GB/T 46763-2025 Active National standards

GB/T 46763-2025 Evaluation method for grain boundary diffusion result of sintered rare earth iron boron permanent magnets

Publish Date: 2025-12-02 Implement Date: 2026-07-01 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 46763-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Analysis methods for rare metals and their alloys

ICS Name: Other non-ferrous metals and their alloys

Publish Date: 2025-12-02

Implement Date: 2026-07-01

Pages: 16 pages

Scope

This document describes the magnetic properties of rare earth iron boron sintered permanent magnets and the evaluation method of the diffusion effect of diffusion elements at grain boundaries.
This document is applicable to the evaluation of the diffusion effect of heavy rare earth elements at grain boundaries in rare earth iron boron sintered permanent magnets through their upper and lower surfaces or multiple surfaces.
Note: For the application of the evaluation method of grain boundary diffusion, please refer to Appendix A.