GB/T 26641-2021 Active National standards

GB/T 26641-2021 Non-destructive testing—Magnetic memory testing—General requirements

Publish Date: 2021-12-31 Implement Date: 2022-07-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: GB/T 26641-2021

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Basic standards and general methods

ICS Name: Non-destructive testing

Publish Date: 2021-12-31

Implement Date: 2022-07-01

Pages: 16 pages

Scope

This document specifies the terms and definitions for non-destructive testing (NDT) of metal magnetic memory (MMM) technology, as well as the general technical requirements for applying this method. The NDT techniques specified in this document have the following purposes: -- Determine the non-homogeneity of the magnetomechanical state of ferromagnetic objects, detect the degree of stress concentration caused by defects and the boundaries of inhomogeneous metal microstructures; -- Identify locations with surface magnetic field distortions for further microstructural analysis and/or NDT and evaluation; -- Diagnose early damage to inspected objects and evaluate their structural lifespan; -- Rapidly classify new and used inspection objects based on magnetic heterogeneity for further testing; -- Combining magnetic memory with other NDT methods or technologies (ultrasonic testing, X-ray testing, etc.) can quickly detect the location of the most likely defects, thereby improving NDT efficiency; -- Used for quality control of various welding joints and their implementation (including friction welding and spot welding). For specific applications, see ISO 24497.