Particle-reinforced refractory high-entropy composite material and preparation method thereof

A particle-reinforced, composite material technology, applied in the field of particle-reinforced refractory high-entropy composite materials and their preparation, can solve problems such as limiting wide application
CN113373364AInactive Publication Date: 2021-09-10有研纳微新材料(北京)有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
有研纳微新材料(北京)有限公司
Publication Date
2021-09-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a particle-reinforced refractory high-entropy composite material and a preparation method thereof. The particle-reinforced refractory high-entropy composite material comprises a matrix phase and WC particles distributed in the matrix phase, wherein a Nb-Mo-Ta-W-Re alloy composed of Nb, Mo, Ta, W and Re elements serves as the matrix phase; and the mass of the WC particles accounts for 1-10% of the mass of the matrix phase. The Nb-Mo-Ta-W-Re alloy is adopted as the matrix phase and the WC particles are adopted as a reinforcing phase, so that the particle-reinforced refractory high-entropy composite material has high hardness, high compressive strength and stable structure performance; and meanwhile, the particle-reinforced refractory high-entropy composite material is prepared through ball-milling alloying and spark plasma hot-pressing sintering methods, the preparation is easy, and the application prospects are good.
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Description

technical field

[0001] The invention relates to the technical field of material preparation and application, in particular to a particle-reinforced refractory high-entropy composite material and a preparation method thereof. Background technique

[0002] Refractory high-entropy alloys are made of refractory metal elements (W, Mo, Ta, Nb, Hf, Zr, Ti, V, etc.) Alloys made of fractions. Compared with traditional superalloys, refractory high-entropy alloys exhibit more excellent high-temperature strength and good oxidation resistance at high temperatures, for example, NbMoTaW refractory high-entropy alloys still have 405MPa at 1600 °C, while traditional superalloys Haynes230 and Inconel When 718 is above 1200°C, its strength index is close to 0. Therefore, refractory high-entropy alloys containing elements such as W, Ta, and Mo will become the material of choice for ultra-high temperature (above 1400°C) service environments.

[0003] However, most refractory high-entropy allo...

Claims

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