Change search
ReferencesLink to record
Permanent link

Direct link
A new semi-solid casting technique for fabricating SiC-reinforced Mg alloys matrix composites
Chalmers University of Technology.
Chalmers University of Technology.
Chalmers University of Technology.
Chalmers University of Technology.
Show others and affiliations
2016 (English)In: Composites Part B: Engineering, ISSN 1359-8368, E-ISSN 1879-1069, Vol. 94, 176-189 p.Article in journal (Refereed) Published
Abstract [en]

The capability of the newly developed rheocasting (RC) technique in combination with the RheoMetal process for producing SiC particulate-reinforced AM50 and AZ91D matrix composites (Mg-based MMCs) was investigated. The quality of the MMCs was studied by analyzing the fraction of casting pores, number density of SiC clusters and the uniformity of SiC particles. Solid fraction, particle size and oxidation of SiC particles had strong impacts on the overall quality of the MMCs. The MMCs produced by 40% solid fraction and oxidized micron-sized SiC particles exhibited an excellent casting quality. A low-quality MMC was obtained when non-oxidized sub-micron sized SiC particles were employed. The results showed the formation of various types intermetallic particles and carbides such as MgO, Mg2Si, Al2MgC2, Mg2C3, Al4C3 as the interfacial reaction products of SiC/Mg alloy’s melts. Mg hydride (α-MgH2) was also identified in inter-dendritic regions of the MMCs for the first time.

Place, publisher, year, edition, pages
Elsevier, 2016. Vol. 94, 176-189 p.
Keyword [en]
Metal-matrix composites (MMCs), Microstructure, Magnesium alloys, Casting
National Category
Metallurgy and Metallic Materials
URN: urn:nbn:se:hj:diva-29719DOI: 10.1016/j.compositesb.2016.02.019ISI: 000376052600018ScopusID: 2-s2.0-84962734666OAI: diva2:917480
Available from: 2016-04-06 Created: 2016-04-06 Last updated: 2016-11-29Bibliographically approved

Open Access in DiVA

The full text will be freely available from 2018-05-01 08:00
Available from 2018-05-01 08:00

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Wessén, MagnusJarfors, Anders E.W.
By organisation
JTH. Research area Materials and manufacturing – Casting
In the same journal
Composites Part B: Engineering
Metallurgy and Metallic Materials

Search outside of DiVA

GoogleGoogle Scholar

Altmetric score

Total: 103 hits
ReferencesLink to record
Permanent link

Direct link