2010
DOI: 10.1016/j.ijplas.2009.04.006
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Multiscale strain measurements of plastically deforming polycrystalline titanium: Role of deformation heterogeneities

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Cited by 129 publications
(84 citation statements)
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“…This in principle enables one to compare the true level of strain heterogeneity for different alloys, microstructures and microstructure inhomogeneity. Previous studies using optically based DIC have concentrated on strain localisation at the microscale, reporting maximum strain concentrations ranging between 2-3.5 times the average strain [20,21] when strain hot spots are compared to the average strain. By utilising the gold remodelling technique to produce nanoscale patterns in combination SEM imaging in the present work, it is now possible to gain an understanding of the strain concentrations that occur across a single grain and variations in strain across several grains.…”
Section: Discussionmentioning
confidence: 99%
“…This in principle enables one to compare the true level of strain heterogeneity for different alloys, microstructures and microstructure inhomogeneity. Previous studies using optically based DIC have concentrated on strain localisation at the microscale, reporting maximum strain concentrations ranging between 2-3.5 times the average strain [20,21] when strain hot spots are compared to the average strain. By utilising the gold remodelling technique to produce nanoscale patterns in combination SEM imaging in the present work, it is now possible to gain an understanding of the strain concentrations that occur across a single grain and variations in strain across several grains.…”
Section: Discussionmentioning
confidence: 99%
“…DIC, on the other hand, is more forgiving in terms of experimental requirements, which opens up possibilities for both ex situ and in situ measurements at different length scales, once appropriate random patterns are generated on the surface of a specimen. Generally, ex situ DIC can provide measurements at higher resolution [21][22][23]. However, it can only be done post-mortem, hence only residual deformation can be measured.…”
Section: Introductionmentioning
confidence: 99%
“…Typically the displacement resolution and subset size limit this technique to measurements of plastic strain fields [8]. DIC has been used to investigate damage nucleation associated with microstructures and has been conducted in Ti alloys [9,10], as well as nickel based superalloy Hastelloy X [11], and recent developments of the technique are reviewed in [8].…”
mentioning
confidence: 99%