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Quasi-In-Situ EBSD Observation of the Orientation Evolution in Polycrystalline Tantalum During Rolling Deformation

《金属学报:英文版》2019年 第8期 | Ya-Hui Liu Shi-Feng Liu Chao Deng Hai-Yang Fan Qing Liu   College of Materials Science and Engineering Chongqing University Chongqing 400044 China Electron Microscopy Center of Chongqing University Chongqing University Chongqing 400044 China Department of Mechanical Engineering KU Leuven Leuven Belgium
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摘 要:The evolution of crystallographic orientation of polycrystalline tantalum(Ta)during rolling was characterized by electron backscatter diffraction technique in a quasi-in-situ way,and the microstructure and microtexture before and after the deformation were characterized and analyzed,respectively.In the specimen,164 individual grains were exacted singly from the testing region and their corresponding orientations were reconstructed and analyzed,respectively.Results show that the heterogeneous deformation in a grain can be reflected by the accidented surface microstructure.Moreover,the orientations close to{111}orientations came closer to the{111}corner,while the orientation evolution is more complicated for the orientations close{100}corner,indicating that the evolution of these orientations close to{100}corner seemed to be irregular.
【分 类】【工业技术】 > 金属学与金属工艺
【关键词】 TANTALUM ORIENTATION Quasi-in-situ Rolling
【出 处】 《金属学报:英文版》2019年 第8期 1015-1020页 共6页
【收 录】 中文科技期刊数据库