%0 Journal Article %A Esquivel, J. %A Murdoch, H. A. %A Darling, K. A. %A Gupta, R. K. %D 2017 %T Excellent corrosion resistance and hardness in Al alloys by extended solid solubility and nanocrystalline structure %U https://tandf.figshare.com/articles/journal_contribution/Excellent_corrosion_resistance_and_hardness_in_Al_alloys_by_extended_solid_solubility_and_nanocrystalline_structure/5568187 %R 10.6084/m9.figshare.5568187 %2 https://ndownloader.figshare.com/files/9708397 %K Nanocrystalline alloys %K corrosion %K hardness %K high-energy ball milling %X

Development of ultra-high strength and corrosion-resistant aluminum (Al) alloys is demonstrated by a combination of suitable alloying elements and processing technology able to cause extended solid solubility and nanocrystalline structure. Binary Al-transition metal (M: Cr, Ni, Mo, Si, Ti, Mn, V, Nb) alloys, produced by high-energy ball milling and subsequent cold compaction, have exhibited significantly high hardness and corrosion resistance compared to any commercial Al alloy. The cyclic potentiodynamic polarization tests revealed a significant improvement in pitting and repassivation potentials. X-ray diffraction analysis revealed the grain refinement <100 nm and extended solid solubility.

IMPACT STATEMENT

High-energy ball-milled Al alloys, owing to excellent corrosion resistance and high hardness, are expected to be a new class of Al alloys and initiate a multidisciplinary research direction.

%I Taylor & Francis