Fatigue Resistance of Dispersion-Hardened Aluminum Alloy

The fatigue resistance characteristics of an aluminum-based experimental dispersion-hardened composite material obtained by internal oxidation are investigated. Fatigue tests are carried out under loading by a “soft” scheme of cantilever bending of cylindrical rotating samples under symmetric-cycle...

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Bibliographic Details
Published in:Metal science and heat treatment 2024-05, Vol.66 (1-2), p.25-31
Main Authors: Mylnikov, V. V., Zakharychev, E. A., Pronin, A. I., Mylnikova, M. V., Shetulova, T. G.
Format: Article
Language:English
Subjects:
Additive Technologies
Aluminum base alloys
Bending fatigue
Characterization and Evaluation of Materials
Chemistry and Materials Science
Classical Mechanics
Composite materials
Dispersion hardening alloys
Engineering Thermodynamics
Fatigue cracks
Fatigue failure
Fatigue strength
Fatigue tests
Fracture surfaces
Heat and Mass Transfer
Internal oxidation
Materials Science
Metal fatigue
Metallic Materials
Nucleation
Oxidation resistance
Powder and Composite Materials
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Summary:The fatigue resistance characteristics of an aluminum-based experimental dispersion-hardened composite material obtained by internal oxidation are investigated. Fatigue tests are carried out under loading by a “soft” scheme of cantilever bending of cylindrical rotating samples under symmetric-cycle conditions. The structural and deformation features of the behavior of the material during cyclic deformation are studied by optical direct, digital, and scanning electron microscopy. The fatigue resistance characteristics of the composite are scattered little. The mechanism of nucleation and propagation of fatigue cracks is determined. Analysis of a fatigue fracture surface is performed.
ISSN:0026-0673
1573-8973
DOI:10.1007/s11041-024-01013-5