Phase evolution and wear mechanism of AlCoCrFeNiSix high-entropy alloys produced by arc melting

2018 ◽  
Vol 5 (9) ◽  
pp. 096505 ◽  
Author(s):  
Bingqian Jin ◽  
Nannan Zhang ◽  
Fengzhen Wang ◽  
Yue Zhang ◽  
Deyuan Li
Keyword(s):  
Wear Mechanism ◽  
Phase Evolution ◽  
High Entropy Alloys ◽  
High Entropy ◽  
Arc Melting

Microstructure and Mechanical Properties of VTaTiMoAlx Refractory High Entropy Alloys

2017 ◽  
Vol 898 ◽  
pp. 638-642 ◽  
Author(s):  
Dong Xu Qiao ◽  
Hui Jiang ◽  
Xiao Xue Chang ◽  
Yi Ping Lu ◽  
Ting Ju Li
Keyword(s):  
Mechanical Properties ◽  
Vacuum Arc ◽  
High Entropy Alloys ◽  
X Ray Diffraction ◽  
Dendrite Structure ◽  
X Ray ◽  
High Entropy ◽  
Arc Melting ◽  
Vacuum Arc Melting ◽  
Microstructure And Mechanical Properties

A series of refractory high-entropy alloys VTaTiMoAlx with x=0,0.2,0.6,1.0 were designed and produced by vacuum arc melting. The effect of added Al elements on the microstructure and mechanical properties of refractory high-entropy alloys were investigated. The X-ray diffraction results showed that all the high-entropy alloys consist of simple BCC solid solution. SEM indicated that the microstructure of VTaTiMoAlx changes from equiaxial dendritic-like structure to typical dendrite structure with the addition of Al element. The composition of different regions in the alloys are obtained by energy dispersive spectroscopy and shows that Ta, Mo elements are enriched in the dendrite areas, and Al, Ti, V are enriched in inter-dendrite areas. The yield strength and compress strain reach maximum (σ0.2=1221MPa, ε=9.91%) at x=0, and decrease with the addition of Al element at room temperature. Vickers hardness of the alloys improves as the Al addition.

scholarly journals Phase Evolution of the AlxNbTiVZr (x = 0; 0.5; 1; 1.5) High Entropy Alloys

Metals ◽  
2016 ◽  
Vol 6 (12) ◽  
pp. 298 ◽  
Author(s):  
Nikita Yurchenko ◽  
Nikita Stepanov ◽  
Mikhail Tikhonovsky ◽  
Gennady Salishchev
Keyword(s):  
Phase Evolution ◽  
High Entropy Alloys ◽  
High Entropy
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