Nanoscale AFM and TEM Observations of Elementary Dislocation Mechanisms, 1st ed. 2017 Springer Theses Series
Langue : Anglais
Auteur : Veselý Jozef
This thesis addresses elementary dislocation processes occurring in single-crystalline alloys based on Fe-Al, and investigates correspondences between dislocation distribution inside crystals characterized by transmission electron microscopy (TEM) and surface patterns observed using atomic force microscopy (AFM). Fe-Al alloys with different degrees of ordering were prepared and deformed in compression at ambient temperature in-situ inside the AFM device. The evolution of slip line structures was captured in the sequences of AFM images and wavy slip bands, while cross slip at the tip of the slip band and homogeneous fine slip lines were also identified. Further, the thesis develops a technique for constructing 3D representations of dislocations observed by TEM without the prohibitive difficulties of tomography, and creates 3D models of dislocation structures. Generally speaking, the thesis finds good agreement between AFM and TEM observations, confirming the value of AFM as a relevant tool for studying dislocations.
Introduction.- Iron-Rich Iron Aluminides.- Experimental Methods.- Results.- Discussion.- Summary.
Nominated as an outstanding Ph.D. thesis by the Charles University in Prague, Czech Republic Introduces new 3D modelling of dislocations without recourse to tomography Validates the atomic force microscope as suitable tool for studying dislocations Includes supplementary material: sn.pub/extras
Date de parution : 12-2016
Ouvrage de 100 p.
15.5x23.5 cm
Date de parution : 07-2018
Ouvrage de 100 p.
15.5x23.5 cm
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