The Influence of Transition Metals Addition on the Corrosion Resistance of Nanocrystalline Al Alloys Produced by Mechanical Alloying

Metals

Mohammed Asif Alam¹  Muneer Baig¹  Asiful Hossain Seikh¹  Hany Rizk Ammar² 

[1] AMI-Center of Excellence for Research in Engineering Material, King Saud University, Riyadh 11421, Saudi Arabia;Metallurgical and Materials Engineering Department, Faculty of Petroleum and Mining Engineering, Suez University, Suez 41522, Egypt;

关键词: nanocrystalline aluminum alloy;    mechanical alloying;    corrosion;    polarization;    EIS;   

DOI  :  10.3390/met6060140

来源: DOAJ

【 摘 要 】

The corrosion resistance of nanocrystalline Al, Al-10 wt. % Fe and Al-10 wt. % Fe-5 wt. % Cr alloys was investigated in 3.5% NaCl solution using cyclic potentiodynamic polarization (CPP) and electrochemical impedance spectroscopy (EIS) techniques. The alloys were fabricated using mechanical alloying (MA) and heat induction sintering. When compared with the corrosion resistance of pure Al, the experimental results indicated that the addition of 10 wt. % Fe and 10 wt. % Fe-5 wt. % Cr to pure Al has resulted in an enhancement in the corrosion resistance of these newly fabricated alloys. The resistance to corrosion is due to enhanced microstructural stability along with the formation of stable oxide layer.

【 授权许可】

Unknown