Nickel aluminide (Ni{sub 3}Al) fabricated by reactive infiltration

Book · Sat Jul 01 00:00:00 EDT 1995

OSTI ID:72488

Chen, Y; Chung, D D.L. ^[1]

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1. State Univ. of New York, Buffalo, NY (United States). Composite Materials Research Lab.

Nickel aluminide Ni{sub 3}Al in single phase form, with grain size {approximately}10{mu}m and porosity {approximately}5%, was fabricated by reactive infiltration of liquid aluminum into a nickel particle preform containing 78 vol.% nickel and 12 vol.% porosity. The nickel preform was prepared by wet forming and then sintering. (Prior to sintering, the preform contained 58 vol.% nickel.) The preform was made from nickel particles of size 3--7 {mu}m. The Ni{sub 3}Al obtained exhibited tensile strength 425 MPa, modulus 92 GPa and ductility 9.5%.

• OSTI ID: 72488
• Report Number(s): CONF-941144--; ISBN 1-55899-265-0
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM ALLOYS
EXPERIMENTAL DATA
FABRICATION
HEAT RESISTING ALLOYS
INTERMETALLIC COMPOUNDS
MECHANICAL PROPERTIES
MICROSTRUCTURE
NICKEL BASE ALLOYS