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Materials 2018, 11(2), 190; doi:10.3390/ma11020190

Revealing Grain Boundary Sliding from Textures of a Deformed Nanocrystalline Pd–Au Alloy

1
Laboratory of Excellence on Design of Alloy Metals for Low-Mass Structures (DAMAS), Université de Lorraine, 57073 Metz, France
2
Laboratoire d’Etude des Microstructures et de Mécanique des Matériaux (LEM3), Université de Lorraine, 57073 Metz, France
3
Institut für Festkörper- und Materialphysik, Technische Universität Dresden, D-01062 Dresden, Germany
4
Experimentalphysik, Universität des Saarlandes, D-66041 Saarbrücken, Germany
*
Author to whom correspondence should be addressed.
Received: 29 December 2017 / Revised: 22 January 2018 / Accepted: 23 January 2018 / Published: 25 January 2018
(This article belongs to the Special Issue Design of Alloy Metals for Low-Mass Structures)
View Full-Text   |   Download PDF [2516 KB, uploaded 25 January 2018]   |  

Abstract

Employing a recent modeling scheme for grain boundary sliding [Zhao et al. Adv. Eng. Mater. 2017, doi:10.1002/adem.201700212], crystallographic textures were simulated for nanocrystalline fcc metals deformed in shear compression. It is shown that, as grain boundary sliding increases, the texture strength decreases while the signature of the texture type remains the same. Grain boundary sliding affects the texture components differently with respect to intensity and angular position. A comparison of a simulation and an experiment on a Pd–10 atom % Au alloy with a 15 nm grain size reveals that, at room temperature, the predominant deformation mode is grain boundary sliding contributing to strain by about 60%. View Full-Text
Keywords: Pd–10Au alloy; shear compression; texture; grain boundary sliding Pd–10Au alloy; shear compression; texture; grain boundary sliding
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MDPI and ACS Style

Toth, L.S.; Skrotzki, W.; Zhao, Y.; Pukenas, A.; Braun, C.; Birringer, R. Revealing Grain Boundary Sliding from Textures of a Deformed Nanocrystalline Pd–Au Alloy. Materials 2018, 11, 190.

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