Investigation of indentation-, impact- and scratch-induced mechanically affected zones in a copper single crystal - 23/05/15
pages | 10 |
Iconographies | 11 |
Vidéos | 0 |
Autres | 0 |
Abstract |
Many nanomechanical testings and surface mechanical treatments—burnishing, shot peening...—are based upon contact phenomena such as indentation, impact and scratch loadings. In this paper, the Mechanically Affected Zone (MAZ) induced by these standard contact loadings applied on a single crystal copper is investigated. We assume that the MAZ can be characterized by the lattice misorientation measured using backscattering electron diffraction. With the help of a Finite-Element analysis, it is shown that crystal plasticity theory can estimate with enough accuracy the lattice misorientation pattern. Experimental results highlight that the MAZ size is always related to the residual imprint dimension and its shape depends strongly on the kind of loading.
Le texte complet de cet article est disponible en PDF.Keywords : Indentation, Scratch, Micro-impact, EBSD, Crystal plasticity, Finite-element analysis, Surface mechanical treatment, Lattice misorientation
Plan
Vol 343 - N° 5-6
P. 344-353 - mai 2015 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
L’accès au texte intégral de cet article nécessite un abonnement.
Bienvenue sur EM-consulte, la référence des professionnels de santé.
L’achat d’article à l’unité est indisponible à l’heure actuelle.
Déjà abonné à cette revue ?