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- The test results show that the sulfate-reducing bacteria participate in electrochemical corrosion, accelerate the localized corrosion, destroy passivation and induce pit corrosion to the stainless steel. 实验结果表明,硫酸盐还原菌参与了不锈钢的电化学腐蚀,加速了腐蚀速度,破坏了不锈钢的钝化层,诱导了不锈钢点蚀的发生。
- The field coupon tests indicated that the Jurassic oil well pipe in the oil field of PetroChina Changqing Oil Field Company suffered from severe internal corrosion,especially the pit corrosion. 通过现场腐蚀挂片试验,发现中国石油天然气股份有限公司长庆油田分公司某油田开采侏罗系油井管柱遭受严重的内腐蚀,以点蚀为主要破坏形式。
- The results indicated that the dejects was caused by pitting corrosion of impurity element iron in silver coin by environmental chloride compound. 结果表明,在银币缺陷部位的腐蚀坑内存在以铁元素为主的物质,基材中的铁元素与外界的氯引起银币的腐蚀,造成了表面缺陷。
- However, the corrosion specifically pitting corrosion prevails in the copper tubes. 通常这些热交换器都以铜管为冷却水通路。
- The cause of pitting appeared during hard chromium plating is pitting corrosion occurred on matrix local surface. 镀硬铬时出现麻点主要与基体表面局部产生点蚀有关。
- The Metallic tank has mostly the local corrosion,The most obvious type is pitting corrosion. 金属油罐的腐蚀大多为局部腐蚀,其中点腐蚀最为明显。
- It was shown that Na2CO3 inhibited the pitting corrosion of aluminum alloy to some extent. 实验结果表明,碳酸钠对铝合金具有较好的缓蚀作用,在一定程度上抑制了铝合金的点蚀。
- Bronze is very resistant to pitting corrosion, with general resistance to most chemicals less than that of pure copper. 青铜具有含好的耐点状腐蚀的性能,对于大多数化学物质,青铜的耐腐蚀性并不比纯铜差多少。
- Pitting corrosion of steam turbine blading steels: the influence of chromium content, temperature, and chloride lon concentration. 铬含量、温度和氯化物浓度对蒸汽轮机叶片钢点蚀的影响。
- The coating corrosion was pitting corrosion in HCl solution and crevice corrosion in H_2SO_4,H_3PO4 and FeCl_3 solutions. 镀层在HCl溶液中的腐蚀属于点蚀,在H2SO4、H3PO4和FeCl3溶液中的腐蚀属于缝隙腐蚀。
- Na2MoO4 and Na3VO4 could prevent the pitting corrosion in solution containing Cl-and CO2, and they had a synergistic inhibition effect. Na2MoO4、Na3VO4等对430不锈钢在含Cl-及CO2体系中的孔蚀有抑制作用,且Na2MoO4和Na3VO4有一定的协同效应。
- Acid had pitted the surface of the silver. 酸把银器的表面腐蚀了。
- Abstract:Severe pitting corrosion took place on the external surface of the low temperature reheater of a 300 MW unit boiler in a power plant. 某发电厂300MW机组锅炉,每次大小修检查都发现低温再热器外壁存在点腐蚀现象。
- In domestic systems copper should only be used downstream of galvanized piping.This will avoid the possibility of pitting corrosion. 在民用水系统中铜材料只能用于热镀锌钢材料的下游,这样可以避免孔蚀。
- The ground was pitted by the heavy rain. 大雨使场地变得坑坑洼洼。
- Cu2O enriched on the surface of stainless steel with adding Cu element so that improves general corrosion resistance and pitting corrosion resistance. 添加铜元素的锈层中,铜以Cu2O形式富集在不锈钢的表面提高了不锈钢的自腐蚀电位和点蚀电位。
- The children were playing in the sand pit. 孩子们在沙坑中玩耍。
- SRB grows and propagates, and forms the biofilms on carbon steel in biofilms, and accelerates the formation of the pitting corrosion. SRB生长代谢过程中,在碳钢表面形成腐蚀生物膜,改变了生物膜下碳钢表面的微环境,促使碳钢表面形成点腐蚀,进而在其表面出现大而不均匀的溃斑。
- The electrochemical characteristics of pitting corrosion of X70 pipeline steel in phosphate buffer solution were studied in this paper. 研究了X70钢在磷酸盐缓冲溶液中的亚稳态与稳态孔蚀的电化学行为特征。
- His face is pitted with smallpox. 他的脸因天花而留下疤痕。
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries