Dislocation density measurement by electron channeling contrast imaging in a scanning electron microscope
2011; Elsevier BV; Volume: 66; Issue: 6 Linguagem: Inglês
10.1016/j.scriptamat.2011.11.027
ISSN1872-8456
AutoresI. Gutiérrez‐Urrutia, Dierk Raabe,
Tópico(s)Hydrogen embrittlement and corrosion behaviors in metals
ResumoWe have measured the average dislocation density by electron channeling contrast imaging (ECCI) in a scanning electron microscope under controlled diffraction conditions in a Fe–3 wt.% Si alloy tensile deformed to a macroscopic stress of 500 MPa. Under optimal diffraction conditions, ECCI provides an average dislocation density close to that obtained by bright-field transmission electron microscopy. This result confirms that ECCI is a powerful technique for determining dislocation densities in deformed bulk metals.
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