The results indicated that 00Cr18Nil4Mo2Cu2 and 1Cr18Ni9Ti had poor corrosion resisting property, however, 00Cr25Ni22Mo4.5Cu and TA2 had good corrosion resisting property and were ideal material in Chloromethane production system.

選用了目前耐還原性腐蝕介質(zhì)較好的幾種工業(yè)材料www.dxj久久av，模擬現(xiàn)場(chǎng)的生產(chǎn)條件

In general, the corrosion rate for the alumina and chrome refractory in the iron phosphate melts was no higher than their corrosion rate in the DWPF melt now used at the Savannah River Site.

同時(shí)美女裸身裸乳免费视频3p视色，氧化鋁和氧化鉻耐火材料在鐵磷熔體中的腐蝕速度小于它們?cè)谂鸸杷猁}熔體DWPF中的腐蝕速度。

The results show that the mineral admixtures can reduce C3A quantity in the cement material, and the pozzolanic reaction can consume lots of hydration product-Ca2, Which makes specimens close-grained, has obvious prevention function towards the sulfate corrosion. The anti-sulfate corrosion effects of various mineral admixtures from finer to poorer in turn are as follows: 30% fly ash, 30% fly ash + 30% slag, 60% slag, 30% steel slag + 30% slag, 30% steel slag, 30% slag, the blank type.

研究結(jié)果表明：加入礦物摻合料降低了試件的膠凝材料中的C3A含量欧美色色视，其火山灰反應(yīng)消耗了大量的水化產(chǎn)物Ca2色哟哟天天操，且提高了試件的密實(shí)度，對(duì)硫酸鹽侵蝕具有明顯的預(yù)防緩解作用亚洲一级簧片在线观看；各礦物摻合料的抗硫酸鹽侵蝕效果由優(yōu)到劣依次為：30%粉煤灰18禁美女裸体露私密部位图片，30%粉煤灰＋30%礦粉，60%礦粉深夜福利国产片，30%鋼渣＋30%礦粉人人干人人操A片，30%鋼渣＞30%礦粉西西大胆欧美午夜视频，空白樣。

The research of reservoir characteristics indicate that the T_1j~2_2 reservoir's pore spaces were dominated by intercrystalline pores and corrosion pores, there have 1 ~2 high porosity section by corrasion in Mainan structure, the porosity is 6~16%,and in this area reservoirs mainly belong to type Ⅱ and typeⅢ, the reservoir type was defined as fracture-pore type. and the reservoir physical property were primarily dominated by sedimentary fadesA片视频在线播放免费、 corrosion and dolomization.

儲(chǔ)層特征研究表明欧美老妇与人性交大战，嘉二~2儲(chǔ)層以白云巖的晶間孔、溶孔為主日韩不卡一级毛片免费，麥南構(gòu)造存在1～2個(gè)溶孔發(fā)育的高孔段一本久道在线无码，孔隙度約為6～16%，儲(chǔ)層主要為Ⅱ日韩精美乱伦一区、Ⅲ類(lèi)裸模AT国产精品视频，儲(chǔ)集類(lèi)型屬裂縫—孔隙型，儲(chǔ)層物性主要受沉積微相日韩毛片一区二区免费、溶蝕作用及白云巖化作用的控制外国A级免费毛片。

In this paper the classification of corrosion factors and the selection of key parameters in corrosion modeling were studied.

研究了腐蝕因素的分類(lèi)以及腐蝕模型中關(guān)鍵參數(shù)的選擇等問(wèn)題。

In this paper, the concept, principle, common forms and corresponding prevention measures of galvanic corrosion and crevice corrosion are introduced.

主要介紹了電偶腐蝕和縫隙腐蝕的定義国产在线污视频、發(fā)生原理99精品黄色一级电影、常見(jiàn)形式及相應(yīng)的預(yù)防措施。

The morphologies of corrosion product surfaces, cross sections and fractures were examined by means of SEM, and the element distribution in corrosion product scales was also analyzed.

測(cè)定了腐蝕動(dòng)力學(xué)曲線欧美黄片AAAAAAAAAA，觀察了腐蝕產(chǎn)物表面永久免费精品影视网站播放器，橫截面和脆斷斷口的形貌，并分析了元素的分布午夜影院三级免费视中文字幕乱级，確定了腐蝕產(chǎn)物的相組成欧美日韩国产VA在线观看免费。

The electrolysis corrosion rates in the cryolite molten salt under different current densities were measured and the corrosion mechanism was preliminarily discussed.

用X射線衍射和掃描電子顯微鏡對(duì)材料的組成和微觀結(jié)構(gòu)進(jìn)行了研究，測(cè)量了樣品在冰晶石熔鹽中不同電流密度下的電解腐蝕速率欧美性恔图片在线观看，并對(duì)其腐蝕機(jī)理作了初步探討色七七亚洲另类。

Experiment results indicated that the anodic processes of copper, cupronickel-welded joint and brass-welded joint were similar in artificial seawater. At the same electrode potential, the corrosion current of cupronickel was the lowest and the corrosion resistance was the best, which is consistent with the EIS result.

結(jié)果表明：紫銅、白銅焊縫和黃銅焊縫在人工海水中的陽(yáng)極過(guò)程類(lèi)似A片免费在线小视频，相同電位下国外爱爱网站，白銅焊縫的電流密度最小，耐蝕性最佳另类免费高清视频，與阻抗測(cè)試結(jié)果一致不卡福利一区视频。

The corrosion rate, corrosive wear rate and polarization curves of aluminium brass and cupronickel alloy were determined in 3.5%NaCl and 3.5%NaCl+NH3(NH4+)solutions, the wear tracks of copper alloys were observed by SEM, the specific energy of the surface layer after corrosion was also measured by single pendulum scratching test.

本文通過(guò)測(cè)定HA177－2，BFe30－1－1在3.5％NaCl和3.5％NaCl＋NH3（NH4+）溶液中的腐蝕速率欧美精品首页、腐蝕磨損率和電化學(xué)行為以及觀測(cè)腐蝕磨損后銅合金的微觀形貌日本三级精品，研究了腐蝕后樣品的表層性能。