腐蚀

At an electrode potential of +0.87 V, the electrode surface was rich of acicular Sn and stannum oxide. This film would prevent the electrode from dezincification, and the current density decreased and homeostasis was reached at the same time. The corrosion mechanism of brass welded line in artificial seawater was dissolution/redeposition.

随后，电极表面积累的锡和锡的氧化物及腐蚀产物层对脱锌腐蚀有一定的阻碍作用，电流密度有所下降，最后腐蚀达到一种动态平衡，腐蚀机制为溶解－再沉积机理。

Based on the observation of atomic force microscopy, the etching morphology of faces and sections with different crystallographic significance on α-quartz has been studied. The etching morphology on the natural crystal faces hexagonal prism faces (1010 and 01(average10, rhombohedron positive form face 10(average11, rhombohedron negative form face 01(average11 and the sections between any of the two crystal faces has been observed. It is shown that the etching pit on the same simple form has the same shape, while the orientation of the etching pits can be different. Different simple forms have different shapes of etching pits and the shapes of etching pits on positive form and negative form of the same simple form are also different.

通过对α-石英自然晶面六方柱面10(平均值10和01(平均值10、菱面体正形面10(平均值11与菱面体负形面01(平均值11、以及介于上述自然晶面之间的切面进行腐蚀形貌的观察研究发现，石英晶体同种单形的晶面腐蚀坑形态相同，但方位可以有变化，不同单形的晶面腐蚀坑形态不同；同一单形的正形与负形腐蚀坑形状不同；蚀坑形态能够反映晶体的对称性。

Ion implantation of 3×10〓/cm〓 Y can slightly shorten the initiation stage, but has no obvious effects on the long period hot corrosion behavior of alloy M41. After corroded for 100 hours at 900 ℃, the gas aluminide coating of alloy M41 didn't initiate accelerated hot corrosion, but the coating has been seriously destroyed.

表面注入剂量为3×10〓／cm〓的Y略微缩短M41合金热腐蚀的孕育期，但对长时间的热腐蚀影响不大。M41合金气相渗铝涂层热腐蚀100h后，没出现加速热腐蚀，但涂层破坏严重。

In the process of corrosion in 3.5% NaCl solution, the ceric aluminum brass forms a homogeneous and tight corrosion film on the surface, which can inhibit the diffusion of Zn from the surface of matrix to the solution, and restrain the dezincification to a certain degree.

在NaCl (3.5%)溶液中腐蚀过程中，铈铝黄铜表面形成一层较均匀致密腐蚀产物膜，较好地阻止了Zn从基体表面向介质中扩散，在一定程度上抑制了脱锌；铈铝黄铜耐腐蚀性能略优于砷铝黄铜，腐蚀速率为6.2×10^(-3) mm/a。

This paper describes the distribution of potentials and current densities and the chemical changes in the presence of cathodic protection,the mechanism of cathodic protection against crevice corrosion,the mechanism of microbiologically influenced corrosion of pipeline steel beneath disbonded coatings.

综述了在有阴极保护的条件时剥离涂层下缝隙内电位电流的分布和化学环境的变化、阴极保护防止缝隙腐蚀的机理、微生物腐蚀的机理以及前人提出的关于剥离涂层下微生物腐蚀与阴极保护相互作用的规律，并展望了对于解决剥离涂层下微生物腐蚀难题需进一步的实验研究

The corrosion rates of iron in 0.5～2N sulfamic acid of 25～70℃ are investigated by the conventional gravimetric method and by chemical analysis, Based on the experimental data,the several kinetic parameters of iron in sulfamic acid have been calculated,such as rate constant,activation energy,frequency factorand another constant,with the empericat equation put forward by Mathur.

本工作用腐蚀失重和化学分析方法研究了铁在0.5～2N 氨基磺酸溶液中，在25～70℃条件下的腐蚀速率。根据这些腐蚀速率数据，利用 Mathur 提出的经验公式计算出铁在氨基磺酸溶液中腐蚀反应的动力学参数 K、B、E和 A。

The article contains information on the main corrosion phenomena in the sulphur recovery unit such as high- temperature sulphuration corrosion, electrochemical corrosion etc.

本文分析了硫磺回收装置存在的高温硫化腐蚀、电化学腐蚀等主要腐蚀现象及腐蚀机理。

It i s found that the aged sample suffered more severe corrosion than the unaged samp le.Corrosion type of the aged 310SS is intergrainular,whereas corrosion type of unaged 310SS is uniform.The formation of σ phase due to aging treatment at 700 ℃ for 1000h,reduced Cr content on boundaries in 310SS,which results in the de crease of corrosion resistance of 310SS.

结果表明：经时效处理的310不锈钢比未时效处理者腐蚀严重，前者以晶间腐蚀为主，后者以均匀腐蚀为主。310不锈钢于700℃，100 00 h时效后在晶界大量析出σ相，使晶界附近贫Cr，降低了其抗硫腐蚀性能。

UCB01S is of oil resistant,acid resistant,alkaliresistant and seawater resistant.more over,there is no lead in the PTFE surface layer and so is particularly fit for bushings in food stuff machines,alkali flow meters,pumps motion elements in pharmaceutical machines,printing machines chemical engineering machines and other ocean industry.this is a triple layers composites bush,the base material being a bronze plate and a film of heat resistant power filled PTFE being calendered onto the sintered spherical bronze interlayer.

UCB01S不锈钢耐腐蚀轴承，是以不锈钢材料为基体，中间烧结耐腐蚀合金粉末，表面轧制以聚四氟乙烯为主的低摩擦材料，经过卷制成型的一种十分有效的耐腐蚀材料。它具有耐油、耐酸、耐碱、耐海水和耐磨损的特点，表面的PTEE材料不含铅成份。在食品饮料机械、印染机械、化工机械、海洋工业耐腐蚀滑动部位最适合使用。

To carry out statically corrading experiments of the naphthenic acid to Q235-A specimen; and to analyse its' dynamic mechanism at this reaction condition. The adsorption-corrosion isothermal line of the naphthenic acid has been obtained.

以易腐蚀设备的Q235-A钢材为研究对象进行环烷酸的静态腐蚀试验，对该条件下环烷酸腐蚀动力学作用机理进行了分析，得出环烷酸腐蚀的温度和酸值关系式。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。