Microplasticity in Polycrystals: A Thermomechanical Experimental Perspective

被引：9

作者：

Charkaluk, E. ^{[1
]}

Seghir, R. ^{[1
]}

Bodelot, L. ^{[2
]}

Witz, J. -F. ^{[1
]}

Dufrenoy, P. ^{[1
]}

机构：

[1] Univ Lille 1, Ctr Hyperfrequences & Semicond, CNRS, Lab Mecan Lille,UMR 8107, F-59655 Villeneuve Dascq, France

[2] Ecole Polytech, CNRS, UMR 7649, Lab Mecan Solides, F-91128 Palaiseau, France

来源：

EXPERIMENTAL MECHANICS | 2015年 / 55卷 / 04期

关键词：

Infrared thermography; Digital image correlation; Microstructure; EBSD; Plasticity; INFRARED THERMOGRAPHY; TENSILE DEFORMATION; PLASTIC-DEFORMATION; AUSTENITIC STEEL; ENERGY-STORAGE; LATENT ENERGY; STORED ENERGY; COLD-WORKING; METALS; HEAT;

D O I：

10.1007/s11340-014-9921-z

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, thermomechanical couplings at the grain scale in metallic polycrystals are studied during the deformation process through an original experimental setup and improved calibration tools and full-field treatments. In order to perform intragranular thermomechanical analysis in a metallic polycrystal at the grain scale, a crystallography-based technique for the projection of the temperature and displacement fields on a polynomial basis is proposed. It enables intragranular coupled analysis of strain and temperature full-field data. Macroscopic, mesoscopic and granular analysis are then conducted and it is shown that the determination of a macroscopic yield stress as well as a critical resolved shear stress in grains is possible. Early local microplastic activity is therefore thermomechanically confirmed.

引用

页码：741 / 752

页数：12

共 31 条

[1] Applying the grid method and infrared thermography to investigate plastic deformation in aluminium multicrystal
Badulescu, C.
Grediac, M.
Haddadi, H.
Mathias, J. -D.
Balandraud, X.
Tran, H. -S.
[J]. MECHANICS OF MATERIALS, 2011, 43 (01) : 36 - 53
[2] Barrett C., 1948, STRUCTURE METALS
[3] Berthel B., 2007, Mesures thermographiques de champs de dissipation accompagnant la fatigue a grand nombre de cycles des aciers
[4] BEVER MB, 1973, PROG MATER SCI, V17, P5, DOI [DOI 10.1016/0079-6425(73)90001-7, 10.1016/0079-6425(73)90001-7]
[5] ON THE INHOMOGENEITY OF PLASTIC DEFORMATION IN THE CRYSTALS OF AN AGGREGATE
BOAS, W
HARGREAVES, ME
[J]. PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1948, 193 (1032): : 89 - &
[6] Experimental study of heterogeneities in strain and temperature fields at the microstructural level of polycrystalline metals through fully-coupled full-field measurements by Digital Image Correlation and Infrared Thermography
Bodelot, L.
Charkaluk, E.
Sabatier, L.
Dufrenoy, P.
[J]. MECHANICS OF MATERIALS, 2011, 43 (11) : 654 - 670
[7] Experimental setup for fully coupled kinematic and thermal measurements at the microstructure scale of an AISI 316L steel
Bodelot, Laurence
Sabatier, Laurent
Charkaluk, Eric
Dufrenoy, Philippe
[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2009, 501 (1-2): : 52 - 60
[8] PLASTIC AND DISSIPATED WORK AND STORED ENERGY
CHRYSOCHOOS, A
MAISONNEUVE, O
MARTIN, G
CAUMON, H
CHEZEAUX, JC
[J]. NUCLEAR ENGINEERING AND DESIGN, 1989, 114 (03) : 323 - 333
[9] THE RELEASE OF ENERGY DURING ANNEALING OF DEFORMED METALS
CLAREBROUGH, LM
HARGREAVES, ME
WEST, GW
[J]. PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1955, 232 (1189): : 252 - &
[10] Cottrell A.H., 1954, AM J PHYS, V22, P242, DOI DOI 10.1119/1.1933704

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