Séminaire virtuel TimeMan: "Cristallographie tomographique des dislocations dans les métaux"
SéminaireThree dimensional quantitative characterization of dislocation structures is of vital importance to fully understand many dislocation-related dynamic processesin materials science. Our recent years’ effort has well promoted the establishment of a novel tomographic crystallography method for dislocation characterization which can simultaneously reveal the geometric, crystallographic and energetic features of dislocations. In this presentation, the recent progress in the improvement of the method will be introduced, and its applications torevealingcomplicated dislocation structures in a quenched aluminum alloy and a deformed pure aluminumwill be presented.The obtained results with good coupling well unveil various characteristics of the dislocation structures, furtherenlighteningus for a better knowledge of dislocation behaviorssubjected tothermal and mechanical loadings.
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