Formation of a metastable ferromagnetic tau phase during containerless melt processing in Mn-Al-C alloysThis paper reports the production of a metastable ferromagnetic tau phase directly from the melt in Mn(0.55)Al(0.433)C(0.017), using a containerless processing method involving levitation melting followed by quenching. Using the results from differential thermal analysis measurements and an analysis of the phase equilibria, it was found that the minimum amount of undercooling level required for ferromagnetic metastable tau phase formation in this alloy was Delta T = 87 K. The attainment of this undercooling may be facilitated by the application of containerless melt processing.
Document ID
19930038675
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Kim, Y. J. (NASA Headquarters Washington, DC United States)
Perepezko, J. H. (Wisconsin Univ. Madison, United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1993
Subject Category
Materials Processing
Report/Patent Number
AIAA PAPER 93-0267
Meeting Information
Meeting: AIAA, Aerospace Sciences Meeting and Exhibit