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Article

Microstructure and Mechanical Properties of Particulate Reinforced NbMoCrTiAl High Entropy Based Composite

1
State Key Laboratory for Powder Metallurgy, Central South University, Changsha 410083, China
2
College of Mechanical and Energy Engineering, Shaoyang University, Shaoyang 422000, China
3
YuanMeng Precision Technology (Shenzhen) Institute, Shenzhen 518000, China
4
College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, China
*
Authors to whom correspondence should be addressed.
Entropy 2018, 20(7), 517; https://doi.org/10.3390/e20070517
Received: 13 June 2018 / Revised: 5 July 2018 / Accepted: 6 July 2018 / Published: 10 July 2018
(This article belongs to the Special Issue New Advances in High-Entropy Alloys)
A novel metal matrix composite based on the NbMoCrTiAl high entropy alloy (HEA) was designed by the in-situ formation method. The microstructure, phase evolution, and compression mechanical properties at room temperature of the composite are investigated in detail. The results confirmed that the composite was primarily composed of body-centered cubic solid solution with a small amount of titanium carbides and alumina. With the presence of approximately 7.0 vol. % Al2O3 and 32.2 vol. % TiC reinforced particles, the compressive fracture strength of the composite (1542 MPa) was increased by approximately 50% compared with that of the as-cast NbMoCrTiAl HEA. In consideration of the superior oxidation resistance, the P/M NbMoCrTiAl high entropy alloy composite could be considered as a promising high temperature structural material. View Full-Text
Keywords: high entropy alloys; metal matrix composites; mechanical properties high entropy alloys; metal matrix composites; mechanical properties
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MDPI and ACS Style

Li, T.; Liu, B.; Liu, Y.; Guo, W.; Fu, A.; Li, L.; Yan, N.; Fang, Q. Microstructure and Mechanical Properties of Particulate Reinforced NbMoCrTiAl High Entropy Based Composite. Entropy 2018, 20, 517. https://doi.org/10.3390/e20070517

AMA Style

Li T, Liu B, Liu Y, Guo W, Fu A, Li L, Yan N, Fang Q. Microstructure and Mechanical Properties of Particulate Reinforced NbMoCrTiAl High Entropy Based Composite. Entropy. 2018; 20(7):517. https://doi.org/10.3390/e20070517

Chicago/Turabian Style

Li, Tianchen, Bin Liu, Yong Liu, Wenmin Guo, Ao Fu, Liangsheng Li, Nie Yan, and Qihong Fang. 2018. "Microstructure and Mechanical Properties of Particulate Reinforced NbMoCrTiAl High Entropy Based Composite" Entropy 20, no. 7: 517. https://doi.org/10.3390/e20070517

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