Characterization of the evolution of the volume fraction of precipitates in aged AlMgSiCu alloys using DSC technique
- Department of Mechanical Engineering, University of Waterloo, 200 University Ave. West, Waterloo, ON, N2L 3G1 (Canada)
- Novelis Global Technology Centre, P. O. Box 8400, Kingston, ON, K7L 5L9 (Canada)
Differential scanning calorimetry is used to quantify the evolution of the volume fraction of precipitates during age hardening in AlMgSiCu alloys. The calorimetry tests are run on alloy samples after aging for various times at 180 deg. C and the change in the collective heat effects from the major precipitation and dissolution processes in each run are used to determine the precipitation state of the samples. The method is implemented on alloys with various thermal histories prior to artificial aging, including commercial pre-aging histories. The estimated values for the relative volume fraction of precipitates are compared with the results from a newly developed analytical method using isothermal calorimetry and a related quantitative transmission electron microscopy work. Excellent agreement is obtained between the results from various methods.
- OSTI ID:
- 20833172
- Journal Information:
- Materials Characterization, Vol. 55, Issue 4-5; Other Information: DOI: 10.1016/j.matchar.2005.07.007; PII: S1044-5803(05)00170-1; Copyright (c) 2005 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 1044-5803
- Country of Publication:
- United States
- Language:
- English
Similar Records
Quantitative evaluation of precipitates in an Al-Zn-Mg-Cu alloy after isothermal aging
High-Resolution Electron Microscopy and Kinetic Studies of Precipitation Hardening Reactions in Cast Al-5.8Zn-2.2Mg-2.5Cu