查询词典 corrosion

In order to solve the problem of crevice corrosion resulted from the warping and cracking of the coatings, the feasibility of cathodic polarization with square wave pulse and the effectiveness of its control over wedgy crevice corrosion were explored.

在外加阴极极化的条件下，缝内极化电流相对较小，缝内极化电位比缝外金属略正；缝内Cl〓浓度降低，pH值显著升高；测定了这些参数在缝内的位置分布。

The paper introduce fundamental theory and viewpoint on corrosion of iron and steel and zink coating, expounding loss and hazerd of corrosion, first.

本文首先介绍了钢铁腐蚀及镀锌层的基本理论与观点，阐述了腐蚀的损失及危害。

Calculation of metal corrosion rates from polarisation data were taken with the aid of the kinetic equation of corrosion system.

由极化数据分析计算金属的腐蚀速度是通过解析腐蚀体系的动力学方程式得到的。

The results shown that the β-Zr's forming in the electronic beam alloying cumbered the diffusing of oxygen, and it improved the corrosion resistance of zirconium alloys. After the Nb ion implanted in Zr-4, ZrO2 and NbN were formed, at the range of 1×10^17 to 3×10^17g/cm^2, with the dose increasing, the capability of corrosion resistance was improved.

结果发现：电子束合金化后形成的β-Zr相阻碍了氧的扩散，提高了合金耐蚀能力；Nb离子注入合金后，注入层中生成了ZrO2和NbN，当注入剂量在1×10^17~3×10^17个／平方分米范围内时，随着注入剂量的增加，耐腐蚀能力增强。

MgO-C brick has a good erosion resistance but Al〓O〓-C brick is better. Corrosion mechanism for refractory without carbon is that FeO and oxides of molten slag take place chemical reaction with constituents of refractory and forming low fusing point compounds to be dissolved in molten slag. For those refractory containing graphite carbon is to be decarburized in advance and to form decarburizing layer and metamorphosis layer. The subsequent corrosion is decarburizing and taking chemical reaction to form low fusing point compounds and dissolved in molten slag at the same time.

铁浴中硅和钛的扩散是影响铁浴及熔渣与耐火材料作用的重要因素，耐火材料中添加的TiO〓和SiC受熔渣氧化和侵蚀，将被部分还原形成Si，Ti向铁浴中扩散，Si、Ti在铁浴中的扩散研究结果是： D〓=1.84×10〓exp（－5988.7/T） cm〓/S E〓=49766 J/mol D〓=7.76×10〓exp（－53225.5/T） cm〓/S E〓=442304 J/mol 铁浴式熔融还原熔体对粘土砖，高铝砖，镁砖的侵蚀速度很高，镁碳砖抗侵蚀能力比前几种耐火材料强，但不如铝碳砖；对不含碳耐火材料在熔体中的侵蚀是熔渣中FeO及其它氧化物与耐火材料组分的化学反应形成低熔点物熔蚀进入渣相，产生损毁。

As the concentration of FeO increasing, the rate of decarburizing and reaction-dissolving of refractory rises sharply. Meanwhile gas production rate of reduction reaction is increased and motion and foaming of molten slag are also speeded up. The corrosion feature of refractory containing graphite carbon is that the most severity area is slag level (interface of slag-gas phas -refractory) and slag-metal interface comes second, and the lowest corrosion rate is the area of iron-bath.

熔体的组成、温度及熔体与耐火材料间的相对运动对耐火材料的侵蚀产生着很大影响，而熔渣中FeO浓度是最主要的因素，FeO浓度提高，使耐火材料脱碳和反应熔蚀速度呈直线上升，熔体中还原产生气体量增加，熔体涨泡及运动速度提高，这些作用都加快了熔体对耐火材料的侵蚀。

In the other hand, graphite carbon and SiC oxidizing produce CO、SiO〓 and in the same time CO separates graphite carbon partially, this effect will decrease decarburizing rate and corrosion rate for Al〓O〓-SiC-C brick. TiO〓 and SiO〓 protective layer forming and separating graphite carbon are the main factor of resistance smelting reduction molten slag-iron to corrode and the main feature of corrosion process.

Al〓O〓-C-SiC砖在侵蚀过程中，由于SiC氧化后产生CO，SiO，并析出碳和降低耐火材料气孔率及氧化形成的SiO〓成为保护膜，使熔体对耐火材料的侵蚀能力降低，这两种耐火材料的侵蚀速度都是随着使用时间延长，耐火材料侵蚀速度逐渐降低。

No deicing salt, even if it contains a corrosion inhibitor, is entirely corrosion proof.

缓蚀型化冰盐有多样性，对植物和环境的影响常常是不知道的。

The corrosion of demineralized water is discussed through the analysis of the quality of demineralized water and corrosion products.

通过对软化水水质及腐蚀产物进行分析，论述了软化水的腐蚀机理，指出水中的溶解氧和氯离子是造成腐蚀的主要原因。

The results showed that, as a kind of anode corrosion inhibitor, BTA adsorbed on the copper surface and then funned a protective film by condensation reaction, and then decreased the corrosion current of copper by increasing the equilibrium potential.

结果表明。当H2O2存在时，抛光液中BTA作为阳极缓蚀剂吸附在抛光表面，提高了阳极铜溶解的平衡电位，并通过缩合反应生成保护膜，减小了抛光后的表面粗糙度，提高了表面质量，同时在一定程度上增加了抛光过程中的摩擦系数。

Add it into your food such as to yogurt, cottage cheese and such.

你可以把它加入到像酸奶、奶酪一类的食物中一起进食。

The man was rescued about three hours later when his partner arrived home, SAPA said.

SAPA说，这为男子在三个小时后妻子回家后被解救