On the microstructure and corrosion behavior of AZ91/SiC composites produced by rheocasting
Journal article, 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.

Corrosion

Magnesium alloy

Microstructure

Composite materials

Author

Mohsen Esmaily

Chalmers, Chemistry and Chemical Engineering, Energy and Material, Environmental Inorganic Chemistry

Nooshin Mortazavi Seyedeh

Chalmers, Physics, Materials Microstructure

Jan-Erik Svensson

Chalmers, Chemistry and Chemical Engineering, Energy and Material, Environmental Inorganic Chemistry

Mats Halvarsson

Chalmers, Physics, Biological Physics

A. E. W. Jarfors

School of engineering Jönköping university

M. Wessen

School of engineering Jönköping university

R. Arrabal

Complutense University

Lars-Gunnar Johansson

Chalmers, Chemistry and Chemical Engineering, Energy and Material, Environmental Inorganic Chemistry

Materials Chemistry and Physics

0254-0584 (ISSN)

Vol. 180 29-37

Subject Categories

Materials Engineering

Areas of Advance

Materials Science

DOI

10.1016/j.matchemphys.2016.05.016

More information

Latest update

10/29/2018