NDLI: Monotonic and Cyclic Characterization of Five Different Casting Processes on a Common Magnesium Alloy

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Jordon, J. B. Wang, L.
Copyright Year	2011
Abstract	The monotonic and cyclic behavior of five different casting processes for AZ91 magnesium alloy is evaluated through microstructure characterization and mechanical testing. A passenger car control arm was cast by squeeze cast, low pressure permanent mold, low pressure permanent mold-electricmagnetic-pump, T-mag, and ablation processes. Samples were cut from twelve locations of the control arm for microstructure characterization. The grain size, porosity fraction, and porosity size were measured via optical microscopy. Different types and sizes of defects were present in each type of casting processes. The mechanical behavior characterization included monotonic tension, and fully-reversed fatigue tests. Sources of fatigue crack initiation were quantified using scanning electron microscopy. For both monotonic and cyclic loading conditions, poor mechanical performance was directly linked to the presence of large pores, oxide films, and/or pore shrinkage clusters.
Sponsorship	Manufacturing Engineering Division
Starting Page	7
Ending Page	16
Page Count	10
File Format	PDF
ISBN	9780791844304
DOI	10.1115/MSEC2011-50173
Volume Number	ASME 2011 International Manufacturing Science and Engineering Conference, Volume 1
Conference Proceedings	ASME 2011 International Manufacturing Science and Engineering Conference
Language	English
Publisher Date	2011-06-13
Publisher Place	Corvallis, Oregon, USA
Access Restriction	Subscribed
Subject Keyword	Grain size Equipment performance Scanning electron microscopy Fatigue testing Mechanical behavior Magnesium alloys Shrinkage (materials) Automobiles Pressure Casting Optical microscopy Ablation (vaporization technology) Pumps Mechanical testing Tension Porosity Fatigue cracks
Content Type	Text
Resource Type	Article

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