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Effect of different strain rates on compression property and work-hardening behavior for the NiAl-matrix composite with 1.7wt.% NbB2 and Nb x C
- Source :
-
Materials Science & Engineering: A . Feb2012, Vol. 534, p22-25. 4p. - Publication Year :
- 2012
-
Abstract
- Abstract: The microstructure, compression property and work-hardening effect of the NiAl-matrix composite with 1.7wt.% NbB2 and Nb x C (x =1 or 2) fabricated by the combustion synthesis and hot pressing technique have been investigated in the study. The NiAl-matrix composite has strong strain rate sensitivity. The yield strength of the NbB2–Nb x C/NiAl composite decreases while the fracture strain and the work-hardening capacity (H c) increase with decreasing strain rate. A high true ultimate strength of 1472MPa, a fracture strain of 20.1% and H c =1.41 were obtained under the strain rate of 2.0×10−5 s−1. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 09215093
- Volume :
- 534
- Database :
- Academic Search Index
- Journal :
- Materials Science & Engineering: A
- Publication Type :
- Academic Journal
- Accession number :
- 71511036
- Full Text :
- https://doi.org/10.1016/j.msea.2011.10.113