Abstract
A gas pressure liquid metal infiltration technique for producing fiber reinforced Ni 3AljA120 3 and NiAljA1 20 3 composites has been described. Composite bars of 9.5 mm diameter, 150 rom long were produced. It was found necessary to add 0.5 at. %Ti to both Ni3Al and NiAl alloys to obtain adequate wetting. There was a strong tendency for liquid metal infiltration along one side of the fibers causing a shift of the fibers to the opposite side. No interface reaction zone was observed at optical magnifications up to 1000X. A composite of Ni3Al containing 33 volume percent of FP fibers fractured at 890 MPa which is approximately 3 times the yield strength of the matrix IC-50(21.73AI-O.34Zr-O.lBBalance Ni at.%) + 0.5 at.%Ti.
Original language | English (US) |
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Pages (from-to) | 57-78 |
Number of pages | 22 |
Journal | Advanced Materials and Manufacturing Processes |
Volume | 3 |
Issue number | 1 |
DOIs | |
State | Published - 1988 |
ASJC Scopus subject areas
- General Engineering
- Mechanics of Materials
- Mechanical Engineering
- Industrial and Manufacturing Engineering
- General Materials Science