By analyzing and researching the corrosion resistant mechanism of adsorption typal acidification corrosion inhibitor, taking single equational experimental method, making use of mannich reaction and using the hydrochloric acid as catalyst and the ethyl alcohol absolute as solvent, the new acidification corrosion inhibitor HZ-1 is synthesed by formaldehyde全网在线观看黄色网站、hypnone、aromatic amines in the present research of this thesis.

本文通過對吸附型酸液緩蝕劑緩蝕機理的分析和研究，利用單因素實驗方法，采用曼尼希反應好看的av作品，以鹽酸為催化劑操操干干日日操，無水乙醇為溶劑亚洲综合色色，用甲醛、苯乙酮色水在线、芳香多胺合成了新型酸化緩蝕劑HZ-1黄色视频大全一区。

Under normal temp., PVF2 has a fine corrosion resistance to many organic solvents like halogen, halogenated hydrocarbon, strong oxidant, boiling acid and alkali; UHMWPE has a fine corrosion resistance to inoxidable acid (dilute sulfuric acid, nitric acid and large concen-tration hydrochloric acid, phosphorus acid, hydrofluoric acid, formic acid and acetic acid), ammonia, amine and various alkali and salty solutions. Both materials can't resist the corrosion of strong oxidable acid.

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Under normal temp., PVF2 has a fine corrosion resistance to many organic solvents like halogen, halogenated hydrocarbon, strong oxidant, boiling acid and alkali UHMWPE has a fine corrosion resistance to inoxidable acid (dilute sulfuric acid, nitric acid and large concen-tration hydrochloric acid, phosphorus acid, hydrofluoric acid, formic acid and acetic acid), ammonia, amine and various alkali and salty solutions. Both materials cant resist the corrosion of strong oxidable acid.

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Under normal temp., PVF2 has a fine corrosion resistance to many organic solvents like halogen, halogenated hydrocarbon, strong oxidant, boiling acidalkali; UHMWPE has a fine corrosion resistance to inoxidable acid (dilute sulfuric acid, nitric acidlarge concen-tration hydrochloric acid, phosphorus acid, hydrofluoric acid, formic acidacetic acid), ammonia, aminevarious alkalisalty solutions. Both materials can't resist the corrosion of strong oxidable acid.

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Sulfate-Reducing Bacteria was the most important bacteria in microbiologically influenced corrosion,the corrosion cause by SRB was about 10 percent of total corrosion.

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The Microbiologically Influenced Corrosion of magnesium alloy was investigated using a special designed corrosion method, which was called solid culture medium adherence corrosion method.

采用固體培養(yǎng)基貼片法研究了鎂合金的微生物腐蝕行為黄页网址大全免费观看20在线。

In borate or phosphate buffered NaCl solutions with a constant total concentration of borate or phosphate, E_ increases with an increase in pH. With the increase of the concentration of chloride ions, E_ decreases markedly in the test solutions. Moreover, the buffer capacity and concentration of nonaggressive anions in the test solutions also exerts some effects on the crevice corrosion of Type 304 stainless steel. Furthermore, the cooperative inhibition effect of the environmental factors on crevice corrosion was investigated. The potential of crevice corrosion E_(cc shows a strong dependence on a parameter J, which was called as general environmental factor and defined as the product of concentration of nonaggressive anions, pH, buffer capacity and concentration of chloride ions.

在含NaCl 的硼酸或磷酸鹽緩沖溶液中欧美性爱人人网，在相同的緩沖溶液總濃度下，E_c隨pH 值增加而增加激情三级片网址；但隨著氯離子濃度的增加成年人在线视频免费观看视频，E_c顯著降低；另外緩沖容量及其陰離子對304 不銹鋼縫隙腐蝕也有影響人人干,人人拍,人人吊,人人操；最后實驗研究了這些環(huán)境影響因素的協(xié)同影響規(guī)律性爱在线国产，得出環(huán)境綜合影響因素參數(shù)JA片ⅩXXXX，J 由pH 值、緩沖容量涩涩网页、氯離子濃度及其緩沖溶液中其它陰離子濃度定義三级黄美女安全色网站，縫隙腐蝕電位與參數(shù)J 有好的線性關(guān)系。

In this thesis, the advantages and disadvantages of potentiodynamic polarization curve, electrochemical impedance spectroscope and coulostatic method for studying corrosion inhibitors in acidic mediums were compared. And then the effect of three popular acid corrosion inhibitors such as thiourea, dodecylamine and propargyl alcohol on the corrosion inhibition behaviors of Q235 steel in acidic solutions were investigated by these techniques. The anodic desorption behavior and extreme value phenomenon of concentration were surveyed thoroughly as well.

本文討論了動電位極化曲線九九热这里只有精品九九、電化學阻抗譜和恒電量測量方法在酸性介質(zhì)緩蝕劑研究中的優(yōu)勢和不足毛片一区二区三区免费，在此基礎上，研究了硫脲国产理论精品一区、十二胺和丙炔醇等三種常見酸性介質(zhì)緩蝕劑對Q235鋼在酸性溶液中的緩蝕行為和機理欧洲无码高清视频在线，并深入探討了緩蝕劑的陽極脫附和濃度極值現(xiàn)象。

A reasonable explanation was given to this phenomenon in terms of the mechanism of anodic dissolution and characteristics of CO〓 corrosion. The corrosion behavior of P110 steel at lower temperature and pressure showed that, the corrosion product film initially was thin and discontinuous, then with the increase of temperature and exposure time it became thicker and sludgy, at last a new crystalline film formed on the sludgy film.

陽極極化和自然腐蝕電位下的EIS譜隨溫度變化規(guī)律表明色爱精品视频一区二区三区，在兩種電位下锕锕锕锕锕锕好污网站入口，室溫到90℃的溫度范圍內(nèi)，都存在一個臨界溫度成年人黄色大片大，低于CT色多多性爱视频，電化學阻抗譜表現(xiàn)為三個時間常數(shù)，高于CT黄片www欧美视频，譜圖為雙容抗弧77se77亚洲欧美在线，從陽極反應機理和CO〓腐蝕特征出發(fā)對試驗結(jié)果進行了解釋。

Oxidation, sulphidation and hot corrosion behaviour of the coating have been investigated and the respective corrosion mechanisms have been revealed, which accounts for the first systematic research done in China on the corrosion behaviour of high chromium nickel-base alloys.

對其抗高溫氧化一级A片免费视频一区二区、抗H〓S欧美操逼打开直接看的黄片、SO〓腐蝕以及抗熱腐蝕的性能和機理進行了系統(tǒng)研究。