Fatigue behaviour of friction stir processed AZ91 magnesium alloy produced by high pressure die casting

Journal Article · Thu Mar 15 04:00:00 EDT 2007 · Materials Characterization

DOI:https://doi.org/10.1016/j.matchar.2006.04.025· OSTI ID:21003535

Cavaliere, P ^[1]; De Marco, P P ^[1]

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1. INFM-Dept. of 'Ingegneria dell'Innovazione', Engineering Faculty, University of Lecce, Via per Arnesano, 73100, Lecce (Italy)

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 deg. C for 2 h and an ageing treatment at 220 deg. 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)

• OSTI ID: 21003535
• Journal Information: Materials Characterization, Journal Name: Materials Characterization Journal Issue: 3 Vol. 58; ISSN 1044-5803; ISSN MACHEX
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
AGING
ASTATINE 220
CASTING
CASTINGS
HEAT TREATMENTS
MAGNESIUM ALLOYS
PRESSURE RANGE MEGA PA 10-100
SCANNING ELECTRON MICROSCOPY
THERMAL FATIGUE
THERMAL FRACTURES