Effect of Mo on interdifussion behaviors and interfacial characteristics in multicomponent diffusion couple of FeCoCrNi high entropy alloys and diamond

Peng, Yujia; Wang, Haijiang; Li, Qin; Wang, Li; Zhang, Wei; Zhang, Lijun; Guo, Song; Liu, Yong; Ma, Qingyuan

doi:10.1016/j.matdes.2022.110522

Cited by 14 publications

(3 citation statements)

References 35 publications

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“…The 289.7 eV result indicated a COOH bond from urea,14 and the 290.4 eV indicated a pi–pi bond of carbon. 16 (Fig. 2A) For N1s, 406.3 eV indicated an N–O bond, which could be the three N–O bonds in urea; 20 405.9 eV represented oxidized N, resulting in the interaction between Fe ion 22,29 (Fig.…”

Section: Resultsmentioning

confidence: 99%

Organic compound-based nanozymes for agricultural herbicide detection

Lee,

Kamruzzaman

2023

Nanoscale

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Section: Resultsmentioning

confidence: 99%

Organic compound-based nanozymes for agricultural herbicide detection

Lee,

Kamruzzaman

2023

Nanoscale

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“…The diffusion of H atoms in Pd/TaTiNbZr/Ta is a similar process. The difference is that when H atoms diffuse along the Pd grain boundary towards the barrier layer, due to the lattice distortion of the amorphous TaTiNbZr HEA, the diffusion distance increases, resulting in a longer diffusion time for H 2 to reach a steady state in Pd/TaTiNbZr/Ta [18,31,33,34]. The permeable flux of the three film samples is shown in Figure 5.…”

Section: Hydrogen Permeation Through Pd/tatinbzr/ta and Pd/tamentioning

confidence: 99%

Improved High-Temperature Stability and Hydrogen Penetration through a Pd/Ta Composite Membrane with a TaTiNbZr Intermediate Layer

Sun,

Liu,

2024

Coatings

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In the hydrogen separation membrane, a dense TaTiNbZr amorphous layer was prepared between Pd and Ta to form a Pd/TaTiNbZr/Ta membrane system to prevent the reaction between Pd and Ta at high temperatures. The structural and chemical stability of the Pd/TaTiNbZr/Ta film system at high temperatures were investigated by annealing at 600 °C for 24 h. The high-temperature hydrogen permeation properties of the Pd/TaTiNbZr/Ta film systems were investigated by hydrogen permeation experiments at 600 °C after heat treatment for 6 h. The TaTiNbZr layer was significantly hydrogen-permeable. With the increase in the thickness of the barrier layer, the hydrogen permeability of Pd/TaTiNbZr/Ta decreased, but its hydrogen permeation flux was smaller than that of the highest value of Pd/Ta when it reached the steady state. The presence of the TaTiNbZr layer effectively blocks the interdiffusion between Pd and Ta to form TaPd3, improving the sustained working ability of the Pd/TaTiNbZr/Ta membrane system. The results show that TaTiNbZr is a candidate material for the intermediate layer to improve the high-temperature stability of metal-composite hydrogen separation membranes.

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“…These features make HEAs stand out among the conventional alloys and also make them highly in demand in the production of metal–diamond composites for abrasive or thermoconductive needs. In recent years, a number of works have been published that reveal the potential of HEAs as a binder for diamond tools, which is associated with a combination of their high strength, ductility and, as a result, high diamond retention strength and better tool performance [ 14 , 15 , 16 , 17 , 18 ]. Among other positive features, these works show the possibility of intermediate carbide layer formation, performing a protective function.…”

Section: Introductionmentioning

confidence: 99%

Manufacturing of Metal–Diamond Composites with High-Strength CoCrCuxFeNi High-Entropy Alloy Used as a Binder

et al. 2023

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This paper focuses on the study of the structure and mechanical properties of CoCrCuxFeNi high-entropy alloys and their adhesion to single diamond crystals. CoCrCuxFeNi alloys were manufactured by the powder metallurgy route, specifically via mechanical alloying of elemental powders, followed by hot pressing. The addition of copper led to the formation of a dual-phase FCC + FCC2 structure. The CoCrCu0.5FeNi alloy exhibited the highest ultimate tensile strength (1080 MPa). Reductions in the ductility of the CoCrCuxFeNi HEAs and the tendency for brittle fracture behavior were observed at high copper concentrations. The equiatomic alloys CoCrFeNi and CoCrCuFeNi demonstrated high adhesion strength to single diamond crystals. The diamond surface at the fracture of the composites having the CoCrFeNi matrix had chromium-rich metal matrix regions, thus indicating that chromium carbide, responsible for adhesion, was formed at the composite–diamond interface. Copper-rich areas were detected on the diamond surface within the composites having the CoCrCuFeNi matrix due to the predominant precipitation of the FCC2 phase at the interfaces or the crack propagation along the FCC/FCC2 interface, resulting in the exposure of the Cu-rich FCC2 phase on the surface.

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Effect of Mo on interdifussion behaviors and interfacial characteristics in multicomponent diffusion couple of FeCoCrNi high entropy alloys and diamond

Cited by 14 publications

References 35 publications

Organic compound-based nanozymes for agricultural herbicide detection

Organic compound-based nanozymes for agricultural herbicide detection

Improved High-Temperature Stability and Hydrogen Penetration through a Pd/Ta Composite Membrane with a TaTiNbZr Intermediate Layer

Manufacturing of Metal–Diamond Composites with High-Strength CoCrCuxFeNi High-Entropy Alloy Used as a Binder

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