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首页> 外文会议>NACE International CORROSION/2005 Conference >FACTORS AFFECTING CORROSION PERFORMANCE AND TESTING OF MATERIALS AND COMPONENTS IN SEAWATER
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FACTORS AFFECTING CORROSION PERFORMANCE AND TESTING OF MATERIALS AND COMPONENTS IN SEAWATER

机译：海水中腐蚀性能及材料和成分测试的影响因素

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Corrosion testing depends on the extent and the type of information desired and the environmental conditions expected in service for the subject material. Corrosion in marine environments is dependent on various factors. Understanding how these factors interact and affect materials performance is essential in order to design marine corrosion tests that minimize experimental variations and best simulate actual service conditions in a given marine environment. Materials are tested in the laboratory and/or in the field. Laboratory testing is often preferred rather than field testing in the actual service environment due to time, better control of many variables, and/or budget limitations. Laboratory evaluations may include accelerated tests that may generate results that have little correlation with materials degradation in actual service environments. Accelerated testing often causes materials breakdown by different, often unknown, mechanisms than those observed in the field. Using modeling and precise surface analytical techniques, research examining corrosion degradation during accelerated tests versus natural exposures at the basic, atomistic level could lead to a better understanding of effects of accelerated tests on materials which can hopefully lead to modified or new accelerated corrosion tests that can mimic corrosion processes during natural exposures and more reliably predict materials performance.
机译：腐蚀测试取决于所需信息的范围和类型以及目标材料使用中预期的环境条件。海洋环境中的腐蚀取决于各种因素。为了设计最小化实验差异并在给定海洋环境中最佳模拟实际使用条件的海洋腐蚀测试，必须了解这些因素如何相互作用并影响材料性能。材料在实验室和/或现场进行测试。由于时间，对许多变量的更好控制和/或预算限制，在实际服务环境中通常更喜欢实验室测试，而不是现场测试。实验室评估可能包括加速测试，这些加速测试可能会产生与实际服务环境中的材料降解几乎没有关联的结果。加速测试通常会通过与现场观察到的机制不同（通常未知）的机制导致材料崩溃。使用建模和精确的表面分析技术，研究加速测试过程中的腐蚀退化与基本原子级的自然暴露相比，可以更好地理解加速测试对材料的影响，从而有望进行改进的或新的加速腐蚀测试，从而可以模拟自然暴露过程中的腐蚀过程，并更可靠地预测材料性能。

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