Fatigue Behavior of Heat Treated AZ31 Magnesium Alloy
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This research was done by using three groups, of heat treated AZ31 Magnesium alloy. First group was as received samples, second group was recrystallization annealing samples and third group was solution treated samples. Fatigue test are carried out for applying forces (5, 7.5, 10, 15, and 17.5N) these forces convert to stresses. The stress values are (50.4, 75.6, 100.9, 151.3 and 176.5 Mpa). Fatigue curves have been recorded for heat treated AZ31 Magnesium alloy, also one specimen from each fatigue test group is subjected to hardness and surface roughness test. The results show the as received group fatigue when compared to recrystallization annealing and solution treatment , the failure occur in high number of cycling because of the alloy made by hot extrusion process so it has high compressive stress in addition to high strain hardening.
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