Investigation of indentation-, impact- and scratch-induced mechanically affected zones in a copper single crystal

被引：9

作者：

Juran, Pierre ^{[2
]}

Liotier, Pierre-Jacques ^{[2
]}

Maurice, Claire ^{[2
]}

Valiorgue, Frederic ^{[1
]}

Kermouche, Guillaume ^{[2
]}

机构：

[1] Univ Lyon, Ecole Natl Ingn St Etienne, UMR CNRS ECL ENISE 5513, Lab Tribol & Dynam Syst, F-42023 St Etienne 2, France

[2] Ecole Mines St Etienne, Ctr SMS, Lab LGF UMR CNRS 5307, F-42023 St Etienne 2, France

来源：

COMPTES RENDUS MECANIQUE | 2015年 / 343卷 / 5-6期

关键词：

Indentation; Scratch; Micro-impact; EBSD; Crystal plasticity; Finite-element analysis; Surface mechanical treatment; Lattice misorientation; TRIBOLOGICALLY TRANSFORMED STRUCTURE; CENTERED-CUBIC CRYSTALS; STRESS-STRAIN CURVES; SHOT PEENING PROCESS; RESIDUAL-STRESSES; SURFACE INTEGRITY; HARDENED STEEL; PLASTICITY; METALS; DEFORMATION;

D O I：

10.1016/j.crme.2015.03.003

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

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. © 2015 Académie des sciences.

引用

页码：344 / 353

页数：10

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