Microscopic Strain and Crystal Rotation Measurement within Metallurgical Grains

Florent Bridier, Jean Charles Stinville, Nicolas Vanderesse, Patrick Villechaise, Philippe Bocher

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This work describes an experimental procedure to measure the progressive strain localization and crystal lattice rotation within metallurgical grains. A digital image correlation software was implemented and associated with mechanical tests carried out inside a scanning electron microscope on specimens exhibiting nanometric grainy patterns. Cross-correlation analyzes between electron backscattering diffraction maps were also developed to quantify the corresponding local crystal rotation relative to the original structure. The microscale strain and rotation fields on the surface of a tensile-loaded specimen made of austenitic stainless steel 316L are presented as an illustration. Their direct spatial correlation between strain heterogeneities and the progressive activation of slip systems is put into evidence and discussed.

Original languageEnglish (US)
Title of host publicationMaterials Structure and Micromechanics of Fracture VII
PublisherTrans Tech Publications Ltd
Pages493-496
Number of pages4
ISBN (Print)9783037859346
DOIs
StatePublished - 2014
Externally publishedYes
Event7th International Conference on Materials Structure and Micromechanics of Fracture, MSMF 2013 - Brno, Czech Republic
Duration: Jul 1 2013Jul 3 2013

Publication series

NameKey Engineering Materials
Volume592-593
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

Conference

Conference7th International Conference on Materials Structure and Micromechanics of Fracture, MSMF 2013
Country/TerritoryCzech Republic
CityBrno
Period7/1/137/3/13

Keywords

  • Crystal rotation
  • Digital image correlation
  • EBSD
  • In-situ test
  • Plastic slip
  • Strain field

ASJC Scopus subject areas

  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering

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