scholarly journals Microstructure and Mechanical Behavior of AlCoCrFeNi HEA Particles Reinforced 6063Al Alloy Matrix Composites

2021 ◽  
pp. X
Author(s):  
Shaofeng YANG ◽  
Zelin LIU ◽  
Zhiyuan ZHOU ◽  
Jinhong PI
Keyword(s):  
Hot Extrusion ◽  
Microstructural Characterization ◽  
High Entropy Alloy ◽  
Matrix Composites ◽  
Alloy Matrix ◽  
High Entropy ◽  
Reinforced Composite ◽  
6063 Aluminum Alloy ◽  
Lightweight Composites ◽  
Properties Of Composites

Lightweight composites consisting of 6063 aluminum alloy matrix reinforced with AlCoCrFeNi high-entropy alloy (HEA) particles were fabricated by the powder metallurgy through hot pressing and hot extrusion under vacuum. A detailed microstructural characterization was carried out along with the analysis of mechanical properties. The results revealed that the observed uniform distribution of HEA powders and a good bonding strength resulted in an effective strengthening and increased plastic strain of the reinforced composite. The tensile properties of composites were effectively improved by the addition of 10 and 30 vol % of reinforcing HEA particles.

Excellent mechanical properties of in-situ TiC/FeCrNiCuV0.1 high entropy alloy matrix composites

2019 ◽  
Vol 257 ◽  
pp. 126729 ◽  
Author(s):  
Hao Wu ◽  
Sirui Huang ◽  
Chengyan Zhu ◽  
Heguo Zhu ◽  
Zonghan Xie
Keyword(s):  
Mechanical Properties ◽  
High Entropy Alloy ◽  
Matrix Composites ◽  
Alloy Matrix ◽  
High Entropy ◽  
In Situ Tic

Microstructure and Properties of TiB2/AlFeNiCoCr Composites by Spark Plasma Sintering

2020 ◽  
Vol 842 ◽  
pp. 83-89
Author(s):  
Dai Hong Xiao ◽  
Min Dong Wu
Keyword(s):  
Spark Plasma Sintering ◽  
Phase Evolution ◽  
High Entropy Alloy ◽  
Matrix Composites ◽  
X Ray Diffraction ◽  
Alloy Matrix ◽  
High Entropy ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Temperature And Pressure

TiB2/AlFeNiCoCr high-entropy-alloy-matrix composites were fabricated by spark plasma sintering. Effects of SPS process on microstructure and mechanical properties of 0.5 vol.% TiB2/AlFeNiCoCr composites were studied using X-ray diffraction, density testing, scanning electron microscopy, mechanical property testing. It is shown that increasing of sintering temperature and pressure can improve the relative density and compressive properties of 5 vol. %TiB2/AlCoCrFeNi composites. During the spark plasma sintering, there is phase evolution in the composites. The 5 vol. % TiB2/AlCoCrFeNi composite after sintering at 1200 °C and 30 ~ 45 MPa is composed of phases BCC, B2, FCC, σ and TiB2.

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