金属和合金的腐蚀. 深海水中暴露的金属和合金的腐蚀试验指南

[中文适用范围]： 本文件给出了暴露在深海水中的金属和合金的腐蚀测试指南，包括测试地点的选择、测试系统的组件和组装、试样制备、测试程序、从暴露地点检索和测试后的评估报告。 本标准适用于金属和合金的全面腐蚀暴露试验以及暴露在深海水中的试样的应力腐蚀开裂（SCC）试验、电偶腐蚀试验和缝隙腐蚀试验等局部腐蚀试验。 复合材料、弹性体等其他材料也可参照本指南进行深海暴露试验，但这些材料回收后的评估与金属和合金不同。 本文件不包括深海领域阴极保护牺牲阳极的性能测试，可在深海暴露中使用指定的测试单元和设备进行。 然而，该指南也可以为在深海水中进行牺牲阳极性能测试提供有用的信息作为参考。 [外文原描述]： This document gives guidelines for the corrosion testing of metals and alloys exposed in deep-sea water, including the selection of the test site, components and assembly of the test system, specimen preparation, testing procedure, evaluation after the retrieval from exposure sites and test report. This document is applicable to the general corrosion exposure testing of metals and alloys as well as localized corrosion tests such as stress corrosion cracking (SCC) testing, galvanic corrosion testing and crevice corrosion testing of specimens exposed in deep-sea water. Testing with exposure in deep sea of other materials such as composites and elastomers can also be carried out with reference to these guidelines, but the evaluation of these materials after the retrieval is different from that of metals and alloys. This document does not include the performance testing of sacrificial anodes for cathodic protection in the field of deep sea, which can be conducted using specified testing cells and equipment in the deep-sea exposure. However, this guidance can also provide useful information as reference for conducting performance testing of sacrificial anodes in deep-sea water.