中国有色金属学报(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 23 No. 10 October 2013 |
（1. Department of Physics, Faculty of Arts and Sciences, Dumlupinar University, Kutahya, Turkey;
2. Mechanical Engineering Department, Engineering Faculty, Gazi University, Ankara, Turkey
Received 7 January 2013; accepted 25 March 2013）
Abstract:Al-1.1%Sc and Al-2%Sc (mass fraction) alloys were prepared using gas atomized alloy particles. Samples from consolidated alloys were analyzed by XRD for the determination of lattice parameters. Using these lattice parameters, the mechanical properties of the alloys were calculated theoretically with WIEN2k and EMTO programs, respectively. The elasticity moduli of the experimentally produced alloys were compared with the theoretical calculation results. The calculated mechanical properties of Al3Sc phase and Al-Sc alloys were discussed to determine the optimum Sc content of Al-Sc alloys. It may be concluded that the Sc content should be the maximum about 1.0%, much more Sc addition could not improve the mechanical properties of the alloys.
Key words: Al-Sc alloy; lattice constant; elastic properties; Ab initio calculations; first principles
