The Influence of Corrosion on the Microstructure of Thermally Treated ZA27/SiCp Composites

Tribology in Industry

M. Babić¹  S. Mitrović¹  A. Vencl²  B. Bobić³  I. Bobić⁴ 

[1] Faculty of Engineering, University of Kragujevac, Kragujevac, Serbia;Faculty of Mechanical Engineering, University of Belgrade, Belgrade, Serbia;Institute ″Goša″, Belgrade, Serbia;″Vinča″ Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia;

关键词: Metal-matrix composites;    ZA27 alloy;    Compocasting;    Thermal treatment;    Corrosion;    Microstructure;   

DOI  :  

来源: DOAJ

【 摘 要 】

The influence of corrosion on the microstructure of ZA27/SiCp composites was examined. The composites were produced by compo casting technique and then subjected to the thermal treatment (T4 regime). Microstructural examinations were performed after 30-day exposure of thermally treated composites in the sodium-chloride solution. Corrosion processes have occurred in the composite matrix. Corrosion did not affect SiC particles in the composites. The local progress of corrosion in depth of the composite matrix was noticed in micro-cracks. Corrosion resistance of ZA27/SiCp composites was evaluated based on the mass loss of composite samples during the immersion test. It was found that corrosion resistance of the composites decreased with increase in content of SiC particles. The applied thermal treatment had a negative influence on the corrosion resistance of ZA27/SiCp composites.

【 授权许可】

Unknown