Synthesis and characterization of an in situ consolidated nanocrystalline Cu88Al11.5Y0.5 alloy

Sikdar, Koushik; Chakravarty, Somraj; Roy, Debdas; Scattergood, R.O.; Koch, Carl C.

doi:10.1016/j.jallcom.2017.05.092

Cited by 9 publications

(1 citation statement)

References 36 publications

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“…High-energy ball milling performed under certain specific conditions has been reported to result in fully consolidated samples in the form of coarse particles, discs, or spheres depending on the material. Such formation of larger particles is termed in situ consolidation (ISC), which has been reported for only a few materials, e.g., Zn 17,18 , Cu [19][20][21] , Fe-Cr-Ni 22 , Al-Pb-W 23 , and Al-Cr 8 . Synthesizing in situ consolidated nanocrystalline Al alloys and studying their properties is beneficial in studying the microstructure and the corrosion mechanisms of ball-milled alloys.…”

Section: Introductionmentioning

confidence: 99%

Corrosion behavior of an in situ consolidated nanocrystalline Al-V alloy

et al. 2022

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Supersaturated solid solutions of Al and corrosion-resistant alloying elements (M: V, Mo, Cr, Ti, Nb), produced by non-equilibrium processing techniques, have been reported to exhibit high corrosion resistance and strength. The corrosion mechanism for such improved corrosion performance has not been well understood. We present a fundamental understanding of the role of V in corrosion of an Al-V alloy, which will provide a theoretical background for developing corrosion-resistant Al alloys. High-energy ball milling of the elemental powder of Al and V produced an in situ consolidated Al-V alloy, which exhibited high solid solubility of V. The corrosion resistance of Al-V alloy was significantly higher than that of pure Al, which was attributed to the (1) enrichment of V at the passive film/substrate interface, (2) incorporation of V into the passive film, and (3) deposition of V on the iron-containing cathodic particles and therefore, retardation of cathodic reaction.

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