Abstract
Analytical expressions describing the various thermodynamic phases in binary systems can be derived by the CALPHAD approach, whereby the parameters in these expressions are obtained from fits to measured phase equilibrium data. Extrapolations of these models can be used to predict metastable equilibria. Different thermodynamic models proposed for the Ni–Ti and the Cu–Ti systems are used to calculate the T0 curves that are relevant to the prediction of the glass-forming range in rapidly cooled molten alloys. Although all the models give acceptable fits for the equilibrium range for which they were derived, significant differences are found for the metastable regime. The problems that need to be addressed in order to improve the extrapolations into the metastable regime are discussed. Simple thermodynamic considerations predict that the glass-forming range for rapidly quenched alloys exceeds that for amorphous alloys synthesized by isothermal solid-state interdiffusion reactions.
References
27
Referenced
49
10.1016/0001-6160(85)90008-2
10.1016/0022-3093(85)90005-5
10.1016/0001-6160(69)90048-0
{'key': 'S0884291400001722_ref005', 'first-page': '203', 'volume-title': 'Proceedings of the 4th International Conference on Rapidly Quenched Metals', 'author': 'Massalski', 'year': '1981'}
/ Proceedings of the 4th International Conference on Rapidly Quenched Metals by Massalski (1981){'key': 'S0884291400001722_ref001', 'first-page': '205', 'volume-title': 'Proceedings of the 2nd International Conference on Rapidly Quenched Metals', 'author': 'Spaepen', 'year': '1976'}
/ Proceedings of the 2nd International Conference on Rapidly Quenched Metals by Spaepen (1976)10.1016/0022-3093(84)90538-6
{'key': 'S0884291400001722_ref020', 'first-page': '241', 'volume-title': 'Proceedings of the Materials Research Society', 'volume': '19', 'author': 'Massalski', 'year': '1982'}
/ Proceedings of the Materials Research Society by Massalski (1982)10.1007/BF02880329
{'key': 'S0884291400001722_ref004', 'first-page': '15', 'volume-title': 'Proceedings of the Materials Research Society', 'volume': '8', 'author': 'Boettinger', 'year': '1982'}
/ Proceedings of the Materials Research Society by Boettinger (1982)10.1016/S0022-3093(84)80002-2
{'key': 'S0884291400001722_ref008', 'volume-title': 'Computer Calculations of Phase Diagrams', 'author': 'Kaufman', 'year': '1970'}
/ Computer Calculations of Phase Diagrams by Kaufman (1970)10.1016/0364-5916(77)90018-9
{'key': 'S0884291400001722_ref010', 'first-page': '59', 'volume': '2', 'author': 'Kaufman', 'year': '1978', 'journal-title': 'CALPHAD'}
/ CALPHAD by Kaufman (1978)10.1016/0364-5916(85)90001-X
10.1016/0364-5916(78)90031-7
10.1016/0364-5916(78)90006-8
- 15 Saunders N. (private communication, 1985); Work cited in J. Murray, submitted to Bull. Alloy Phase Diagrams.
10.1016/0036-9748(86)90135-3
{'key': 'S0884291400001722_ref021', 'first-page': '421', 'volume': '55', 'author': 'Esin', 'year': '1981', 'journal-title': 'J. Phys. Chem.'}
/ J. Phys. Chem. by Esin (1981)- 24 Kui H. W. and Turnbull D. (in preparation, 1987).
10.1007/BF02652848
10.1103/PhysRevLett.51.415
10.1063/1.333962
10.1063/1.93647
10.1007/BF02643979
- 3The term “glass-forming range” is preferred here to the more commonly used term “glass-forming ability” to describe the composition range in which metallic glasses may be formed.
10.1088/0305-4608/13/3/006
Dates
Type | When |
---|---|
Created | 17 years, 11 months ago (Sept. 27, 2007, 5:15 a.m.) |
Deposited | 4 years, 6 months ago (Feb. 24, 2021, 4:41 p.m.) |
Indexed | 2 months, 1 week ago (June 21, 2025, 8:24 a.m.) |
Issued | 38 years, 1 month ago (Aug. 1, 1987) |
Published | 38 years, 1 month ago (Aug. 1, 1987) |
Published Online | 14 years, 7 months ago (Jan. 31, 2011) |
Published Print | 38 years, 1 month ago (Aug. 1, 1987) |