High entropy alloys: A focused review of mechanical properties and deformation mechanisms

An Introduction to Magnetohydrodynamics

Progress in additive manufacturing on new materials: A review

Mechanical behavior of high-entropy alloys

Selective laser melting of an equiatomic CoCrFeMnNi high-entropy alloy: Processability, non-equilibrium microstructure and mechanical property

Composition design of high entropy alloys using the valence electron concentration to balance strength and ductility

In order to improve the plasticity of AlCoCrFeNi high entropy alloys (HEA) without obviously decreasing the strength, Co has been added to this alloy as Co is a FCC phase stabilizer. In this study, the alloying effects of Co addition on the phase types, microstructure and mechanical properties of (AlCoCrFeNi)100-xCox are investigated systematically. The result shows that Co element has the capacity to induce phase transformation from BCC phase to FCC phase in the (AlCoCrFeNi)100-xCox alloy system, and the volume fraction of FCC phase increases from 0% to 77% as the Co content increases. Compressive testing shows that Co addition has a positive effect in improving the plasticity of AlCoCrFeNi HEA, and the fracture strain increases gradually from 27% to 40%, while the ultimate strength only reduces from 2743 MPa to 2680 MPa as the Co content changes from 0 to 16 at%. The maximum ultimate compressive strength reaches 2974 MPa, while the fracture strain reaches 30%. The increased volume fraction of FCC phase is the main factor in the plasticity increases, and the valence electron concentration (VEC) increase induced by Co addition is the main factor in FCC phase volume fraction increases in this alloy.

Effect of Co content on phase formation and mechanical properties of (AlCoCrFeNi) 100-x Co x high-entropy alloys

Microstructure evolution and mechanical properties of Nb–Si based alloy processed by electromagnetic cold crucible directional solidification

Microstructure evolution, Cu segregation and tensile properties of CoCrFeNiCu high entropy alloy during directional solidification

Synergistic effect of B and Y on the isothermal oxidation behavior of TiAl-Nb-Cr-V alloy

Hongsheng Ding

Papers

Composition design of high entropy alloys using the valence electron concentration to balance strength and ductility

Effect of Co content on phase formation and mechanical properties of (AlCoCrFeNi) 100-x Co x high-entropy alloys

Microstructure evolution and mechanical properties of Nb–Si based alloy processed by electromagnetic cold crucible directional solidification

Microstructure evolution, Cu segregation and tensile properties of CoCrFeNiCu high entropy alloy during directional solidification

Synergistic effect of B and Y on the isothermal oxidation behavior of TiAl-Nb-Cr-V alloy