Advanced search
Start date
Betweenand
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Towards a morphological control of Mg2Si and superior tensile properties of high-Zn Mg-0.6Si (-Zn) alloys

Full text
Author(s):
de Gouveia, Guilherme Lisboa [1] ; Garcia, Amauri [2] ; Spinelli, Jose Eduardo [3, 1]
Total Authors: 3
Affiliation:
[1] Univ Fed Sao Carlos, Grad Program Mat Sci & Engn, BR-13565905 Sao Carlos, SP - Brazil
[2] Univ Estadual Campinas, Dept Mfg & Mat Engn, BR-13083860 Campinas, SP - Brazil
[3] Univ Fed Sao Carlos, UFSCar, Dept Mat Engn, BR-13565905 Sao Carlos, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: Materials Letters; v. 299, SEP 15 2021.
Web of Science Citations: 0
Abstract

In this study it was found that Mg-0.6Si-Zn alloys with a high Zinc (Zn) content (>2 wt%) can generate fine fibrous Mg2Si particles, as long as the solidification cooling rates could be supervised. Due to the solubility of Zn in Mg and the morphology of Mg2Si fibers, improved tensile properties were obtained for samples having refined dendritic arrangements. These results open the perspective of development of Mg-Si alloys with higher Zn contents, with greater strength and ductility due to microstructural control. Although there is a considerable difference in Zn alloying between them, both the Mg-0.6wt.%Si-2.0wt. %Zn and Mg-0.6wt.%Si-3.0wt.%Zn alloys have reached quite close optimum levels of tensile properties of the order of 200 MPa and 9%. (C) 2021 Elsevier B.V. All rights reserved. (AU)

FAPESP's process: 19/23673-7 - Evaluation of alloys for thermal interface contact and for additive manufacturing
Grantee:José Eduardo Spinelli
Support Opportunities: Regular Research Grants
FAPESP's process: 19/22163-5 - Microstructures, morphologies and mechanical properties of Mg-Si eutectic
Grantee:Felipe Escher Saldanha
Support Opportunities: Scholarships in Brazil - Scientific Initiation
FAPESP's process: 19/01432-8 - Microstructure development, corrosion and mechanical resistances of Mg-Si and Mg-Si-(x) alloys for biomedical application
Grantee:Guilherme Lisboa de Gouveia
Support Opportunities: Scholarships in Brazil - Doctorate