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- crevice corrosion speed 缝隙腐蚀速度
- Pitting, crevice corrosion and layer corrosion occurred on 180YS and LF21M. 180YS、LF21M除点蚀、缝隙腐蚀外还发生层间腐蚀。
- It was found that the pitting and crevice corrosion of steel wires were the main forms of corrosion. 发现70钢丝的缝隙腐蚀和点蚀是钢丝绳的主要腐蚀形式。
- It was concluded that the corrosion of anti-rust aluminum plate was the result of crevice corrosion. 各种分析结果证明,缝隙腐蚀是导致防锈铝板表面发生失效的主要原因。
- 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。
- The present paper is mainly discusses stray current corrosion, crevice corrosion, galvanic corrosion and stress corrosion. 这些腐蚀现象在油气田开发过程普遍存在。
- For local corrosion, such as pitting and crevice corrosion, the property of superaustenitic stainless steel is as good as hastelloy alloy C 276, and even better. 对比实验表明 ,超级奥氏体不锈钢在耐点腐蚀、缝隙腐蚀等局部腐蚀性能方面可以和镍基合金 C- 2 76媲美 ,甚至优于镍基合金。
- The results indicated the CP Ti suffers from heavy crevice corrosion in high temperature than in the normal temperature, but it does not suffer from pitting. 结果表明工业纯钛在氯化物溶液中易发生严重的缝隙腐蚀,但发生点蚀的可能性不大。
- The kinetics of crevice corrosion and water-line corrosion of these metals and the effects of inhibitors on crevice corrosion and water-line corrosion were studied. 研究了这些金属的缝隙腐蚀和水线腐蚀的机理,以及添加缓蚀剂对缝隙腐蚀和水线腐蚀的影响。
- Results also show that mieroelectrode technique and ellipsometry can be applied to in-situ measurement of the process in crevice corrosion of stainless steels. 微电极测试技术和椭圆偏振法可应用于不锈钢缝隙腐蚀过程的原位测试。
- Actual operation shows that, using the stabilizer can secure the concentration ratio in the process and corrosion speed and meet the design requirements. 现场实际运行结果表明,该水质稳定剂能保证该系统运动时的浓缩倍率及腐蚀速率满足设计要求。
- Internal corrosion control technology in pipeline includes gravity drop method to measure corrosion speed and pour into anti-corrosion doze. 输气管道内腐蚀控制技术包括采用失重挂片法测量管道内腐蚀速度和加注缓蚀剂等。
- Samples from heat-concomitance pipes of spot buried pipelines were processed to make test pieces and tested by a corrosion speed measurer. 从现场埋地管道的伴热管取样,经过加工做成试件,利用腐蚀速度测试仪进行测试。
- Actual operation shows that,using the stabilizer can secure the concentration ratio in the process and corrosion speed and me... 现场实际运行结果表明,该水质稳定剂能保证该系统运行时的浓缩倍率及腐蚀速率满足设计要求。
- Keywords corrosion of metal;crevice corrosion;erosion corros ion;hole corrosion;intercrystalline corrosion;stress-corrosion-cracking; 金属腐蚀;缝隙腐蚀;磨损腐蚀;孔蚀;晶间腐蚀;应力腐蚀破裂;
- And then electroplate nickel-sealing with solid particulate, which is to make micro-crack chromium when electroplating chromium again, this can avoid unsmoothness, and slower corrosion speed, as a result, improve defence performanc e. 再镀一层含有固体微粒的镍封,令到再镀铬时形成微孔铬,从而防止产生大而深的直贯基体金属的少量腐蚀沟纹和凹坑,向横向发展,减缓了穿透基体的腐蚀速度,进一步提高了防护性能。
- Crevice corrosion of plate heat exchanger 板式换热器缝隙腐蚀
- The results indicated that DG3 was excel to DG1 or BTA, but the corrosion speed in the medium with DG3 was close to that with DG2, which were 0.0021mm/a and 0.0020 mm/a respectively. 5mg/L DG2与5mg/LPBTCA复配成DG3后其缓蚀性能同DG2相比差别不大;相同条件下的30℃淡水中添加DG3后稳定存在的钙离子浓度为234.;04mg/L;
- The function mechanism of chemical pickling inhibitor was introduced. Tests of corrosion speed, inhibitability efficiency, acid mist inhibiting ability and pickling for developed YH-2 pickling inhibitor and corresponding results were presented in detail. 介绍了化学酸洗缓蚀剂的作用机理,详细阐述了对研制的YH-2酸洗缓蚀剂进行的腐蚀速度和缓蚀效率、抑制酸雾能力、酸洗老化等试验及对试验结果的讨论。
- Electronic speckle Pattern interferometry can not only quantificationally cipher out in-plane displacement as a result of corrosion, but also estimate the change of corrosion speed. 电子散斑干涉法不仅能定量测得腐蚀的面内位移,而且能得到腐蚀速度的大小。