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Metal Magnetic Memory Method
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Metal Magnetic Memory Method
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January 11, 2021
Online Conference "Diagnostics of Equipment and Structures Using the Metal Magnetic Memory". February 25-26, 2021
March 31, 2020
The second edition of ISO 24497-2:2020(E) Non-destructive testing – Metal magnetic memory – Part 2: Inspection of welded joints was published
March 31, 2020
The second edition of ISO 24497-1:2020(E) Non-destructive testing – Metal magnetic memory – Part 1: Vocabulary and general requirements was published

Non-destructive testing – Metal magnetic memory – Part 1: Vocabulary and general requirements

Publication date March, 2020

This second edition cancels and replaces the first edition (ISO 24497-1:2007) and ISO 24497-2:2007, which have been technically revised and merged.

Scope

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.

В марте 2020 года стандарты официально опубликованы и введены в действие взамен пересмотренных ISO 24497-1:2007(E), ISO 24497-2:2007(E) and ISO 24497-3:2007(E).

Energodiagnostika Co. Ltd is the main developer of a principally new non-destructive testing method and inspection instruments based on the metal magnetic memory (MMM)
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