查询词典 corrosion rim

In high humidity environment or a little water environment, this product has good corrosion and corrosion protection.

在湿度高的环境中或难免有少量水汽的环境中，本产品具有良好的锈蚀、腐蚀保护作用。

This could be attributed to the following reasons: fined grain is benefit for the improvement of corrosion property, in which the homogeneous distribution of Al element was also good to improve corrosion performance.

此外，稀土改善耐腐蚀性能的原因可能是减少了有效阴极相Mg_17A1_12的数量和新相具有耐蚀性以及提高了合金的腐蚀电位，而碱土元素则降低了合金的腐蚀电位。

Carbon dioxide and hydrogen sulphide corrosion is the main corrosion during petroleum and gas mining.

CO2、H2S腐蚀是石油天然气开采过程中的主要腐蚀问题。

In this paper, mechanism and influencing factors of hydrogen sulfide corrosion were discussed, and methods for controlling hydrogen sulfide corrosion were presented.

本文详细地论述了硫化氢腐蚀的机理及影响因素，并阐述了控制硫化氢腐蚀的方法。

The stress corrosion cracking experiments were conducted using SUS 304 L stainless steel WOL samples in 3.0% NaOH solution by mass fraction at 280℃in order to study the anti-stress corrosion performance of PD-201 hydrogenator made of SUS 304 L stainless steel of purified terephthalic acidplant during alkaline washing without stopping production.

通过用SUS304L不锈钢制作的楔形张开加载预裂纹试样，在280℃、质量分数为3.0%的NaOH溶液的条件下进行应力腐蚀试验，以模拟对苯二甲酸装置的加氢反应器PD-201不停车碱洗工作过程中SUS304L不锈钢在该介质环境下的抗应力腐蚀性能。

The results show that the naturally-aged 2195 alloy has the best intergranular and exfoliation corrosion resistance. The intergranular and exfoliation corrosion are accelerated with prolonging the increasing aging time at 160℃, which is in accord with the results of polarization tests in IGC solution.

结果表明： 2195合金在自然时效状态下具有较好的抗晶间腐蚀和剥落腐蚀能力，但随着在160℃时效时间的延长，其晶间腐蚀与剥落腐蚀倾向逐渐增加；在剥落腐蚀溶液中进行的极化曲线测试也表现出相同的趋势。

From the angle of engineering application, this article analysed the corrosion characteristics and damage causes of the current structural used concrete in the region of Hangzhou gulf, on the basis of on-site survey of all the Marine concrete projects in that area. Taking HPC used in Marine as research objective, this article put great emphasis on the influence of the composition cementing material system to concrete performance, and make a preliminary probe into the action mechanism of the composite effects of various mineral materials in improving the performance of concrete by laser measuring size machine and EMPA. Through experiments, the article discussed how chloride ingression in concrete will be effected by such factors as exposure time, chloride binding, environment temperature, stress and cracks conditions; and also analysed the symptoms of these factors in the model of concrete service life prediction by conference to all related research reports both home and aboard. On the foundation of abovementioned research, this paper brought up an engineering model of service life prediction of marine concrete, which is based on chloride-induced corrosion.

本文从工程应用的角度，在对杭州湾地区既有海工混凝土工程作实地调研的基础上，研究分析杭州湾地区既有海工混凝土结构的腐蚀特点和破坏原因；以海工高性能混凝土为研究对象，着重研究复合胶凝材料体系对混凝土性能的影响，并应用激光粒度仪、EMPA等分析手段，就复合胶凝材料的作用机理进行初步探讨；试验研究混凝土暴露时间、胶凝材料对氯离子的吸附、环境温度、应力和裂缝状态等因素对混凝土中氯离子迁移运动的影响，并结合国内外相关研究报导，探讨这些因素在混凝土使用寿命预测模型中的表征；在上述研究基础上，提出以氯离子侵蚀为基础的海工混凝土使用寿命预测的工程应用模型。

The rate of point corrosion is also very low but intergranular corrosion rate is high.

本论文从组织上对不锈钢内衬层的性能进行了说明。

The lower carbon steel, corrosion resistance, especially resistance to intergranular corrosion stronger.

钢中含碳量越低，耐蚀性特别是耐晶间腐蚀能力越强。

Through penetrate methods and observing microstructure,the type of corrosion is determined as intergranular corrosion.

通过材质鉴定、着色分析以及显微镜分析确定了该腐蚀的类型为晶间腐蚀，产生腐蚀的原因主要是焊接使焊缝附近的金属受热发生敏化现象以及材料本身存在的质量问题所致。

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总部位于伦敦的时装摄影师马特欧文可能会是下一件大事的时装摄影。

Based on IMC system,the response would be better if the model matched more satisfactorily.

由于系统基于内模控制设计，故模型匹配度越高，系统响应越好。