Study of precipitates formation in Al-4.5 wt% Cu and Al-4.5 wt% Cu- 0.1 wt% In alloys using creep measurements and positron annihilation technique
Mahmoud, Moustafa;
Abstract
The transient and steady state creep deformation of Al-4.5 wt%Cu and Al-4.5 wt%Cu-0.1 wt%In alloys were studied using a constant stress in the aging temperatures range 403 to 703 K for various aging times under different working temperatures. Positron annihilation studies using Doppler−broadening measurements were carried out on the specimens used in creep measurements. The subsequent decrease and increase in the creep parameters n, β and εst as well as in Doppler line shape parameter with increasing aging temperatures and aging times were explained on the basis of structure transformations occurring in Al-Cu alloys. The mechanical creep measurements are very well correlated with positron annihilation characteristics.
Other data
Title | Study of precipitates formation in Al-4.5 wt% Cu and Al-4.5 wt% Cu- 0.1 wt% In alloys using creep measurements and positron annihilation technique | Authors | Mahmoud, Moustafa | Keywords | Alloys, Creep, Solder, microstructure | Issue Date | 2005 | Publisher | WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim | Journal | Cryst. Res.Technol. | Volume | 40 | Issue | 7 | Start page | 665 | End page | 671 | DOI | 10.1002/crat.200410405 |
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