Phase Transitions and Stability of Group IV BCC Metals
Autor: | R. P. S. Rathore, M. L. Verma, A. Verma |
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Rok vydání: | 1998 |
Předmět: | |
Zdroj: | Scopus-Elsevier |
ISSN: | 1898-794X 0587-4246 |
DOI: | 10.12693/aphyspola.93.479 |
Popis: | Born stability criteria were employed in the framework of extended generalised exponential potential to calculate the theoretical strength and range of stability of a perfect uniaxially stressed crystal lattice of group IV bcc metal titanium, zirconium, and hafnium. The analysis depicts two ranges of stability, a bcc phase and a body centered tetragonal phase. The computed value of theoretical strength and strain of bcc Ti, Zr and Hf agree satisfactorily with the experimental limits. The second-order elastic constants C11 and C12 were also computed. PACS numbers: 62.20.Dc |
Databáze: | OpenAIRE |
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