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)果表明好吊色中文字幕精品在线观看，時(shí)效時(shí)間為193小時(shí)之前亚洲日韩欧美性爱在线，合金的腐蝕速率隨時(shí)效時(shí)間增加而增加精品偷拍视频,图片和小说，之后有所降低久久思思热视频；T4態(tài)合金的耐蝕性最好，F(xiàn)態(tài)最差国产在线无码一区二区三区视频。

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(shí)間內(nèi)溶液分散均勻欧美一区精品视频一二区:，不發(fā)生分層、沉淀現(xiàn)象：標(biāo)準(zhǔn)酸洗條件下黄色青草视频e，對(duì)A3鋼的靜態(tài)腐蝕速率為0.6g·m~(-2)·h~(-1)以下国产亚洲日韩在线人成，緩蝕率為99.02％：流速為0.4m／s的動(dòng)態(tài)腐蝕速率控制在4g·m~(-2)·h~(-1)以下，緩蝕效率達(dá)95.61％天天操夜夜操一区,二区,三区,。

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)腐蝕国产成人无码调教AV，接著進(jìn)行第二次腐蝕，使陰暗層次與次陰暗層次拉開人人干,人人草，腐蝕時(shí)間不要多欧美亚洲另类专区，第二次腐蝕完畢后，進(jìn)行第二次修涂国产2021精品，涂蓋陰暗層次及次陰暗層次日韩AV毛片精品簧片无码。

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，對(duì)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(duì)比研究亚洲人成人一二区在线观看，用SEM對(duì)各種電鍍層腐蝕后的表面形貌進(jìn)行了觀察少妇熟妇亚洲综合网站。

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)，溫度的升高日韩成人网址播放视频在线播放免费，腐蝕速率明顯上升5区av在线播放；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，且導(dǎo)致產(chǎn)品硫酸顏色異常免费在线观看国产黄片视频。

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(shí)久草视频99精品，腐蝕過程能促進(jìn)位錯(cuò)的發(fā)射、增殖和運(yùn)動(dòng)欲色天天网综合久久88，當(dāng)其達(dá)到臨界條件時(shí)视频亚洲日韩，SCC微裂紋就會(huì)在無位錯(cuò)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)的作用婷婷激情五月综合，納米級(jí)微裂紋并不鈍化成空洞和缺口日韩在线vip福利电影网，而是解理擴(kuò)展。

Model occulted corrosion cell and other electrochemical methods were employed to study the characteristic ofbronze pit corrosion, the effects of dissolved oxygen手机看片1024乱伦、 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)的方法日韩色图欧美色图，研究了青銅器粉狀銹的孔蝕特征，以及模擬電解質(zhì)溶液中溶解氧多人操逼视频、pH值黄色录像一区二区三区中文字波、氯離子的遷移富集對(duì)孔穴生長(zhǎng)的影響，評(píng)價(jià)了1-苯基-5-巰基-四氮唑緩蝕膜抗氯離子腐蝕的性能亚洲一区免费观看，利用AES黄片在线免费没播放、XPS方法研究了PMTA青銅表面成膜作用的機(jī)理福利性视频。

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。

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(duì)油田注水開發(fā)中不同注水水源對(duì)管線日韩无码黄色性交、泵等鋼材質(zhì)部位的腐蝕色就色69视频，在實(shí)驗(yàn)室通過平均腐蝕率測(cè)定試驗(yàn)，對(duì)不同水源中的溶解氧濃度h视频乱、pH值手机在线免费看黄色片网站、硫化氫含量和鹽的礦化度等因素對(duì)鋼材的腐蝕進(jìn)行試驗(yàn)研究。

Through a study of the corrosion inhibition by polyarcylic acid and dodecylbenzyldimethyl ammonium bromide for pure iron in HCl solution, this paper presents the development of a new method not only for the rapid evaluation of the efficiency of a corrosion inhibitor, but also for the quantitatively determination of the type of corrosion inhibitor.

研究了聚丙烯酸少妇卖身全黄毛片、苯扎溴銨在工業(yè)純鐵／鹽酸體系中的緩蝕性能日本女孩高潮，推導(dǎo)了一種既能快速測(cè)出腐蝕緩蝕劑的緩蝕效率又能確定腐蝕緩蝕劑類型的新方法，定義了能夠確定腐蝕緩蝕劑類型的因子P国产午夜福利游戏视频在线播放。