Effect of Solute Content and Temperature on the Deformation Mechanisms and Critical Resolved Shear Stress in Mg-Al and Mg-Zn Alloys

Wang, De-Yi and Li, Na and Alizadeh Balochi, Reza and Monclús, M. A. and Cui, Yuwen and Molina Aldareguía, Jon M. and Llorca Martinez, Francisco Javier (2019). Effect of Solute Content and Temperature on the Deformation Mechanisms and Critical Resolved Shear Stress in Mg-Al and Mg-Zn Alloys. "Acta Materialia", v. 170 ; pp. 155-165. ISSN 1359-6454. https://doi.org/10.1016/j.actamat.2019.03.027.

Description

Title: Effect of Solute Content and Temperature on the Deformation Mechanisms and Critical Resolved Shear Stress in Mg-Al and Mg-Zn Alloys
Author/s:
  • Wang, De-Yi
  • Li, Na
  • Alizadeh Balochi, Reza
  • Monclús, M. A.
  • Cui, Yuwen
  • Molina Aldareguía, Jon M.
  • Llorca Martinez, Francisco Javier
Item Type: Article
Título de Revista/Publicación: Acta Materialia
Date: 15 May 2019
ISSN: 1359-6454
Volume: 170
Subjects:
Freetext Keywords: Mg Alloys, Solution Hardening, Basal Slip, Micropillar Compression, Diffusion Couples
Faculty: E.T.S.I. Caminos, Canales y Puertos (UPM)
Department: Ciencia de los Materiales
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The influence of solute atoms (Al and Zn) on the deformation mechanisms and the critical resolved shear stress for basal slip in Mg alloys at 298 K and 373 K was ascertained by micropillar compression tests in combination with high-throughput processing techniques based on the diffusion couples. It was found that the presence of solute atoms enhances the size effect at 298 K as well as the localization of deformation in slip bands, which is associated with large strain bursts in the resolved shear stress (tRSS)-strain (ε) curves. Deformation in pure Mg and Mg alloys was more homogeneous at 373 K and the influence of the micropillar size on the critical resolved shear stress was much smaller. In this latter case, it was possible to determine the effect of solute content on the critical resolved shear stress for basal slip in MgAl and Mg-Zn alloys.

Funding Projects

TypeCodeAcronymLeaderTitle
Horizon 2020669141VIRMETALInstituto IMDEA MaterialesVirtual Design, Virtual Processing and Virtual Testing of Metallic Materials
Government of SpainFJCI-2016-29660UnspecifiedAlizadeh Balochi, RezaJuan de la Cierva-formación de la Agencia Estatal de Investigación
Madrid Regional GovernmentP2018/NMT- 4381MAT4.0-CMUnspecifiedFabricación inteligente de materiales avanzados para el transporte, la energía y la salud

More information

Item ID: 55494
DC Identifier: http://oa.upm.es/55494/
OAI Identifier: oai:oa.upm.es:55494
DOI: 10.1016/j.actamat.2019.03.027
Official URL: https://www.sciencedirect.com/science/article/pii/S1359645419301703
Deposited by: Memoria Investigacion
Deposited on: 21 Jun 2019 15:44
Last Modified: 03 Apr 2020 14:15
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