ASSESSMENT OF THE STATE OF PRECIPITATION IN ALUMINUM CASTING A356.2 ALLOY USING NONDESTRUCTIVE MICROSTRUCTURE ELECTRONIC PROPERTY MEASUREMENTS

Journal Article · Mon Feb 22 04:00:00 EST 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3362216· OSTI ID:21371007

Kiattisaksri, P; Gibbs, P J; Koenig, K; Pfeif, E A; Mishra, B; Olson, D L ^[1]; Lasseigne, A N ^[2]; Mendez, P F ^[3]

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1. Colorado School of Mines, Golden, Colorado (United States)
2. Generation 2 Materials Technology LLC, Firestone, Colorado (United States)
3. University of Alberta, Edmonton, Alberta (Canada)

Application of nondestructive electronic property measurements to assess the strengthening of Mg{sub 2}Si precipitates in aluminum A356.2 casting has been demonstrated. The results indicated the evolution of precipitation phase through over aging with increased cooling time or thickness of the cast part. The classical optimum precipitation behavior has been characterized and verified with thermal analysis, thermoelectric power, low frequency impedance, and micro hardness measurements. A proposed practice to use nondestructive electronic property measurement tools to assess aluminum casting for acceptable mechanical properties after mold shake out is presented.

• OSTI ID: 21371007
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1211; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALKALINE EARTH METAL COMPOUNDS
ALLOYS
ALUMINIUM
ALUMINIUM ALLOYS
CASTING
COOLING TIME
CURRENTS
EDDY CURRENTS
ELECTRIC CURRENTS
ELECTRICAL PROPERTIES
ELEMENTS
FABRICATION
HARDNESS
IMPEDANCE
MAGNESIUM COMPOUNDS
MAGNESIUM SILICIDES
MATERIALS TESTING
MECHANICAL PROPERTIES
METALS
MICROHARDNESS
MICROSTRUCTURE
NONDESTRUCTIVE TESTING
PHYSICAL PROPERTIES
PRECIPITATION
SEPARATION PROCESSES
SILICIDES
SILICON COMPOUNDS
TESTING
THERMAL ANALYSIS
THERMOELECTRIC PROPERTIES