Plasticity analysis by synchrotron radiation in a Mg97Y2Zn1 alloy with bimodal grain structure and containing LPSO phase
| Autor: | Andreas Stark, G. Garcés, D.G. Morris, Shae-Kwang Kim, H. K. Lim, Chamini Lakshi Mendis, Paloma Adeva, Domonkos Tolnai, Pablo Pérez, N. Shell, M.A. Muñoz-Morris |
|---|---|
| Přispěvatelé: | Ministerio de Educación y Ciencia (España) |
| Rok vydání: | 2015 |
| Předmět: |
Materials science
Polymers and Plastics Alloy Metallurgy technology industry and agriculture Metals and Alloys Slip (materials science) engineering.material Plasticity Microstructure Electronic Optical and Magnetic Materials Condensed Matter::Materials Science Synchrotron radiation diffraction Deformation mechanism Deformation mechanisms Ceramics and Composites engineering Magnesium alloy Deformation (engineering) Composite material Crystal twinning Plastic deformation Internal stresses |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname |
| ISSN: | 1359-6454 |
| Popis: | © 2015 Acta Materialia Inc. All rights reserved. Deformation behaviour has been examined by synchrotron radiation diffraction in an extruded magnesium - long-period-stacking-order phase alloy comprising three components of microstructure. The variation of internal strains and intensities of the important crystallographic planes of the two phases has been examined during compression at several temperatures. The long-period-stacking-order phase remains elastic to stresses beyond the macroscopic yield stress while deformation in the magnesium matrix is dominated by twinning and basal slip, with the coarse-grained regions deforming plastically at stresses well below the macroscopic yield stress while regions with fine grain size deform plastically only at much higher stresses. We would like to acknowledge financial support of the Spanish Ministry of Education and Science under project number MAT2012-34135. We would like to acknowledge the expert support of Miguel Acedo and Edurne Laurin for assistance with the extrusion processing and the metallographical preparation, respectively. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect