Effect of heat treatment on very-high-cycle fatigue performance of EA4T axle steel

The fatigue performance of EA4T (25CrMo4) axle steel was investigated using small-specimen rotating-bending tests up to 2 × 108 cycles to clarify how heat treatment affected high-cycle and very-high-cycle fatigue (HCF/VHCF) behavior. Five specimen groups, four heat-treated and one as-received, exhib...

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Auteurs principaux:	Chun Gao, Qingye Qiu, Dongqin Zhang, Shisen Liu
Format:	Artigo
Langue:	Inglês
Publié:	Frontiers Media S.A. 2026-03-01
Collection:	Frontiers in Materials
Sujets:	EA4T steel fatigue limit heat treatment high-speed train axle staircase method very-high-cycle fatigue (VHCF)
Accès en ligne:	https://www.frontiersin.org/articles/10.3389/fmats.2026.1760211/full
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