腐蚀

The results show that the stress corrosion is the main failure causing of the bellows expansion joint,while the local pit corrosion,residual stress and the working stress is the necessary condition.

结果表明，应力腐蚀是该膨胀节失效的主要原因，而局部的点蚀和残余应力、工作应力是应力腐蚀的必要条件。

This paper in view of present crude oil units running situation and the existence prominent question, in cooer with progress of production has carried out the corrosion mechanism research, the anticorrosion measure and the corrosion actually tests and analysis, the security and reliability analysis and the life forecast research, with the research of out and inner our country and the production actuality ,which provides a practical and feasible base for guaranteeing the equipment in the long-term and steady safe operation.

本文针对目前国内稠油加工常减压装置的生产运行现状和存在的突出问题，结合国内外研究工作和生产实际开展了稠油加工装置故障树分析、腐蚀机理、防腐措施、腐蚀实验、安全可靠性分析和寿命预测等方面的研究工作，为提高我国石油炼化装置的安全可靠性提供了理论基础和新的方法。

Thus the depth method was used to determine the corrosion rate of the ferroalloy with respect to the application in engineering.

熔融的液锌对Fe基合金有很强的腐蚀作用，判断Fe基合金的耐熔锌腐蚀性能对选择Fe基合金材料有重要的作用。

This paper introduced evolvement,feature,mechanism,harm and prevention of filiform corrosion .

丝状腐蚀是一种线型的涂膜下腐蚀，20世纪60年代在钢质药筒的储存过程中发现，并进行了大量的研究工作。

This study focused on the methods of pre-processing and post-processing of the point cloud data. According to threshold value of the firebrick erosion, an approach to identification and segmentation for the eroded region of the wall of gasifier was presented.

重点讨论了点云数据的预处理及后处理的方法，并根据内壁耐火砖的腐蚀阈值，提出了一种气化炉内壁腐蚀区域的识别与分割方法。

The galvanic current distribution of macrocell is in good agreement with the images of corrosion potential.

宏观腐蚀电池的电流分布与腐蚀电位有密切关系。

Therefore, it is significant for both theoretical and practical aspects to investigate galvanic corrosion and inhibition mechanism of inhibitors.

因此，开展电偶腐蚀及缓蚀剂抑制电偶腐蚀机理研究具有重大的理论与现实意义。

The atmospheric galvanic effects in Beijing compared with other cities indicate that atmospheric environment is most important factor.

通过与其它地区室外暴晒的镁合金电偶腐蚀效应的对比，表明环境因素影响着镁合金的电偶腐蚀效应。

Pure iron specimens were implanted by nitrogen ions with a fluence of 7×1017 ions/cm2 using ion beam implantation at an extracted voltage of 40kV.Composition and valence studies were carried out by X-ray photoemission spectroscopy;Glancing angle X-ray diffraction was employed to examine the phase transformation.

采用40kV的氮等离子体离子注入工业纯铁，注入剂量为7×1017ions/cm2，X射线光电子能谱研究表面注入层元素的成分和价态，X射线衍射分析注入层的物相转变，采用恒电位极化腐蚀试验研究了离子注入后材料在人工模拟体液中腐蚀行为。

Guard Ring Method could be employed to monitor and detect the corrosion of rebars in concrete, and the results were preferably compared with uniform polarization results.

2护环技术在混凝土中钢筋腐蚀监测及检测中是切实可行的，在同样的温湿度下，能够给出与均匀极化结果相当的腐蚀定量信息。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！