The initial corrosion time may be decided by structural protection degree and penetration rate of corrosive agents.
而初始时间（或去钝时间）的确定则取决了结构防护程度及有害介质离于的渗透速率。
The target reliability level that the time of reinforcement initial corrosion in concrete structure exposed to chloride environments is proposed in this paper.
建立了氯腐蚀环境下混凝土结构中钢筋开始锈蚀的条件和耐久性极限状态方程以及氯腐蚀环境下混凝土结构的寿命评估准则；
The initial attack has the characteristics of localized corrosion.
镁合金的初期腐蚀具有局部腐蚀的特征。
An optical system has been set up to observe the initial process of stress corrosion, the application of the subjective speckle technique in observation of stress corrosion has been introduced.
建立了监测应力腐蚀萌生过程的光学系统，介绍了主观散斑方法在应力腐蚀检测过程中的应用。
Results of weight loss in lab and field site show that corrosion rate of A3 steel can be accelerated flow of seawater, especially in the initial stage.
室内和实海挂片失重测试比较结果表明，海水流动能够加快A3钢在海水中的腐蚀速度，腐蚀初期尤其明显。
A method is proposed for determining the initial time of corrosion of steel bolts in underground environment based on investigation of corrosion of steel bolts in many mining projects.
根据采矿工程中锚杆锈蚀问题，提出了地下环境场下钢锚杆开始锈蚀时间的确定方法。
The result show that the size of equivalent initial surface crack is less than 19.7to 22.5 percent of surface corrosion pit size which have the same life.
结果发现，把腐蚀坑等效为具有相同寿命的表面裂纹时，等效表面裂纹的尺寸比对应腐蚀的尺寸小19.7% - 22.5%。
The research progress on initial stage of atmospheric corrosion behavior and the relevant corrosion mechanism of metals in pollutant atmospheres were comprehensively reviewed.
综述了在污染大气环境中金属材料初期腐蚀行为和机理研究进展。
The corrosion failure of Ni-P alloy plating was mainly caused by pitting and the process can be divided into initial stage of corrosion, propagation stage and penetration stage of pitting.
结果表明，空冷器管束在失效环境中发生了腐蚀减薄和穿孔泄漏的主要原因是电化学腐蚀、坑蚀、湍流腐蚀和冲蚀以及他们的交互作用引起的。
The pipeline during the initial production run smoothly, but in 2007 and 2008 successively in Lunnan and Hami gas compressor station found a coating failure, corrosion and leakage of buried pipeline.
投产初期管道运行平稳，但2007和2008年相继在轮南和哈密压气站内发现了防腐层失效，埋地管道腐蚀和泄露的情况。
By analysis, a calculation method of the initial time and allowable time for steel-bar corrosion is built. Then a mathematic model for anti-slide pile service life is established.
分析提出了钢筋开始锈蚀时间及钢筋锈蚀时间计算方法，据此提出了抗滑桩安全使用寿命预测数学模型。
The cement has advantages of low sintering temperature, fast coagulation time, high initial and later strength and good corrosion resistance.
该水泥烧成温度低、凝结时间快、早期和后期强度都高、耐侵蚀性能好。
The cement has advantages of low sintering temperature, fast coagulation time, high initial and later strength and good corrosion resistance.
该水泥烧成温度低、凝结时间快、早期和后期强度都高、耐侵蚀性能好。
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