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Strengthening of nanocrystalline Al using grain boundary solute additions: Effects of thermal annealing and ion irradiation by Sung Eun Kim; Nisha Verma; Sezer Özerinç; Soumyajit Jana; Sourav Das; P. Bellon; R.S. Averback is a Engineering article available to read on EtoBox.
What is Strengthening of nanocrystalline Al using grain boundary solute additions: Effects of thermal annealing and ion irradiation about?
Strengthening of nanocrystalline Al by grain boundary solute additions was investigated for a series of dilute aluminum alloys, Al-Sc, Al-Sb, Al-Cr, and Al-W with grain sizes in the range of 50–200 nm. Thermal annealing of the alloys at low temperatures led to alloy softening, but with negligible change in the grain size. The reduction in strength can be attributed to the loss of solute in the grain boundaries arising from grain boundary diffusion and precipitation. Annealing at higher temperatures led to grain growth, but with little additional loss of strength, a result of precipitation hardening. The Al-Sc and Al-Sb alloys were additionally subjected to ion irradiation at various temperatures. These studies revealed that annealed samples regained their hardness due to solute redistribution by ion beam mixing. Alloy strength was independent of grain size between 50 and 150 nms. Irradiation-induced segregation of Sb to grain boundaries in Al-Sb further enhanced strengthening.
Who reads Strengthening of nanocrystalline Al using grain boundary solute additions: Effects of thermal annealing and ion irradiation?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Sung Eun Kim; Nisha Verma; Sezer Özerinç; Soumyajit Jana; Sourav Das; P. Bellon; R.S. Averback
- Publisher
- Elsevier BV
- Published
- 2022
- Language
- EN
- Field
- Engineering (Physical Sciences)