THERMODYNAMIC ACTIVITIES AND PHASE BOUNDARIES FOR THE ALLOYS OF THE NI3AL-NI3TI PSEUDOBINARY SECTION IN THE NI-AL-TI SYSTEM

Authors
KAPALA J KATH D HILPERT K
Citation
J. Kapala et al., THERMODYNAMIC ACTIVITIES AND PHASE BOUNDARIES FOR THE ALLOYS OF THE NI3AL-NI3TI PSEUDOBINARY SECTION IN THE NI-AL-TI SYSTEM, Metallurgical and materials transactions. A, Physical metallurgy andmaterials science, 27(9), 1996, pp. 2673-2677
Citations number
14
Categorie Soggetti
Metallurgy & Metallurigical Engineering","Material Science
Journal title
Metallurgical and materials transactions. A, Physical metallurgy andmaterials science → ACNP
ISSN journal
10735623
Volume
27
Issue
9
Year of publication
1996
Pages
2673 - 2677
Database
ISI
SICI code
1073-5623(1996)27:9<2673:TAAPBF>2.0.ZU;2-4
Abstract
The pseudobinary section Ni3Al-Ni3Ti of the ternary Ni-Al-Ti system ha s been investigated by thermal analysis and Knudsen effusion mass spec trometry. The solidus of the pseudobinary section and the thermodynami c activities of Ni and Al have been determined in the alloys Ni0.75Al0 .25Tix of the compositions x = 0.00 to 0.21. Moreover, the thermodynam ic activities of Ni and Ti in Ni3Ti (x = 0.25) as well as the Gibbs en ergy of mixing of the Ni0.75Ti0.25 phase resulted. The ionization cros s-sectional ratio sigma(Ni)/sigma(Ti) = 0.77 has been evaluated for th e electron impact energy of 50 eV.