Boron – Molybdenum – Nickel

For alloys of the Mo-Ni-B system annealed at subsolidus temperatures (and some as-cast alloys) in the Ni-MoNi-Mo 2 NiB 2 -Ni 2 B region, we study the dependence of lattice constants of the phases on their composition and analyze the obtained values of Vickers microhardness. It is established that, for most phases, the lattice constants increase with the Mo content in these phases. The strength and plasticity of the 13Mo-81Ni-6B (at.%) hypoeutectic alloy are determined within the temperature range 20-700°C. It is shown that this alloy has low plasticity but high heat resistance up to 600°C.

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Properties of Phases and Alloys of the Mo–Ni–B System in the Ni–MoNi–Mo2NiB2–Ni2B Region

Kublii

Utkin

Bondar

et al. 2021

Mater Sci

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Effect of Cr₃C₂ content on the microstructure and properties of Mo₂NiB₂-based cermets

Xie

Zhang

et al. 2015

International Journal of Materials Research

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Four series of Mo2NiB2-based cermets with Cr3C2 addition of between 0 and 7.5 wt.% in 2.5 wt.% increments were studied by means of scanning electron microscopy, energy dispersive X-ray analysis and X-ray diffractometry. The transverse rupture strength and hardness were also measured. It was found that Cr3C2 completely dissolved in Mo2NiB2-based cermets. Cr3C2 addition improved the wettability of the Ni binder phase on the Mo2NiB2 hard phase, which resulted in a decrease in the porosity and an increase in the phase uniformity. The cermets with 2.5 wt.% Cr3C2 content showed relatively fine grains and almost full density. A high Cr3C2 content resulted in the formation of M6C (M = Mo, Cr, Ni) phase. In addition, energy dispersive X-ray spectroscopy results showed that the content of Mo in the binder decreased with increasing Cr3C2 content. The cermets with 2.5 wt.% Cr3C2 addition exhibited the highest transverse rupture strength of 2210 MPa, whereas the cermets without Cr3C2 addition exhibited the highest hardness.

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Boron – Molybdenum – Nickel

Cited by 2 publications

References 30 publications

Properties of Phases and Alloys of the Mo–Ni–B System in the Ni–MoNi–Mo2NiB2–Ni2B Region

Properties of Phases and Alloys of the Mo–Ni–B System in the Ni–MoNi–Mo2NiB2–Ni2B Region

Effect of Cr₃C₂ content on the microstructure and properties of Mo₂NiB₂-based cermets

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Boron – Molybdenum – Nickel

Cited by 2 publications

References 30 publications

Properties of Phases and Alloys of the Mo–Ni–B System in the Ni–MoNi–Mo2NiB2–Ni2B Region

Properties of Phases and Alloys of the Mo–Ni–B System in the Ni–MoNi–Mo2NiB2–Ni2B Region

Effect of Cr3C2 content on the microstructure and properties of Mo2NiB2-based cermets

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Product

Resources

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Effect of Cr₃C₂ content on the microstructure and properties of Mo₂NiB₂-based cermets