Precipitation kinetics in an air-cooled aluminum alloy: A comparison of scanning and isothermal calorimetry measurement methods

Thermochimica Acta

Volumn 313, Issue 1, 1998, Pages 27-36

  Smith, George W ^a  

^a GENERAL MOTORS CORPORATION   (United States)

Author keywords

Aluminum alloy; Differential isothermal calorimetry; Differential scanning calorimetry; Kissinger analysis; Precipitation kinetics

Indexed keywords

EID: 0001647750     PISSN: 00406031     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0040-6031(97)00452-8     Document Type: Article

References (55)

1. Papazian J.M. Met. Trans. 12A:1981;269.
2. Papazian J.M. Met. Trans. 13A:1982;761.
3. Van Rooyan M., Sinte Maartensdijk J.A., Mittemeijer E.J. Met. Trans. 19A:1988;2433.
4. Antonione C., Marino F., Riontino G. Mat. Chem. and Phys. 20:1988;13.
5. Abis S., Donzelli G. J. Mat. Sci. Letters. 7:1988;51.
6. Papazian J.M. Met. Trans. 19A:1988;2945.
7. Jena A.K., Gupta A.K., Chaturvedi M.C. Acta. Metall. 37:1989;885.
8. Chaturvedi M.C., Gupta A.K., Jena A.K. Mat. Sci. and Eng. A110:1989;187.
9. Van Rooyen M., Mittemeijer E.J. Met. Trans. 20A:1989;1207.
10. Dutta I., Bourell D.L. Mat. Sci. and Eng. A112:1989;67.
11. Badini C., Marino F., Tomasi A. Mater. Chem. and Phys. 25:1990;57.
12. Zahra A.-M., Zahra C.Y. J. Thermal Anal. 36:1990;1465.
13. Badini C., Marino F., Tomasi A. Mater. Sci. and Eng. A136:1991;99.
14. M.J. Starink, P. Van Mourik, Met. Trans. 20A (1991) 665; M.J. Starink, V. Jooris, P. van Mourink, in: N. Hansen et al. (Eds.), Metal Matrix Composites - Processing, Microstructure and Properties, Risφ National Lab, Roskilde, Denmark, 1991, p. 675.
15. M.J. Starink, P. Van Mourik, Met. Trans. 20A (1991) 665; M.J. Starink, V. Jooris, P. van Mourink, in: N. Hansen et al. (Eds.), Metal Matrix Composites - Processing, Microstructure and Properties, Risφ National Lab, Roskilde, Denmark, 1991, p. 675.
16. Lee H.-L., Lu W.-H., Chan S.L.-I. Scripta Met. et Mat. 25:1991;2165.
17. Dutta I., Allen S.M., Hafley J.L. Met. Trans. 22A:1991;2553.
18. M.J. Starink, P. van Mourik, Mat. Sci. and Eng. A156 (1992) 183; M.J. Starink, A.M. Zahra, Thermochimica Acta 292 (1997) 159.
19. M.J. Starink, P. van Mourik, Mat. Sci. and Eng. A156 (1992) 183; M.J. Starink, A.M. Zahra, Thermochimica Acta 292 (1997) 159.
20. Kim T.S., Kim T.H., Oh K.H., Lee H.I. J. Mater. Sci. 27:1992;2599.
21. Dutta I., Harper C.P., Dutta G. Metallurg. and Materials Trans. 25A:1994;1591.
22. Garcia-Cordovilla C., Louis E., Narciso J., Pamies A. Mat. Sci. and Eng. A189:1994;219.
23. Thomas M.P., King J.E. J. Mat. Sci. 29:1994;5272.
24. Badini C., Marino F., Verne E. Mat. Sci. and Eng. A191:1995;185.
25. Oguocha I.N.A., Yannacoupoulos S. Mat. Sci. and Eng. A231:1997;25.
26. Kissinger H.E. Anal. Chem. 29:1957;1702.
27. Ozawa T. J. Thermal Anal. 2:1970;301.
28. R.L. Thakur, in: Advances in Nucleation and Crystallization of Glasses, Am. Ceram. Co., Columbus, 1972, p. 166 (cited in Ref. [29]).
29. Augis J.A., Bennett J.E. J. Therm. Anal. 13:1978;283.
30. Mittemeijer E.J., Cheng L., van der Schaaf P.J., Brakman C.M., Korevaar B.M. Met. Trans. 19A:1988;925.
31. Yinnon H., Uhlmann D.R. J. Non-Crystalline Solids. 54:1983;253.
32. J. Sestak, in: G. Svehla (Ed.), Comprehensive Analytical Chemistry, vol. XII, Part D, Elsevier, Amsterdam, 1984, p. 212, Ch. 9.
33. Smith G.W. Scripta Met. et Mat. 31:1994;357.
34. Smith G.W. Thermochimica Acta. 291:1997;59.
35. G.W. Smith, Thermochimica Acta 112 (1987) 289, (Refs. [33-38] illustrate application of DIC to phase separation and cure kinetics in liquid crystal/polymer systems).
36. Smith G.W., Vaz N.A. Liq. Cryst. 3:1988;543.
37. Smith G.W. Mol. Cryst. Liq. Cryst. 180B:1988;201.
38. Smith G.W. Mol. Cryst. Liq. Cryst. 196:1991;89.
39. Smith G.W. Int. J. Modern Phys. B7:1993;4187.
40. Smith G.W. Mol. Cryst. Liq. Cryst. 239:1994;63.
41. A. Zahra, in: H. Brodowsky, H.-J. Schaller (Eds.), Thermochemistry of Alloys, Kluwer Acad. Pub., 1989, p. 203.
42. Zahra A., Zahra C.Y., Laffitte M. Z. Metallkunde. 70:1970;669.
43. Zahra A., Zahra C.Y., Laffitte M., Lacom W., Degischer H.P. Z. Metallkunde. 70:1979;172.
44. Lacom W., Degischer H.P., Zahra A., Zahra C.Y. High Temperatures - High Pressures. 12:1980;549.
45. Zahra A., Zahra C.Y., Mathieu J.C. Z. Metallkunde. 71:1980;54.
46. Zahra A., Zahra C.Y., Dutkiewicz J., Ciach R. J. Mat. Sci. 25:1990;391.
47. Lacom W., Zahra C.Y., Zahra A.M. Scripta Met. 23:1989;2001.
48. Starink M.J., Zahra A.M. Materials Sci. Forum. 217-222:1996;795.
49. 5) and θ′ phases in Al/4.6Cu/0.4Mg/0.7Si.
50. In a chemical reaction consisting of several simultaneous elementary steps the overall reaction rate is given by adding the rates of the steps. (See, for example, G.W. Castellan, Physical Chemistry, Addison-Wesley, Reading, MA, 1964, p. 614).
51. lag is small, so that relatively few data points are excluded from fits of.
52. Jandel Scientific, San Rafael, CA.
53. Bruce Cassell, private communication.
54. -1. Since their precipitation peaks are somewhat broader than in the present case, their use of the higher scan rate seems consistent with expression (8) of the present work.
55. Such studies have indeed been completed for a solutionized aluminum alloy, and a paper has been submitted for publication.