Phase Transitions and Stability of Group IV BCC Metals

Autor: R. P. S. Rathore, M. L. Verma, A. Verma
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