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.

在常溫下，PVF2對鹵素国产女同精品一区二区三区、鹵代烴欧美老妇BBB浓毛乱、強(qiáng)氧化劑、沸酸182黄色网站入口、堿等多種有機(jī)溶劑都有良好耐蝕性99riav成年人视频网站免费观看；UHMWPE對非氧化性酸(稀硫酸、硝酸及濃度較大的鹽酸国内毛片网址?、磷酸18禁免费无码无遮挡网站老男人、氫氟酸、甲酸www.ggzhyc.com、乙酸)、氨和胺及各種堿一级黄片;一被-、鹽溶液都有良好的耐蝕性久久免费看片一级，兩種材料都不耐強(qiáng)氧化性酸的腐蝕。

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

硫酸鹽還原菌是微生物腐蝕中最為重要的菌種女人自慰喷水的网站，其引起的腐蝕約占所有腐蝕總量的10%亚洲国产精彩视频。

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。

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国产性行为视频，在相同的緩沖溶液總濃度下97免费视频人妻无码一区，E_c隨pH 值增加而增加；但隨著氯離子濃度的增加，E_c顯著降低国产手机小视频看片；另外緩沖容量及其陰離子對304 不銹鋼縫隙腐蝕也有影響玖玖资源网在线；最后實(shí)驗(yàn)研究了這些環(huán)境影響因素的協(xié)同影響規(guī)律，得出環(huán)境綜合影響因素參數(shù)J欧美一级情欲视频，J 由pH 值黄色毛片ww、緩沖容量、氯離子濃度及其緩沖溶液中其它陰離子濃度定義女同一区二区三区，縫隙腐蝕電位與參數(shù)J 有好的線性關(guān)系jiuse901。

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、電化學(xué)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)勢和不足免费性爱a片在线，在此基礎(chǔ)上欧美日韩综合网址，研究了硫脲、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(jī)理AV网站大全免费，并深入探討了緩蝕劑的陽極脫附和濃度極值現(xiàn)象,在线观看黄色网址。

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，在兩種電位下国产精品视频一区二区啪视频，室溫到90℃的溫度范圍內(nèi)又黄又刺激又爽又免费的视频，都存在一個臨界溫度，低于CT2020亚洲高清一区二区，電化學(xué)阻抗譜表現(xiàn)為三個時間常數(shù)黄片a片在线免费观看，高于CT，譜圖為雙容抗弧日韩一级性爱黄片视频在，從陽極反應(yīng)機(jī)理和CO〓腐蝕特征出發(fā)對試驗(yàn)結(jié)果進(jìn)行了解釋免费毛片基地。

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、抗H〓S日本不卡网址欧美视频、SO〓腐蝕以及抗熱腐蝕的性能和機(jī)理進(jìn)行了系統(tǒng)研究99热这里只有精品国产首页。

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裝置存在的高溫硫化腐蝕、電化學(xué)腐蝕等主要腐蝕現(xiàn)象及腐蝕機(jī)理人人操人人干在线观看。