Preparation, structure and mechanical properties of RuAl and (Ru,Ni)Al alloys
Book
·
OSTI ID:571880
- Univ. of Oxford (United Kingdom). Dept. of Materials
The intermetallic compound, RuAl with B2 CsCl type structure, has been shown to possess room-temperature toughness and plasticity. NiAl also forms a B2 compound and it is claimed that a pseudo-binary compound, (Ru,Ni)Al, may be formed because the difference in lattice parameter between the two binary phases is slight. In this work a study has been made of the mechanical properties of some polycrystalline compounds, across the RuAl-(Ru,Ni)Al pseudo-binary, prepared from high-purity elemental powders. Compressive yield stresses were measured between room-temperature and 900 C, and the mechanisms of plastic flow are discussed in relation to the dislocation structures observed by TEM. Hot-microhardness tests were made to provide an indication of the effect of solid-solution hardening.
- OSTI ID:
- 571880
- Report Number(s):
- CONF-961202--
- Country of Publication:
- United States
- Language:
- English
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