Cluster Interactions and Thermodynamic Properties of Al-Transition Metal alloys
Recent interest in Al-transition metal alloys is motivated both by their desirable technological properties1 and by their basic scientific interest, including recently discovered phenomena such as icosahedral phase formation.2 To perform calculations of the properties of these alloys at an atomistic level, it is necessary to ascertain the basic physical mechanisms underlying bonding and ordering. In this paper we study these mechanisms by calculating cluster interactions describing atomic rearrangements on a fixed underlying fcc lattice. We then use these interactions to analyze the systematics of heats of formation, solid solubilities, and structural preferences in Al-transition metal alloys.
KeywordsMetal Alloy Cluster Interaction Early Transition Metal Basic Physical Mechanism Alloy Phase Stability
Unable to display preview. Download preview PDF.
- 1.See, for example, L. F. Mandolfo, Aluminum Alloys: Structure and Properties (Butterworths, Boston, 1976).Google Scholar
- 2.b.For an overview, see C. L. Henley, Comm. Cond. Mat. Phys. 13, 59 (1987).Google Scholar
- 6.A. E. Carlsson, Phys. Rev. B 35, 4858 (1987).Google Scholar
- 7.A. E. Carlsson and J. M. Sanchez, Solid State Comm., in press.Google Scholar
- 11.R. Hultgren, R. D. Desai, D. T. Hawkins, M. Gleiser, and K. K. Kelley, Selected Values of the Thermodynamic Properties of Binary Alloys (American Society for Metals, Metals Park, Ohio, 1973).Google Scholar
- 14.P. Villars and L. D. Calvert, Pearson’s Handbook of Crystallographic Data for Intermetallic Phases (American Society for Metals, Metals Park, Ohio, 1985).Google Scholar