ISO 24497-1:2020 无损检测 金属磁性记忆 第1部分：词汇与一般要求

标准编号：ISO 24497-1:2020

中文名称：无损检测 金属磁性记忆 第1部分：词汇与一般要求

英文名称：Non-destructive testing — Metal magnetic memory — Part 1: Vocabulary and general requirements

发布日期：2020-03

标准范围

本文件规定了金属磁记忆（MMM）技术无损检测（NDT）的术语和定义，以及磁检测方法中该技术应用的一般要求。本文件中规定的术语必须适用于使用金属磁记忆技术进行无损检测的所有类型的文件和文献。这种无损检测技术有以下目标:-确定铁磁性物体磁机械状态的不均匀性，检测金属微观结构不均匀性的缺陷浓度和边界；-确定具有杂散磁场畸变的位置，以进行进一步的微观结构分析和/或无损检测和评估；-被检对象疲劳损伤的早期诊断及其结构寿命的评估；-根据磁性不均匀性对新的和使用过的检查对象进行快速分类，以便进一步检测；-通过快速检测最可能的缺陷位置，将金属磁记忆检测与其他无损检测方法或技术（超声波检测、x射线等）相结合，提高无损检测的效率；-各种类型焊接接头的质量控制及其实施（包括接触焊和点焊）。有关此应用的详细信息，请参见ISO 24497-2。

This document specifies terms and definitions for non-destructive testing (NDT) by the technique of metal magnetic memory (MMM) as well as general requirements for application of this technique of the magnetic testing method.The terms specified in this document are mandatory for application in all types of documentation and literature of non-destructive testing, using the metal magnetic memory technique.This NDT technique has the following objectives:— determination of the heterogeneity of the magneto-mechanical state of ferromagnetic objects, detection of defect concentration and boundaries of metal microstructure heterogeneity;— determination of locations with magnetic stray field aberrations for further microstructural analysis and/or non-destructive testing and evaluation;— early diagnostics of fatigue damage of the inspected object and evaluation of its structural life time;— quick sorting of new and used inspection objects by their magnetic heterogeneity for further testing;— efficiency improvement of non-destructive testing by combining metal magnetic memory testing with other NDT methods or techniques (ultrasonic testing, x-ray, etc.) by fast detection of the most probable defect locations;— quality control of welded joints of various types and their embodiment (including contact and spot welding). See ISO 24497-2 for details of this application.

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