腐蚀作用

After serious corrosion for main axis of naval vessel in sea water, the corrosion region of the main axis was restored by using adhesively bonding technology and domestic high strength metallic healant.

舰艇大轴在海水中严重腐蚀后，采用粘接技术，选用国产高强度金属修补剂，对大轴局部腐蚀部位进行修理，对提高大轴使用寿命，防止大轴再腐蚀起到有效作用。

After deaeration of the 3.5% NaCl solution with nitrogen,only Ψc decreased markedly in comparison with that without deaeration at the same flow velocity.

结果表明：在35% NaCl流动溶液中，随着流速的增大，仅碳钢腐蚀的阴极反应作用系数急剧增大，其腐蚀率也随之增大，流体力学因素主要加速了碳钢腐蚀的阴极反应过程。

Corrosion behavior of high strength galvanized steel wires under certain tensile stress was studied at different temperatures in a simulated acid rain by Tafel linear extrapolation, EIS and accelerated corrosion test.

采用Tafel直线外推法、交流阻抗和加速腐蚀试验，研究了拉伸应力作用下高强度镀镜钢丝在不同温度的模拟酸雨溶液中的腐蚀行为，表征其腐蚀前后形貌。

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。

A new kind of magnesium alloys has been synthesized by high energy ball-milling of Mg and Fe mixed powders.Due to the high corrosion speed and reacting efficiency,the alloys are generally called super-corroding alloys.A SCA bulk is fabricated through cold-pressing and sintering the mechanically alloyed Mg-Fe powders.The chemical reaction of SCA with seawater rapidly releases heat and hydrogen gas,which may play very important roles in many ocean applications.For example,the reaction heat can be used to keep diver clothes warm;SCA corrosive links with the function of self-destruction can be utilized to control the sinking and floating of sonobuoy, and to salvage the training torpedo or other instruments.In addition,the reaction heat of SCA can be applied to heat food,machinery and ice or snow,which is thus very helpful for mountaineers.

超腐蚀合金采用Mg和Fe混合粉末，经高能球磨机械合金化、冷压、烧结，形成Mg-Fe合金块体，具有很高的海水腐蚀速率和反应效率，该合金化学反应放出的热量和氢气可在海洋工程中发挥重要作用，例如：可为深海作业潜水衣的保暖提供热量；由其制造的腐蚀链通过自毁机制，可用来控制声纳浮标的沉浮时间，打捞和回收水中的贵重仪器、装置以及训练用的靶雷；在偏远地区和寒冷地带，利用该合金的反应放热特性，不仅可加热机械、仪表或食品，而且能为登山运动员提供取暖所需的热量。

The inhibition of propargyl alcohol for 1Cr18Ni9Ti stainless steel in hydrochloric acid solution is studied with the cyclic voltammetry and ellipsometry.

采用循环伏安法和椭圆偏振光谱法，研究了丙炔醇(Propargylalcohol，PA)对 1Cr18Ni9Ti不锈钢在含有氯离子的腐蚀环境中的缓蚀作用，实验表明Cl-能使 1Cr18Ni9Ti不锈钢发生点蚀，而缓蚀剂PA对不锈钢受到Cl-的腐蚀起抑制作用。

The inhibition mechanism of MoO42- was that MoO42- transformed the hydrate ferrous oxide deposition film from anions selective to cations selective,and the cathodic process of underscale local corrosion was suppressed when it migrated into OCC.Meanwhile, the migrated MoO42- resulted in increasing the impedance of the film on the substrate metal and so inhibited the anodic process of the corrosion reaction inside the OCC.

MoO42-的作用机制在于使水合氧化铁腐蚀膜由阴离子选择性变为阳离子选择性，H+可以从膜下扩散出去，而Cl-难以扩散到膜下富集，抑制了腐蚀反应的阴极过程；同时MoO42-迁入闭塞区后增大了电极表面膜层阻抗，抑制了腐蚀反应的阳极过程。

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。

At different flow velocity, corrosion rate is further increased by the entrained sand in the medium.

旨在探讨缓蚀剂在含砂的高流速腐蚀介质中的腐蚀抑制和室内评价方法的建立，极端腐蚀条件下改性环氧涂料的性能，以及柴油的微生物处理过程中细菌的协同作用机理，为管道系统的内腐蚀防护应用和石油烃处理提供理论依据和技术支持。

When subjected to single action of bittern attack or combined actions of bittern attack and wetting-drying cycles, damage of OPC, APC, and HSC are mainly due to chemical corrosions, resulting in several attack products, and also due to crystallization of NaCl-KCl.

在正常温度的单一腐蚀因素和等双因素作用下，OPC、APC和HSC的腐蚀破坏以形成多种腐东南大学博士学位论文蚀产物的化学腐蚀为主，NaCl-KCl物理结晶腐蚀为辅。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。