NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
A review of rapid solidification studies of intermetallic compoundsA review of rapid solidification studies of high-temperature ordered intermetallic compounds is presented. Emphasis is on the nickel - and iron- aluminides which are of potential interest as structural materials. The nickel-base aluminides which have been rapidly solidified exhibit changes in grain size, compositional segregation, and degree of long range order (as reflected in APB size and distribution) which markedly affect mechanical properties. Some experiments indicate the formation of a metastable L1(2) phase in rapidly solidified Fe-(Ni,Mn)-Al-C alloys, while other work observes only a metastable fcc phase in the same composition range. The metastable phases and/or microstructures in both nickel and iron aluminides are destroyed by annealing at temperatures above 750 K, with subsequent degradation of mechanical properties. Rapid solidification studies of several other intermetallic compounds are briefly noted.
Document ID
19860062522
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Koch, C. C.
(North Carolina State University Raleigh, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1985
Subject Category
Metallic Materials
Accession Number
86A47260
Funding Number(s)
CONTRACT_GRANT: NAG8-475
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available