Thermodynamic Assessment of the Al-Ba System |
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| Authors: | Xiaoheng Bao Libin Liu Yurong Jiang Yun Jiang Cun Mao Xian Li Ligang Zhang |
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| Affiliation: | 1.School of Materials Science and Engineering,Central South University,Changsha,People’s Republic of China;2.State Key Laboratory of Powder Metallurgy,Central South University,Changsha,People’s Republic of China;3.College of Automotive and Mechanical Engineering,Changsha University of Science and Technology,Changsha,People’s Republic of China |
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| Abstract: | The Al-Ba was thermodynamically optimized with the help of CALPHAD method. The solution phases such as liquid, fcc and bcc phases were modeled as substitutional solution phases. The excess Gibbs energies of these phases were treated with Redlich-Kister polynomial functions. A set of self-consistent thermodynamic parameters for describing various phases in the Al-Ba system was obtained, which can well reproduce the corresponding experimental data. The Al-Ba-Ni ternary system were also extrapolated based on the present binary system. |
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