Diehl, Martin ; Niehuesbernd, Jörn ; Bruder, Enrico (2019)
Quantifying the contribution of crystallographic texture and grain morphology on the elastic and plastic anisotropy of bcc steel.
In: Metals, 9 (12)
doi: 10.3390/met9121252
Artikel, Bibliographie
Dies ist die neueste Version dieses Eintrags.
Kurzbeschreibung (Abstract)
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.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2019 |
| Autor(en): | Diehl, Martin ; Niehuesbernd, Jörn ; Bruder, Enrico |
| Art des Eintrags: | Bibliographie |
| Titel: | Quantifying the contribution of crystallographic texture and grain morphology on the elastic and plastic anisotropy of bcc steel |
| Sprache: | Englisch |
| Publikationsjahr: | 2019 |
| Ort: | Basel |
| Verlag: | MDPI |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Metals |
| Jahrgang/Volume einer Zeitschrift: | 9 |
| (Heft-)Nummer: | 12 |
| Kollation: | 21 Seiten |
| DOI: | 10.3390/met9121252 |
| Zugehörige Links: | |
| Kurzbeschreibung (Abstract): | 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. |
| Freie Schlagworte: | anisotropy, linear flow splitting, crystal plasticity, DAMASK, texture, EBSD |
| Zusätzliche Informationen: | This article belongs to the Special Issue Dislocation Mechanics of Metal Plasticity and Fracturing |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 530 Physik |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Physikalische Metallkunde |
| Hinterlegungsdatum: | 17 Jan 2024 09:21 |
| Letzte Änderung: | 17 Jan 2024 09:21 |
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| Suche nach Titel in: | TUfind oder in Google |
Verfügbare Versionen dieses Eintrags
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Quantifying the Contribution of Crystallographic Texture and Grain Morphology on the Elastic and Plastic Anisotropy of bcc Steel. (deposited 16 Jan 2024 12:38)
- Quantifying the contribution of crystallographic texture and grain morphology on the elastic and plastic anisotropy of bcc steel. (deposited 17 Jan 2024 09:21) [Gegenwärtig angezeigt]
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