A combined EBSD/nanoindentation study of dislocation density gradients near grain boundaries in a ferritic steel

Special Issue on ‘Indentation across scales and techniques: recent advances in experiments and modelling’, edited by Vincent Keryvin

Open Access

Table 2

Summarized comparisons about the capabilities of 2D-EBSD and Nanoindentation methods to detect spatial gradients of dislocation densities and estimate the internal length λ.

	GND from 2D-EBSD	Nanoindentation
Spatial resolution	0.1 μm	2 μm
Low plastic strain < = 3%	Not applicable	Gradients detected at ε_p = 3%
Large plastic strain (18%)	Gradient of GND densities	Gradient of total dislocation densities
Induced internal length λ	≈ 2 μm	≈ 2μm

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