焊接的无损检验.用矢量分析的焊接涡流检验

[中文适用范围]： 本国际标准定义了用于检测表面破裂和近表面平面不连续性的涡流检测技术，主要是铁素体材料（焊接材料、热影响区、基材）。 涡流测试也可以指定用于非铁素体材料，例如在应用标准中。 该技术可应用于陆上和海上制造和使用过程中的涂层和未涂层物体。 涡流检测可以在所有可触及的表面和几乎任何配置的焊缝上进行。 注：除非本国际标准中的具体条款另有规定，一般原则涡流探伤通常在焊态下进行。 然而，结果的准确性可能会受到非常粗糙的表面光洁度的影响。 [外文原描述]： ISO 17643:2015 defines eddy current testing techniques for detection of surface breaking and near surface planar discontinuities, mainly in ferritic materials (weld material, heat-affected zones, base material). Eddy current testing can also be specified for use with non-ferritic materials, for example in an application standard. The techniques can be applied to coated and uncoated objects during fabrication and in service, both onshore and offshore. Eddy current testing can be carried out on all accessible surfaces and on welds of almost any configuration. Unless otherwise specified at specific items in this International Standard, the general principles of ISO 15549 apply. NOTE Eddy current testing is usually performed in the as-welded condition. However, the accuracy of the results can be affected by very rough surface finishes.