On the microstructure and corrosion behavior of AZ91/SiC composites produced by rheocasting
Artikel i vetenskaplig tidskrift, 2016

The microstructure and atmospheric corrosion behavior of two types of SiC (10 vol%)-reinforced magnesium alloy metal matrix composites (Mg alloy AZ91D-based MMCs) produced by rheocasting (RC) were investigated and compared to the monolithic alloy. Micron-sized and nano-sized SiC particles were used for fabrication of the MMCs. Microstructural studies using a broad range of analytical techniques showed the formation Al carbides and MgO at the alpha-Mg/SiC interface. The higher corrosion rate of the MMCs than RC AZ91D was attributed to a lesser degree of connectivity of the beta phase, the high impurity level of SiC-reinforced MMCs and also the higher fraction of casting pores in the MMCs as compared to the RC alloy.

Composite materials

Microstructure

Magnesium alloy

Corrosion

Författare

Mohsen Esmaily

Chalmers, Kemi och kemiteknik, Energi och material, Oorganisk miljökemi

Nooshin Mortazavi Seyedeh

Chalmers, Fysik, Biologisk fysik

Jan-Erik Svensson

Chalmers, Kemi och kemiteknik, Energi och material, Oorganisk miljökemi

Mats Halvarsson

Chalmers, Fysik, Biologisk fysik

A. E. W. Jarfors

Högskolan i Jönköping

M. Wessen

Högskolan i Jönköping

R. Arrabal

Universidad Complutense de Madrid

Lars-Gunnar Johansson

Chalmers, Kemi och kemiteknik, Energi och material, Oorganisk miljökemi

Materials Chemistry and Physics

0254-0584 (ISSN)

Vol. 180 29-37

Ämneskategorier

Materialteknik

Styrkeområden

Materialvetenskap

DOI

10.1016/j.matchemphys.2016.05.016