NiAl sintered under high pressure and at low temperature
- Beijing Inst. of Technology (China). Metal Materials Section
- Academia Sinica, Beijing (China). Inst. of Physics
Since NiAl, with an ordered B2 structure, shows many favorable properties for high temperature structural applications, various processes, such as rapid solidification, mechanical alloying, Bridgman single crystal growth, reaction sintering (RS), hot pressure reaction sintering, and reaction hot isostatic pressure (RHIP), have been employed in recent years to manufacture the intermetallic and its composite for improving the mechanical properties. In the present work, the stoichiometric and nickel-rich NiAl are manufactured employing a new high pressure reaction sintering (HPRS) process under a pressure up to 2GPa and lower sintering temperature down to 500 C. NiAl microstructures and microhardness, and compressive mechanical properties at room temperature are reported in this paper.
- OSTI ID:
- 231090
- Journal Information:
- Scripta Metallurgica et Materialia, Vol. 30, Issue 2; Other Information: PBD: 15 Jan 1994
- Country of Publication:
- United States
- Language:
- English
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