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Hot extrusion of B2 iron aluminide powdersThe objective of the study was to investigate the effect of powder and processing variables on the microstructure and resultant tensile properties of an extruded FeAlZrB alloy. For a given powder particle size, increasing the extrusion temperature from 1250 to 1450 K is found to increase the grain size and produce a more uniform microstructure. At high extrusion temperatures, where grain boundary mobility is high, powder size is not critical in determining the grain size. The addition of Y2O3 dispersion (1 vol pct) by mechanical alloying makes it possible to obtain very fine-grained materials at low and high extrusion temperatures.
Document ID
19880049933
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Strothers, S.
(Case Western Reserve Univ. Cleveland, OH, United States)
Vedula, K.
(Case Western Reserve University Cleveland, OH, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1987
Subject Category
Metallic Materials
Meeting Information
Meeting: 1987 Annual Powder Metallurgy Conference
Location: Dallas, TX
Country: United States
Start Date: May 17, 1987
End Date: May 20, 1987
Sponsors: Metal Powder Industries Federation and American Powder Metallurgy Institute.
Accession Number
88A37160
Distribution Limits
Public
Copyright
Other

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