High-temperature-resistant high-entropy alloy material and preparation method thereof

A high-entropy alloy and high-temperature-resistant technology, which is applied in the field of alloy materials to achieve good toughness and plasticity
CN105112759AActive Publication Date: 2015-12-02TAIYUAN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
TAIYUAN UNIV OF TECH
Publication Date
2015-12-02

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Abstract

The invention discloses a high-temperature-resistant high-entropy alloy material and a preparation method thereof, and belongs to the technical field of the alloy materials. The preparation method comprises the steps that four of Ti, V, Nb, Mo, Ta and W are adopted as raw materials; the raw materials are smelted into mother alloy button ingots by a high-vacuum nonconsumable arc melting furnace under high-purity argon shielding; the four button ingots are mounted to be samples in the sizes of phi 20mmx10mm by a metallurgical phase mounting press; the surfaces of the samples are smoothed by 100#, 240#, 400#, 600#, 800#, 1000#, 1200# and 1500# metallurgical phase abrasive paper; then the samples are subjected to mechanical polishing; a crystal structure is determined by an X-ray diffractometer; a scanning electron microscope is used to observe the morphology of a microstructure; a room temperature quasi-static compression performance test is carried out; and the obtained four alloys have higher yield strength and work hardening capacity.
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Description

technical field

[0001] The invention relates to a high-temperature-resistant high-entropy alloy material and a preparation method thereof, belonging to the technical field of alloy materials. Background technique

[0002] High-entropy alloys are considered to be one of the three major breakthroughs in alloying theory in recent decades (the other two are bulk metallic glasses and rubbery metals), representing a new world of alloys that can be synthesized, analyzed, and controlled. High-entropy alloys have a combination of high hardness, high work hardening, high temperature softening resistance, high temperature oxidation resistance, corrosion resistance, and high electrical resistivity, and their performance is no less than that of traditional alloys. It can be seen that the potential application prospects of high-entropy alloys are very broad. High-entropy alloys can generally be defined as the alloying of various constituent elements in an equiatomic ratio or close to an ...

Claims

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