GB/T 45878-2025 Active National standards

GB/T 45878-2025 Metallic materials—Fatigue testing—Axial plane bending method

Publish Date: 2025-06-30 Implement Date: 2026-01-01 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 45878-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: \n Test methods for the mechanical properties of metals

ICS Name: Mechanical testing of metal materials

Publish Date: 2025-06-30

Implement Date: 2026-01-01

Pages: 28 pages

Scope

This document specifies the conditions for the axial plane bending fatigue test of metal material specimens (without intentionally introducing stress concentration) at room temperature (between 10 °C and 35 °C).
This document is applicable to the axial plane bending fatigue test of rectangular and beveled cross-section specimens. The detection of product components and other special-shaped specimens is not included.
This document is not applicable to reverse or partial loading tests. The purpose of the test is to provide relevant results, such as the relationship between applied stress and the number of failure cycles under different stress ratios and given material conditions (such as hardness and microstructure). Since the shape and size of notched specimens are not standardized, this document is not suitable for fatigue testing of notched specimens. However, the fatigue testing process described in this document can be applied to the fatigue testing of notched specimens in Appendix A.