Very high cycle fatigue of D16T aluminum alloy - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Physical Mesomechanics Année : 2021

Very high cycle fatigue of D16T aluminum alloy

A. Shanyavskiy
  • Fonction : Auteur
Alexander Nikitin
  • Fonction : Auteur

Résumé

The paper provides a fractographic analysis of fatigue cracking in D16T aluminum alloy undervery high cycle fatigue at a frequency of 20 kHz. The analysis shows that in the range of 2.8x10^8 to 5.1x10^9 cycles to failure, the material reveals cracks on and beneath its surface with their subsurface site developing through intergranular fracture at triple junctions or smoothly faceted transgranular fracture. The main crack develops by shear with the formation of differently oriented facets against which a cascade of oriented and misoriented dimples appears. Such dimples are left by spherical and ellipsoidal particles which are formed, displaced, and intruded into both fracture sides as the crack edges come in contact.
Fichier non déposé

Dates et versions

hal-03260712 , version 1 (15-06-2021)

Identifiants

Citer

A. Shanyavskiy, Alexander Nikitin, Thierry Palin-Luc. Very high cycle fatigue of D16T aluminum alloy. Physical Mesomechanics, 2021, 24 (1), pp.77-84. ⟨10.1134/S1029959921010112⟩. ⟨hal-03260712⟩
96 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More