Journal
MATERIALS CHARACTERIZATION
Volume 58, Issue 3, Pages 226-232Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.matchar.2006.04.025
Keywords
FSP; AZ91; fatigue
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The room temperature fatigue properties of AZ91 magnesium alloy produced by high pressure die casting (HPDC) as cast, heat treated, friction stir processed (FSP) and FSP and heat treated were studied. The fatigue properties of the material were evaluated for the HPDC magnesium alloy in the as-received state and after a solution treatment at 415 degrees C for 2 h and an ageing treatment at 220 degrees C for 4 h. The heat treatment resulted in a significant increase in the fatigue properties of the HPDC material, while no significance influence of heat treatment was recorded in the FSP condition. The morphology of fracture surfaces was examined by employing a field emission gun scanning electron microscope (FEGSEM). (c) 2006 Elsevier Inc. All rights reserved.
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