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)象及腐蝕機理草哟哟在线。

The results show that the corrosion rate of the aged alloy increases with aging time until1 193 h and thenceforwards decreases again. The T4 alloy shows the lowest corrosion rate, and the F alloy exhibits the highest corrosion rate.

結(jié)果表明国产美女免费自拍视频网站，時效時間為193小時之前，合金的腐蝕速率隨時效時間增加而增加这里只有精品美女老师，之后有所降低又大又黄又粗高潮免费；T4態(tài)合金的耐蝕性最好，F(xiàn)態(tài)最差中文字幕第22页。

It disperses equably and never delaminates and deposites within the time of acid pickling. The static corrosion rate tor carbon steel is 0.6g-m-2-h-1 and the efficiency of corrosion inhibition is 99.02%;the dynamic corrosion rate is below 4g-m-2-h-1 and corresponding efficiency is 95.61%.

在酸洗時間內(nèi)溶液分散均勻seyoyo在线观看，不發(fā)生分層、沉淀現(xiàn)象：標(biāo)準(zhǔn)酸洗條件下午夜免费电影网，對A3鋼的靜態(tài)腐蝕速率為0.6g·m~(-2)·h~(-1)以下国产一级性爱免费视频，緩蝕率為99.02％：流速為0.4m／s的動態(tài)腐蝕速率控制在4g·m~(-2)·h~(-1)以下，緩蝕效率達(dá)95.61％。

Bonded darkest part order continuation corrosion, and then a second level of corrosion, gloomy and dark hiberarchy, do more corrosion, and the second time after the conclusion of the second Tati, bonded dusking hiberarchy dusking hiberarchy and time.

涂蓋最陰暗部層次不讓繼續(xù)腐蝕404黄色网站点击进入，接著進(jìn)行第二次腐蝕欧洲黄色官网，使陰暗層次與次陰暗層次拉開，腐蝕時間不要多国产二级AV无码免费久久，第二次腐蝕完畢后jizzjizz99，進(jìn)行第二次修涂，涂蓋陰暗層次及次陰暗層次日韩美女淫乱网。

A Ni-ZrO_2 nano-composite were prepared by electrodeposition.The corrosion resistance of the Ni-ZrO_2 nano-composite electrodeposits in 10%HCl and 10%H_2SO_4 solutions respectively was studied by massloss measurement.SEM was used to observe the morphology of various electrodeposits after corrosion test,and the relevant corrosion mechanism was discussed.

采用電鍍工藝制備了純鎳電鍍層和Ni-ZrO2納米復(fù)合電鍍層国产操逼视频免费播放，對純鎳電鍍層和Ni-ZrO2納米復(fù)合電鍍層分別在10%HCl和10%H2SO4溶液中的耐蝕性進(jìn)行了對比研究，用SEM對各種電鍍層腐蝕后的表面形貌進(jìn)行了觀察爱搞免费。

The corrosion of concentrated sulfuric acid is related to the temperature and the impurity content. The corrosion rate is raised up when the temperature is higher. If the sulfuric acid has some ion nitrated , the pipe corrosion will raise up, too. The product's color is unusual.

濃硫酸管線的腐蝕還與溫度及其雜質(zhì)含量有關(guān)欧日韩一级片，溫度的升高，腐蝕速率明顯上升800级毛片；而產(chǎn)品硫酸中含有的硝酸根離子則加劇了硫酸管線的腐蝕国产黄色av入口，且導(dǎo)致產(chǎn)品硫酸顏色異常。

During SCC of type 310 austenitic stainless steel in MgCl〓 solution at 115℃, corrosion process can enhance dislocation emission, multiplication and motion. Stress corrosion microcrack nucleates in the dislocation free zone or at the tip of the crack when the corrosion-enhanced dislocation emission and motion develop to the critical condition.

本文所得主要結(jié)論如下： 1.310不銹鋼在沸騰MgCl〓溶液中SCC時2wwwA片视频，腐蝕過程能促進(jìn)位錯的發(fā)射亚洲第一小电影免费网站、增殖和運動16萝粉嫩自慰喷水，當(dāng)其達(dá)到臨界條件時日本高清视频一区，SCC微裂紋就會在無位錯區(qū)中不連續(xù)形核或從原裂紋頂端連續(xù)形核；由于介質(zhì)的作用一道本天堂在线视频，納米級微裂紋并不鈍化成空洞和缺口视频网址国产精品入口，而是解理擴展。

Model occulted corrosion cell and other electrochemical methods were employed to study the characteristic ofbronze pit corrosion, the effects of dissolved oxygen一级黄色片在线观看视频、 pH and richened migrating of 〓 ion on the developmentof cavity in the simulated electrolyte solution. Corrosion inhibition for chloride ion by1-phenyl-5-mercapto-tetrazole pre-film on bronze has been evaluated. The mechanism of interactionbetween PMTA and the bronze surface has been studied by means of AES and XPS techniques.

采用&模擬閉塞腐蝕電池&等電化學(xué)的方法成人午夜在线观看影院免费播放网站，研究了青銅器粉狀銹的孔蝕特征，以及模擬電解質(zhì)溶液中溶解氧www.女干.com、pH值西西人体大胆作爱、氯離子的遷移富集對孔穴生長的影響，評價了1-苯基-5-巰基-四氮唑緩蝕膜抗氯離子腐蝕的性能日韩中文字幕自拍视频，利用AES久草网在线、XPS方法研究了PMTA青銅表面成膜作用的機理。

The corrosion preventions of urea prilling towers have inner corrosion and outer corrosion.

尿素造粒塔的腐蝕有內(nèi)部腐蝕和外部腐蝕在线国产一区二区。

In allusion to the corrosion of different injected water sources to the steel part of line and pump and so on in the processof oilfield waterflood development, the corrosion of dissolved oxygen, pH value, sulfureted hydrogen and salinity in the injected waterto steel was experimented and researched by the test of measuring average corrosion percentage in the laboratory.

針對油田注水開發(fā)中不同注水水源對管線操操毛片、泵等鋼材質(zhì)部位的腐蝕，在實驗室通過平均腐蝕率測定試驗黄黄网站点击进入免费，對不同水源中的溶解氧濃度人妻丰满AV无码久久不卡、pH值、硫化氫含量和鹽的礦化度等因素對鋼材的腐蝕進(jìn)行試驗研究。