Effect of different strain rates on compression property and work-hardening behavior for the NiAl-matrix composite with 1.7 wt.% NbB2 and NbxC
Effect of different strain rates on compression property and work-hardening behavior for the NiAl-matrix composite with 1.7 wt.% NbB2 and NbxC
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效果%20%20不同%20应变%20率%20对%20压缩%20性能%20和%20加工硬化%20行为%20对于%20%20NiAl-基体%20复合%20与%201.7%20wt.%%20NbB2%20和%20NbxC
DOI:
10.1016/j.msea.2011.10.113
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发表时间:
2012-02
期刊:
影响因子:
6.4
通讯作者:
Jiang, Q. C.
中科院分区:
文献类型:
--
作者:
Zhao, H. L.;Qiu, F.;Jin, S. B.;Jiang, Q. C.
The microstructure, compression property and work-hardening effect of the NiAl-matrix composite with 1.7wt.% NbB2and NbxC (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–NbxC/NiAl composite decreases while the fracture strain and the work-hardening capacity (Hc) increase with decreasing strain rate. A high true ultimate strength of 1472MPa, a fracture strain of 20.1% and Hc=1.41 were obtained under the strain rate of 2.0×10−5s−1.
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