Author
William A.T. Clark
Other affiliations: University of Oxford
Bio: William A.T. Clark is an academic researcher from Ohio State University. The author has contributed to research in topics: Dislocation & Grain boundary. The author has an hindex of 23, co-authored 73 publications receiving 2167 citations. Previous affiliations of William A.T. Clark include University of Oxford.
Papers published on a yearly basis
Papers
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TL;DR: In this paper, the passage of dislocations through grain boundaries in face centered cubic and body centered cubic polycrystalline metals was studied using dynamic in situ high voltage electron microscopy (HVEM), static transmission electron microscope (TEM), and anisotropic elastic stress analysis.
416 citations
212 citations
201 citations
TL;DR: The presence of Ti(2)Ni precipitates in both microstructures indicates that M-Wire and the conventional SE wire for rotary instruments are titanium-rich.
200 citations
TL;DR: In this article, the near surface material of copper samples was examined by transmission electron microscopy (TEM) and STEM (scanning TEM) techniques after sliding tests of varying duration, and detailed orientation information was obtained with the aid of an improved technique which uses a minicomputer to analyse Kikuchi line patterns from individual cells or sub-grains.
181 citations
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Journal Article•
28,685 citations
TL;DR: EMS as mentioned in this paper is a set of computer programs which have been developed not only for the simulation and analysis of high-resolution Electron Microscopy images, but also for the analysis of diffraction patterns.
1,897 citations
TL;DR: In this paper, a review of continuum-based variational formulations for describing the elastic-plastic deformation of anisotropic heterogeneous crystalline matter is presented and compared with experiments.
1,573 citations
TL;DR: In this article, the formation of deformation induced high angle boundaries is suggested based on grain subdivision processes which can lead to formation of different texture components within an original grain, and the distribution of their misorientations is estimated based on these mechanisms.
744 citations
01 Nov 1999-Materials Science and Engineering A-structural Materials Properties Microstructure and Processing
TL;DR: In this article, the authors present a continual analysis of stress, strain, shear planes, steady and localized flow, multipass processing which define microstructural effects and are critical for attained results.
Abstract: A special deformation technique, equal channel angular extrusion, (ECAE) to control materials structure, texture and physico-mechanical properties is described in detail. The paper presents a continual analysis of stress, strain, shear planes, steady and localized flow, multipass processing which define microstructural effects and are critical for attained results. Links between macromechanics of simple shear and grain refinement are outlined.
673 citations