To Study the Correlation between Microstructure and Mechanical Properties of AL-MG-CR Alloy after Work Hardening. | [Journal of Natural Sciences and mathematics • 2006]

Author(s):

1. M. N. Ishaq: Dept. of Physics, GCU. Lahore, Pakistan

2. S. Ali: Dept. of Physics, GCU. Lahore, Pakistan

3. S. T. A. Shah: Centre for Advanced Study of Physics, GCU. Lahore, Pakistan

Abstract:

The effect of cold-work and heat treatment on the microstructure development and changes occurred in the mechanical properties of Al-Mg-Cr alloy has been studied at large. The samples were homogenized at 573 K for one hour and allowed to cool at room temperature. X-ray fluorescence spectroscopy (XRF) was employed to ensure the exact elemental composition of the alloy. The samples were cold worked under normal static load of 30 KN with time variation to get 1% to 7% reduction in thickness. After work hardening the samples were aged for four hours at 373K. Optical microscopy was used to study the microstructure. Vickers hardness test was carried out to study hardness, which was improved as a result of work hardening. The steady state creep rate was found to be decreased as a result of above-mentioned treatment.

Page(s): 39-46

DOI: DOI not available

Published: Journal: Journal of Natural Sciences and mathematics, Volume: 46, Issue: 1--2, Year: 2006

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