2022 journal article

Corrosion behavior of a bulk nanocrystalline Al-Fe alloy

CORROSION SCIENCE, 209.

By: F. Ozdemir n, C. Witharamage n, J. Christudasjustus n, A. Darwish n, H. Okuyucu* & R. Gupta n

co-author countries: Türkiye 🇹🇷 United States of America 🇺🇸
author keywords: Aluminum alloys; Nanocrystalline alloys; Corrosion; High-energy ball milling; Al -Fe alloy; Microstructure
Source: Web Of Science
Added: November 7, 2022

Nanocrystalline Al-Fe alloy, with uniform microstructure and high solid solubility of Fe, has been produced by high-energy ball milling. Cyclic potentiodynamic polarization tests revealed high pitting potential. Hardness and corrosion resistance of the Al-Fe alloy were higher than any commercial Al alloy. High hardness and corrosion resistance were attributed to the nanocrystalline structure and formation of solid solution. X-ray photoelectron spectroscopy, secondary ion mass spectrometry, and scanning transmission electron microscopy indicated the incorporation of Fe to the surface film and Fe enrichment at the alloy/surface film interface, which were attributed to the enhanced corrosion performance.