学阻抗谱图(EIS)和Mott-Schottky分析等电化学测试手段,探讨了Fe-10Cr纳米涂层在0.05 mol/L H2SO4+0.5 mol/L NaC l溶液中的腐蚀行为.
短句来源
    The corrosion behaviors of 45# carbon steel,1Cr18Ni9Ti,304 stainless steel,and Ni-P alloy coatings in sulfur-bearing solution were studied by potentiostatic polarization method and gravimetric method.
    用失重法和恒电位极化法研究了45#碳钢、1Cr18Ni9Ti、304不锈钢和Ni-P合金镀层在含S介质中的腐蚀性.
短句来源
    X-ray diffraction(XRD),optical micrograph and transmission electron microscopy(TEM) were used to characterize micro-structure of materials. Meanwhile,using different electrochemical methods,such as polarization curves,electrochemical impedance spectrum(EIS),and Mott-Schottky analysis,the effect of chloride ion attack on the passive film was investigated in 0.05 mol/L H2SO4+0.05 mol/L NaCl aqueous solution.
    通过动电位极化曲线和Mott-Schottky分析等电化学测试手段,探讨了轧制纳米块体304不锈钢与普通304不锈钢(304ss)在0.05 mol/L H2SO4+0.05 mol/L NaCl溶液中钝化膜的耐Cl-侵蚀性能.
短句来源
    With Potentiodynamic and dipping, the corrosion resistance of 304 and 201 stainless steels has been investigated in this study, It is demonstrated experimentally that, for the intergranular corrosion resistance, 201 stainless steel is better than 304 stainless steel, and the corrosion resistance of 201 stainless is acetic acid is greatly better than 304 stainless steel, but the corrosion resistance of 201 stainless steel in nitric acid is worse than 304 stainless steel, thus, the economy type 201 stainless steel can have excellent application prospect.
    本文用动电位极化法及浸泡法比较了304不锈钢及201不锈钢的耐蚀性,结果发现,201不锈钢的耐晶间腐蚀性能优于304不锈钢,且其耐醋酸的腐蚀性也明显地优于304不锈钢,但其耐硝酸的腐蚀性能却不如304不锈钢,因此,我们认为经济型的201不锈钢具有良好的应用前景.
    The electrochemical corrosion behaviors of bulk nanostructured industrial pure iron (BNIPI) and coarse grain industrial pure iron rod (CGIPIR) in 0.01 mol/L H2SO4+0.25mol/LNa2SO4 solution were investigated by potentiodynamic polarization curve and electrochemical impedance spectroscopy (EIS) at ambient temperature.
    通过动电位极化曲线,电化学阻抗谱(EIS)实验,研究了块体纳米工业纯铁(BNIPI)和粗晶工业纯铁棒(CGIPIR)在室温0.05mol/lH2SO4+0.25mol/lNa2SO4溶液中的腐蚀行为.
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  potential polarization
Under constant potential (polarization) mode, the dominant mechanism of deoxidation was the ionization of oxygen, present in the foam, and its subsequent discharge, as CO2/CO, at the anode surface.
      
It is suggested that the potential polarization well is not spatially fixed and follows adiabatically the movement of the electron center of mass.
      


This paper describes some consequences of selecting inhibitors in sulphuric acid solutions by using the methods of linear polarization technique and. pote-ntiodynamic polarization. It is much easier and faster to select the inhibitors and evaluate their inhibition efficiencies by the above electrochemical methods. It is also more convenient to study the effects of different corrosion factors. By making use of above methods some better efficient inhibitors have been selected in the sulphuric acid solutions.

本文叙述采用线性极化技术和动电位极化曲线法在硫酸介质中筛选缓蚀剂的一些结果。上述电化学方法能较快地筛选缓蚀剂和评价缓蚀剂的缓蚀效率,对于探讨各种腐蚀因素的影响是较方便的。使用上述方法筛选出一些在硫酸介质中有较佳效果的缓蚀剂。

The corrosion resistance of Fe Cr8P13 B5 and FeCr8 P13 C7 alloys in different states have been investigated in the media containing chlorine ions by electrochemical measurement and total immersion test. Experimental results showed that: (1)The amorphotis Fe Cr8 P13 B5 and Fe Cr8 P13 C7 alloys have excellent corrosion resistance. The polarization curves of both amorphous corrosion resistant alloys are much similar measured in 3.5% NaCl at 30℃ by potentio-kinetic method. No breakdown potential(E_b) was observed...

The corrosion resistance of Fe Cr8P13 B5 and FeCr8 P13 C7 alloys in different states have been investigated in the media containing chlorine ions by electrochemical measurement and total immersion test. Experimental results showed that: (1)The amorphotis Fe Cr8 P13 B5 and Fe Cr8 P13 C7 alloys have excellent corrosion resistance. The polarization curves of both amorphous corrosion resistant alloys are much similar measured in 3.5% NaCl at 30℃ by potentio-kinetic method. No breakdown potential(E_b) was observed within the measured region from-1.0 to+1.5 volts(SCE)and their anodic current densities maintain low level,less than 10μA/cm~2;The corrosion rates of both amorphous alloys are lower than 10~(-3)—10~(-4)mm/y in all immersion testing environments such as 3.5%0 NaCl at 60℃, 0.5—2.5N HCl at 30℃, 10% FeCl_3·6H_2O at 40 and 60℃ and 1M H_2S_O4+0.5MNaCl at 30℃. (2) After vacuum annealing treatment at 500℃ for 1 hour, the corrosion resistance of Fe Cr8 P13 C7 alloy dropped abruptly, while that of Fe Cr8 P13 B5 alloy remained as good as in the amorphous state. Electrochemical measurements and immersion test results agree very well.

本文以电化学方法(动电位极化曲线测量)和全浸法考察了不同状态(无定形态、无定形合金退火态以及晶态)FeCr8P13B5和FeCr8P13C7合金在氯离子介质中的耐蚀性能,结果表明(1)无定形FeCr8 P13 B5和FeCr8P13C7合金都具有优异的耐蚀性能。它们的动电位极化曲线十分相似,当极代电压为+1.5伏(SCE)以下时。试样不出现破裂电位Eb,钝态电流维持在10微安/厘米~2以下;这两种无定形耐蚀合金在30℃的0.5N-2.5NHCl、40和60℃的10%,FeCl_3、6H_2O、60℃的3.5%NaCl以及30℃的1MH_2SO_4+0.5MNaCl中全浸168小时其腐蚀速率为10~(-3)-10~(-4)毫米/年。(2)无定形FeCr8P1385和FeCr8P13C7合金经500℃1小时真空退火(晶化)处理后,后者的耐蚀性能急剧恶化,而前者仍保持无定形状态的优异耐腐蚀性能。电化学测量与全浸试验所得的结果是一致的。

Zinc plating bath containing Water Glass-DPE (III) is a new technique used in zinc plating. This bath possesses stability and may produce bright deposit. It compares favourably with cyanide zinc plating. The fundamental principles are studied qualitatively and semi-quantitatively employing techniques of single linear sweep, cyclic voltammetry and polarography. The results indicate that electrode reaction is controlled both by the rates of electron transfer and the preceding chemical reaction. The electroactive...

Zinc plating bath containing Water Glass-DPE (III) is a new technique used in zinc plating. This bath possesses stability and may produce bright deposit. It compares favourably with cyanide zinc plating. The fundamental principles are studied qualitatively and semi-quantitatively employing techniques of single linear sweep, cyclic voltammetry and polarography. The results indicate that electrode reaction is controlled both by the rates of electron transfer and the preceding chemical reaction. The electroactive species, as in the case of alkaline zincate plating, is Zn(OH)_2 Or Zn(OH)_3~-. The reason why water glass can enhance the cathodic polarization is due to the formation of mixed ligand complexes.

水玻璃锌酸盐镀锌是一种镀锌新工艺。该镀液性能稳定,镀层质量优良,可与氰化物镀液媲美。本文用动电位极化曲线法,循环伏安法以及极谱等方法对水玻璃碱性镀锌原理进行了定性和半定量的研究。实验结果表明:锌在水玻璃碱性液中电沉积的电活性粒子仍然是Zn(oH)_2、Zn(oH)_3~-,而且电沉积反应受电化学步骤和前置转化步骤共同控制。水玻璃增大镀液的阴极极化作用是由于锌能与硅结合成混合配体络合物的缘故。

 
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