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Dispersion strengthening of precipitation hardened Al-Cu-Mg alloys prepared by rapid solidification and mechanical alloyingSeveral Al-4Cu-1Mg-1.5Fe-0.75Ce alloys have been processed from either rapidly solidified or mechanically alloyed powder using various vacuum degassing parameters and consolidation techniques. Strengthening by the fine subgrains, grains, and the dispersoids individually or in combination is more effective when the alloys contain shearable precipitates; consequently, the strength of the alloys is higher in the naturally aged rather than the artificially aged condition. The strengths of the mechanically alloyed variants are greater than those produced from prealloyed powder. Properties and microstructural features of these dispersion strengthened alloys are discussed in regards to their processing histories.
Document ID
19890047238
Document Type
Conference Paper
Authors
Gilman, P. S. (Allied-Signal, Inc. Morristown, NJ, United States)
Sankaran, K. K. (McDonnell Aircraft Co. Saint Louis, MO, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1988
Subject Category
METALLIC MATERIALS
Meeting Information
Dispersion Strengthened Aluminum Alloys(Phoenix, AZ)
Funding Number(s)
CONTRACT_GRANT: NAS1-16967
Distribution Limits
Public
Copyright
Other