局部腐蚀

复合型扫描微pH电极及其在局部腐蚀中的应用

Fabrication of Composite Scanning Micro pH Electrode and Its Application in Localized Corrosion

流速和CO2分压增大以后，局部腐蚀速率都明显增大。

Localized corrosion rate increased also with the increase in flow rate and CO_2 partial pressure .

HastelloyB－2型铸造镍基合金的组织及其局部腐蚀行为研究

Studies on Microstructure and Local Corrosion Behaviour of the Hastelloy B-2 Type Cast Ni-base Alloy

而90℃条件下试样表面不仅有严重的台地腐蚀而且出现线蚀槽及腐蚀沟，局部腐蚀严重。3种钢的CO2腐蚀受到钢的成分、显微组织等冶金因素的影响。

The carbon dioxide corrosion of the steels was affected by the metallurgy factors such as composition , microstructure and so on .

结果表明，添加了N、Nb元素的304奥氏体不锈钢样品的耐局部腐蚀性能明显强于未进行元素添加的样品。

The results showed that , the specimens with N and Nb addition exhibited better resistance to localized corrosion than those without elements addition .

Kelvin探头适合于研究金属表面的局部腐蚀。

Kelvin probe is also suitable for investigating localized corrosion on the surface of metal .

本文研究了一种能在高温盐酸苛刻介质中服役的低碳低铁型铸造Ni－Mo合金的组织及其局部腐蚀行为。

The microstructure and local corrosion behaviour of low carbon low iron Ni-Mo cast alloy used for the harsh medium of high temperature hydrochloric acid was studied .

HDR双相不锈钢的耐局部腐蚀性能

Localized Corrosion Resistance of HDR Duplex Stainless Steel

近10年来，电化学噪声（EN）测试技术已逐渐成为腐蚀研究，特别是局部腐蚀研究的重要手段之一。

In recent 10 years , measure technique of electrochemical noise has gradually become one of the important means of local corrosion field .

在NaCl、H2SO4溶液中检验了膜的抗局部腐蚀和均匀腐蚀能力。

The film has undergone the test for resistance to uniform and local corrosions , in H_2SO_4 and NaCl solutions .

电化学噪声（EN）技术作为一种原位无损的电化学测试技术，特别适用于金属材料局部腐蚀的研究。

Electrochemical Noise ( EN ) is an in-situ and nondestructive technology , which is especially suited for studying local corrosion of metal materials .

在氯化钠溶液体系中的腐蚀形式均由局部腐蚀（点蚀）演变为全面腐蚀，腐蚀后的主要产物是Mg（OH）2。

The type of corrosion changed from pit corrosion to general corrosion when the alloy was immersed in 3.5 % NaCl solution and the main corrosive product was Mg ( OH ) _2 .

局部腐蚀严重的主要原因是钢的纯净度差，特别是MnS夹杂，形成局部腐蚀源。

And inclusions of MnS in steel is the root cause of local corrosion .

浸泡过程中，涂层中的Zn充当Al的牺牲阳极，Zn发生快速腐蚀，腐蚀产物逐渐覆盖涂层，随后，局部腐蚀在涂层表面扩展。

During immersion , being sacrificial anode of aluminum , zinc of the coating rapidly eroded and corrosion product gradually covered the coating . Subsequently , localized corrosion will generate in some positions .

为获得稳定的钝化膜，锂离子的浓度应随pH值的增大而增大，含锂钝化膜对氯离子的局部腐蚀有较强的抑制作用。

Concentration of lithium ions should be increased to obtain stable passive film provided that pH value increased . Results show that passive film containing lithium has great restrain action on local corrosion caused by chloride ions .

TaN薄膜局部腐蚀早期过程的ECAFM原位研究

In situ study of the early stages of localized corrosion in Tan thin film using ecafm

腐蚀类型存在点蚀或局部腐蚀特征，动态和高CO2/H2S分压比值时尤为严重；

There is pitting corrosion or local corrosion in the corrosion process of 80SS steel , and it is more serious in dynamic medium and high ratio of CO_2 / H_2S .

某电厂600MW锅炉水冷壁管内壁局部腐蚀的分析研究

Analysis of Partial Corrsion Inside Water Wall Tubes of 600 MW Boiler of a Power Plant

本文首次应用一种新的示差图像技术（DifferenceViewerImagingTechnique，DVIT）研究AA7075铝合金及金属铜的局部腐蚀过程。

A novel technique for in situ corrosion research called Difference Viewer Imaging Technique ( DVIT ) was used to investigate the localized corrosion of aluminum alloys and copper for the first time in this thesis .

18-5-Nb双相不锈钢的形变组织及耐局部腐蚀性能

Microstructure and localized corrosion resistance of deformed 18-5-Nb duplex stainless steel

为提高抑制局部腐蚀能力及综合性能，研制了GP-1输气管道缓蚀剂。

Hence , GP-1 corrosion inhibitor is developed to control local corrosion and increase comprehensive performances .

HAZ晶粒粗大、硬度高，局部腐蚀倾向大，由此导致该区SSCC敏感性高。

In HAZ , crystalline particles are coarse and has high hardness and is apt to cause local corrosion , thus it is a high SSCC sensitive area .

在流体速度为2.62m/s的情况下，温度为100℃、CO2分压为0.03MPa时，发生的局部腐蚀主要为点蚀，试样表面未能形成保护性腐蚀产物膜；

When flow velocity reaches 2.62 m / s , the local corrosion is pitting corrosion and the protective corrosion product film can not form on the test coupon surface at the temperature of 100 ℃ and the CO_2 pressure of 0.03 MPa .

通用的304L、316L等奥氏体不锈钢在含氯介质中的耐局部腐蚀性能较差，常见的破坏形态是点腐蚀。

The resistance to local corrosion by common austenitic stainless steel such as 304L and 316L in Cl-containing media is poor , and the frequently seen damage form is spot corrosion .

近年来，电化学噪声（EN）测量在实验技术和数据解析方面都得到了迅速发展，已逐渐成为腐蚀研究，特别是局部腐蚀研究中的重要手段之一。

Recently Electrochemical Noise ( EN ) Technique has been developed quickly and it gradually becomes one of the most important means of local corrosion field . In this paper , modified electrolytic cell for C-ring specimen based on the preliminary work .

分别在H2SO4、NaCl和FeCls3溶液中检验膜的抗均匀腐蚀与抗局部腐蚀的能力，证明所形成的非晶态微合金具有优良的抗腐蚀性。

And the determinations of the ability to resist uniform and local corrosion of such films in H_2S_4 . Nacl and Fecl_3 solutions respectively have shown that the amorphous micro-alloy films formed by this technique have superior corrosion resistance .

E6608气体冷却器失效形式属于典型的不锈钢局部腐蚀，既有冲刷腐蚀、晶间腐蚀、又有高温酸性环境下的过氧化腐蚀。

The corrosion type of E6608 gas cooler included eroding corrosion , intercrystalline corrosion and overoxidation corrosion in acidic high temperature environment .

在工况环境下，由于PEMFC频繁的启动/停止、负载的变化、湿度的变化等，引起电池内部电势分布异常，导致阴阳极催化层产生局部腐蚀，使得电池性能衰减。

In working condition , because of PEMFC frequent start-up and shut-down , load changes , humidity changes , causing abnormal distribution of electric potential inside the battery , resulting in anode and cathode catalyst layer produced localized corrosion , lead to the Fuel Cells performance degradation .

针对局部腐蚀减薄缺陷，利用FFS技术的最新研究成果，研制了一套对局部腐蚀减薄缺陷进行安全评定和剩余寿命估算的软件系统。

A Fitness-For-Service software system for local corrosion thin zone defects was developed to make safe evaluation and calculate the residual life for the equipment which contains local corrosion thin zone defects based on the newest advantage of Fitness-For-Service technology .

为阐明铬和钼对钢的局部腐蚀发展过程的影响，在类似于钢的闭塞腐蚀电池（OCC）内部溶液的条件下，研究了纯铬、纯铝和某些不锈钢的电化学行为。

In order to clarify the effect of Cr and Mo on the propagation of localized corrosion of steels , the electrochemical behavior of pure Cr and Mo and of some stainless steels was studied under conditions similar to those existing inside occluded corrosion cells ( OCC ) of steels .