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Mechanical alloying, characterization and consolidation of Ti-Al-Ni alloysMechanical alloying is being investigated as a processing route for the production of aluminide intermetallics. This program involves powder production and characterization, consolidation and thermal treatments and determination of microstructure-property relationships. An attritor mill is being used to produce powder in lots up to 1000 grams and the processing parameters are being systematically varied to establish the optimum milling conditions. The mill is being instrumented to generate data related to the processing to provide a basis for theoretical modeling. Powder is being characterized using thermal analysis, optical and electron microscopy and X-ray diffraction. Particle size distributions and powder density are being determined. Consolidation of the powder is being approached in several different ways including, cold isostatic pressing, sintering, extrusion and hot pressing. The results of the program so far will be presented and future directions discussed.
Document ID
19910036230
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Nash, P.
(Illinois Inst. of Tech. Chicago, IL, United States)
Higgins, G. T.
(Illinois Inst. of Tech. Chicago, IL, United States)
Dillinger, N.
(Illinois Inst. of Tech. Chicago, IL, United States)
Hwang, S. J.
(Illinois Inst. of Tech. Chicago, IL, United States)
Kim, H.
(Illinois Institute of Technology Chicago, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1989
Subject Category
Metallic Materials
Meeting Information
Meeting: 1989 Powder Metallurgy Conference and Exhibition
Location: San Diego, CA
Country: United States
Start Date: June 11, 1989
End Date: June 14, 1989
Accession Number
91A20853
Funding Number(s)
CONTRACT_GRANT: NCC3-101
Distribution Limits
Public
Copyright
Other

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