Mahmoud Abbas
Suez University, P.O. Box 43533, Faculty of Petroleum and Mining Engineering Metallurgical and Material Engineering Dep. Assalam City, Suez, Egypt.
M.M. Sadawy
Al-Azhar University, Faculty of Engineering, Mining and Pet. Dept., Nasr City, P.O. Box 11371, Cairo, Egypt.
A.M. Hosny
Suez University, P.O. Box 43533, Faculty of Petroleum and Mining Engineering.
Influence of Tellurium on microstructure, mechanical and corrosion properties of Al–Zn-Mg alloys
Authors
Abstract
In the present paper, the microstructure, mechanical and corrosion properties of
Al–Zn-Mg alloys containing different contents of tellurium have been investigated. Optical
microscopy, SEM/EDX, hardness and different electrochemical techniques have been
utilized. The outcomes showed that additions of Te to the alloy, refined the grains and
offered improvements in corrosion resistance and the mechanical properties of Al-Zn-Mg
alloys. The grain size decreased from 17.11 to 78.09μm, while the hardness grew from 82,
to 107 (HB) with rising Te content to 0.5 wt. %. However, the findings proved that
increasing Te shifted the corrosion potentials to more negatives values.