翻訳と辞書 |
Materials oscilloscope : ウィキペディア英語版 | Materials oscilloscope The Materials Oscilloscope is termed for a time-resolved synchrotron High-energy X-ray technique to study rapid phase composition and microstructural related changes in a polycrystalline sample.〔Klaus-Dieter Liss: "Towards the Materials Oscilloscope: In-Situ, Real-time Diffraction on Metals Under Thermo-Mechanical Deformation", TMS-2015, http://www.programmaster.org/PM/PM.nsf/ViewSessionSheets?OpenAgent&ParentUNID=4AE20368ED00DE3585257D3B0011C714〕 Such device has been developed for in-situ studies of specimens undergoing physical thermo-mechanical simulation.〔K.-D. Liss: "Thermo-mechanical processing in a synchrotron beam - from simple metals to multiphase alloys and intermetallics", World Journal of Engineering, 7/Sup2 (2010), P438.〕 〔Klaus-Dieter Liss, Kun Yan: “Thermo-mechanical processing in a synchrotron beam”, Materials Science and Engineering: A, 528/1 (2010), p. 11-27. doi/10.1016/j.msea.2010.06.017〕 == Principle ==
Two-dimensional diffraction images of a fine synchrotron beam interacting with the specimen are recorded in time frames, such that reflections stemming from individual crystallites of the polycrystalline material can be distinguished. Data treatment is undertaken in a way that diffraction rings are straightened and presented line by line streaked in time.〔 The traces, so-called timelines in azimuthal-angle/time plots resemble to traces of an oscilloscope, giving insight on the processes happening in the material, while undergoing plastic deformation, or heating, or both,〔〔K. Yan, K.-D. Liss, U. Garbe, J. Daniels, O. Kirstein, H. Li, R. Dippenaar: "From single grains to texture", Advanced Engineering Materials, 11/10 (2009), p. 771-773 (+ Cover Page). doi/10.1002/adem.200900163 + doi/10.1002/adem.200990026〕〔K.-D. Liss, U. Garbe, H. Li, T. Schambron, J. D. Almer, K. Yan: "In-situ observation of dynamic recrystallization in the bulk of zirconium alloy", Advanced Engineering Materials, 11/8 (2009), p. 637-640 (+ Cover Page). doi/10.1002/adem.200900094 + doi/10.1002/adem.200990021〕〔K. Yan, D.G. Carr, M.D. Callaghan, K-D. Liss, H. Li: “Deformation mechanisms of twinning induced plasticity steels: In situ synchrotron characterization and modeling”, Scripta Materialia 62/5 (2010), p. 246-249. doi/10.1016/j.scriptamat.2009.11.008〕〔Klaus-Dieter Liss, Kun Yan, Mark Reid. “Physical thermo-mechanical simulation of magnesium: An in-situ diffraction study” Materials Science and Engineering: A 601 (2014): 78-85. doi/10.1016/j.msea.2014.02.014〕 These timelines allow to distinguish grain growth or refinement, subgrain formation, slip deformation systems, crystallographic twinning, dynamic recovery, dynamic recrystallization, simultaneously in multiple phases.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Materials oscilloscope」の詳細全文を読む
スポンサード リンク
翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|