1. Compression properties and work-hardening effect of the NiAl-matrix composite with TaB2 and TaB
- Author
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Zhao, H.L., Qiu, F., Jin, S.B., and Jiang, Q.C.
- Subjects
- *
METALLIC composites , *MICROSTRUCTURE , *STRAIN hardening , *METAL compression testing , *NICKEL-aluminum alloys , *STRAIN rate , *CERAMIC materials - Abstract
Abstract: The microstructure, compression property and work-hardening effect of the NiAl-matrix composite reinforced by 5 vol.% ceramic particulates (TaB and TaB2) were investigated. The compression properties and work-hardening capacity (H c) under the different strain rates were also investigated. The NiAl-matrix composite has strong strain rate sensitivity. A high true ultimate strength of 1399 MPa, a true fracture strain of 18.7% and H c = 1.84 were obtained under the strain rate of 1.0 × 10−4 s−1. The good compression properties may be attributed to the refinement of the grain size and the good combination between the ceramic particulates and the NiAl-matrix. [Copyright &y& Elsevier]
- Published
- 2012
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