International Science Community Association Research Journal of Engineering Sciences 2278-9472 12 3 2023 09 26 Study of the physical and mechanical properties in volume of TiAl by the MEAM method (B1, B2 and L10) 6 14 EN . Rahman 1 Industrial and Production Engineering Department, Shahjalal University of Science and Technology, Sylhet, Bangladesh M.L. Chowdury 2 Industrial and Production Engineering Department, Shahjalal University of Science and Technology, Sylhet, Bangladesh M.J. Alam 3 Industrial and Production Engineering Department, Shahjalal University of Science and Technology, Sylhet, Bangladesh M.R. Hasan 4 Industrial and Production Engineering Department, Shahjalal University of Science and Technology, Sylhet, Bangladesh MIMBOUI Yahnn J MIGHENSLE 1 Faculty of Science and Technology, Marien Ngouabi University, Congo Brazzaville and Research Group on Physical and Chemical Properties of Materials, Congo Brazzaville and Association Alpha Sciences Beta Technologies, Congo Brazzaville HONGUELET Alain S DZABANA 2 Faculty of Science and Technology, Marien Ngouabi University, Congo Brazzaville and Research Group on Physical and Chemical Properties of Materials, Congo Brazzaville and Association Alpha Sciences Beta Technologies, Congo Brazzaville NSONGO Timothée 3 Faculty of Science and Technology, Marien Ngouabi University, Congo Brazzaville and Geological and Mining Research Center, Congo Brazzaville > Research Paper 2023 3 26 2023 09 26 In this work, we present the results of our study on the physical and mechanical properties in volume of the Ti-Al binary alloy system. This work consisted in determining the physical and mechanical properties of different crystallographic structures (L10, B1 and B2) of the Ti-Al alloy using the Modified Embedded Atom Method (MEAM) as well as the MEAM potentials of titanium, aluminum and Ti-Al interaction. We used the LAMMPS calculation code, based on classical molecular dynamics, to determine the most stable structure of TiAl which remains the L10 structure with crystal parameters a=4.02Å and c=4.10Å followed by the B2 structure with parameter a=3.23Å. We also found that the B2 structure has more possibility of transiting to other structures. We have shown that the mechanical behavior of some structures are preferable to others such as L10 and B1 resist compression best while B2 resists stretching, The results (some) obtained, during this study, were calculated by other methods (DFT) compared with the theoretical results and show a considerable agreement.q Copyright@ International Science Community Association