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8.1】Prof. Werner Skrotzki
Topic: Texture: The “fingerprint” of deformation mechanisms in nanomaterials
 
2016-07-18 | 文章来源:沈阳材料科学国家(联合)实验室        【 】【打印】【关闭

Topic: Texture: The “fingerprint” of deformation mechanisms in nanomaterials

Speaker: Prof. Werner Skrotzki
     Institut für Strukturphysik, Technische Universität Dresden, Germany

Time: 10:30-11:30, Monday, August 1, 2016

Venue: Room 468, Lee Hsun Building, IMR CAS

Welcome to attend!

Abstract:

With decreasing grain size different deformation mechanisms determine the plasticity of materials. In nanomaterials (grain size <100 nm) grain boundary mediated processes like emission and absorption of dislocations by grain boundaries and grain boundary sliding predominate (Skrotzki et al., 2013). Here, texture provides a “fingerprint” of the deformation mechanisms because it accumulates the information on the activity of the slip and twinning systems as well as on grain boundary sliding processes. This will be demonstrated on Pd-Au solid solutions deformed by high pressure torsion.

Skrotzki, W., Eschke, A., Jonas, B., Ungar, T., Toth, L., Ivanisenko, Yu. and Kurmanaeva, L., 2013. New experimental insight into the mechanisms of nanoplasticity. Acta Mater. 61, 7271 – 7284. DOI: 10.1016/j.actamat.2013.08.032.

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