Crystallographic Texture and Plastic Anisotropy

2016 ◽  
pp. 47-78
Author(s):  
Hans Joachim Bunge ◽  
Robert Arthur Schwarzer
Keyword(s):  
Crystallographic Texture ◽  
Plastic Anisotropy

scholarly journals Quantifying the Contribution of Crystallographic Texture and Grain Morphology on the Elastic and Plastic Anisotropy of bcc Steel

Metals ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 1252 ◽  
Author(s):  
Martin Diehl ◽  
Jörn Niehuesbernd ◽  
Enrico Bruder
Keyword(s):  
Young’S Modulus ◽  
Crystallographic Texture ◽  
Young's Modulus ◽  
Hsla Steel ◽  
Geometric Mean ◽  
Plastic Anisotropy ◽  
Grain Morphology ◽  
Strain Partitioning ◽  
Stress Strain ◽  
Full Field

The influence of grain shape and crystallographic orientation on the global and local elastic and plastic behaviour of strongly textured materials is investigated with the help of full-field simulations based on texture data from electron backscatter diffraction (EBSD) measurements. To this end, eight different microstructures are generated from experimental data of a high-strength low-alloy (HSLA) steel processed by linear flow splitting. It is shown that the most significant factor on the global elastic stress–strain response (i.e., Young’s modulus) is the crystallographic texture. Therefore, simple texture-based models and an analytic expression based on the geometric mean to determine the orientation dependent Young’s modulus are able to give accurate predictions. In contrast, with regards to the plastic anisotropy (i.e., yield stress), simple analytic approaches based on the calculation of the Taylor factor, yield different results than full-field microstructure simulations. Moreover, in the case of full-field models, the selected microstructure representation influences the outcome of the simulations. In addition, the full-field simulations, allow to investigate the micro-mechanical fields, which are not readily available from the analytic expressions. As the stress–strain partitioning visible from these fields is the underlying reason for the observed macroscopic behaviour, studying them makes it possible to evaluate the microstructure representations with respect to their capabilities of reproducing experimental results.

Microstructure, crystallographic texture, and plastic anisotropy evolution in an Mg alloy during equal channel angular extrusion processing

2011 ◽  
Vol 528 (25-26) ◽  
pp. 7616-7627 ◽  
Author(s):  
Majid Al-Maharbi ◽  
Ibrahim Karaman ◽  
Irene J. Beyerlein ◽  
David Foley ◽  
K. Ted Hartwig ◽  
...  
Keyword(s):  
Crystallographic Texture ◽  
Equal Channel Angular Extrusion ◽  
Plastic Anisotropy ◽  
Mg Alloy ◽  
Extrusion Processing ◽  
Angular Extrusion

Improved Plastic Anisotropy in Asymmetrically Rolled 6xxx Alloy

2010 ◽  
Vol 160 ◽  
pp. 165-170 ◽  
Author(s):  
Jurij J. Sidor ◽  
Roumen H. Petrov ◽  
Leo Kestens
Keyword(s):  
Crystal Plasticity ◽  
Crystallographic Texture ◽  
Plastic Anisotropy ◽  
Al Alloys ◽  
Strongly Correlated ◽  
Asymmetric Rolling ◽  
6Xxx Series ◽  
Plastic Responses

Formability, which is the property that characterizes the ability of a material to be deformed without fracture or necking, is strongly correlated to the crystallographic texture. Al alloys from the 6xxx series with non-conventional textures were produced by hot and cold asymmetric rolling processes. The plastic responses i.e. the formability of differently textured samples are characterized based on crystal plasticity modeling.

Simulation of Recrystallization and Recrystallization Textures in Aluminium Alloys

2012 ◽  
Vol 715-716 ◽  
pp. 399-406
Author(s):  
Olaf Engler
Keyword(s):  
Crystallographic Texture ◽  
Process Development ◽  
Plastic Anisotropy ◽  
Process Models ◽  
Detailed Knowledge ◽  
Recent Developments ◽  
History Of ◽  
Computer Based ◽  
Strain Paths ◽  
Evolution Of Microstructure

The control of the plastic anisotropy during forming of a metallic sheet requires detailed knowledge on its microstructure and, especially, crystallographic texture. During the thermo-mechanical processing of aluminium sheet products in commercial production lines the material experiences a complex history of temperature, time and strain paths, which result in alternating cycles of deformation and recrystallization with the associated changes in texture and microstructure. Thus, computer-based alloy and process development requires integration of models for simulating the evolution of microstructure, microchemistry and crystallographic texture into process models of the thermo-mechanical production of Al sheet. The present study focuses on recent developments in linking softening modules that simulate the progress of recovery and recrystallization with the following texture changes to deformation and microchemistry models.

Micromechanical modeling of plastic anisotropy and strain induced phase transformation in dual-elastoplastic phase materials

2003 ◽  
Vol 105 ◽  
pp. 139-147 ◽  
Author(s):  
F. Lani ◽  
Q. Furnémont ◽  
P. J. Jacques ◽  
F. Delannay ◽  
T. Pardoen
Keyword(s):  
Phase Transformation ◽  
Plastic Anisotropy ◽  
Micromechanical Modeling
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