High-entropy TiCuAlCrMoNi alloy and preparation method thereof

A technology of high-entropy alloys and alloys, applied in the field of high-entropy alloys, can solve problems such as lack of antifouling function, low strength of titanium alloys, marine biofouling, etc., achieve excellent seawater corrosion resistance, make up for poor comprehensive performance, and improve The effect of intensity

Inactive Publication Date: 2016-12-21
725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a TiCuAlCrMoNi high-entropy alloy and a preparation method thereof in order to overcome the disadvantages that the existing high-entropy alloys do not have the antifouling function, and the strength of the marine titanium alloy is low and marine biofouling is prone to occur.

Method used

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Examples

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Effect test

Embodiment 1

[0026] A kind of TiCuAlCrMoNi high entropy alloy, the component of this high entropy alloy is Ti a Cu b Al c Cr d Mo e Ni f , where the molar ratio of any two elements is 1:1.

[0027] A preparation method of TiCuAlCrMoNi high-entropy alloy, comprising the following steps:

[0028]1. Ultrasonic treatment: Put titanium sponge, Cu material, Al material, Cr material and Ni material in the container, and then add Mo, Al or Ti in the form of Al-Mo / Ti-Mo master alloy, and then add After all the materials are submerged in acetone, ultrasonically clean for 15-20 minutes to remove the oil stains and impurities attached to the surface; then the sponge titanium, Cu material, Al material, Cr material, Ni material and Al-Mo / Ti -Mo material is placed in a container, and absolute ethanol is added until all materials are submerged, ultrasonically cleaned for 15-20 minutes, and dried in an oven to obtain sponge titanium, Cu material, Al material, Cr material, Ni material and Al-Mo / Ti-Mo...

Embodiment 2

[0035] A kind of TiCuAlCrMoNi high entropy alloy, the component of this high entropy alloy is Ti a Cu b al c Cr d Mo e Ni f , wherein the mole percentage is 1 mol for a, 0.5 mol for b, 1 mol for c, 0.2 mol for d, 0.3 mol for e, and 0.5 mol for f.

[0036] A preparation method of TiCuAlCrMoNi high-entropy alloy, comprising the following steps:

[0037] 1. Ultrasonic treatment: put titanium sponge, Cu material, Al material, Cr material and Ni material in the container, and then add Mo and Ti in the container in the form of Ti-Mo master alloy, then add acetone until all materials are completely After being submerged, ultrasonically clean for 15-18 minutes to remove the oil and impurities attached to the surface; then put the titanium sponge, Cu material, Al material, Cr material, Ti-Mo material and Ni material after the impurity removal into the container, add Water and ethanol until all materials are submerged, ultrasonically cleaned for 15-18min, and dried in an oven to o...

Embodiment 3

[0044] A kind of TiCuAlCrMoNi high entropy alloy, the component of this high entropy alloy is Ti a Cu b al c Cr d Mo e Ni f , wherein, the mole percentage is 0.9mol for a, 0.6mol for b, 0.2mol for c, 0.5mol for d, 0mol for e, and 0.05mol for f.

[0045] A preparation method of TiCuAlCrNi high-entropy alloy, comprising the following steps:

[0046] Step 1. Put the titanium sponge, Cu material, Al material, Cr material and Ni material in the container, add acetone until all materials are submerged, and then ultrasonically clean for 15-20 minutes to remove oil and impurities attached to the surface; then Put the titanium sponge, Cu material, Al material, Cr material, and Ni material after removing impurities into containers respectively, add absolute ethanol until all materials are submerged, clean them ultrasonically for 15-20 minutes, and then dry them in an oven , to obtain titanium sponge, Cu material, Al material, Cr material and Ni material after ultrasonic treatment;...

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Abstract

The invention discloses high-entropy TiCuAlCrMoNi alloy and a preparation method thereof. The high-entropy alloy is composed of TiaCubAlcCrdMoeNif, wherein a, b, c, d, e and f represent molar ratios of corresponding elements, a is greater than or equal to 0.3 but smaller than or equal to 1.5, b is greater than or equal to 0.2 but smaller than or equal to 1.2, c is greater than or equal to 0.2 but smaller than or equal to 1.5, d is greater than or equal to 0.05 but smaller than or equal to 1.2, e is greater than or equal to 0 but smaller than or equal to 1.2 and f is greater than or equal to 0.05 but smaller than or equal to 1.2. The high-entropy alloy with the microhardness not lower than 550 HV, with the seawater corrosion resistance and with the antifouling function can be prepared through the non-consumable vacuum arc smelting technology or the electromagnetic suspension smelting technology, the shortcomings of traditional high-entropy alloy can be overcome, and the application requirements of ship materials in future can be met.

Description

technical field [0001] The invention relates to the technical field of high-entropy alloys, in particular to a TiCuAlCrMoNi high-entropy alloy and a preparation method thereof. Background technique [0002] The seawater pipeline system is distributed in various parts of the ship, mainly providing cooling seawater and fire-fighting water to the whole ship, and providing ballast water required by the ship's ballast water system to ensure the normal operation of the ship's key equipment. , The maintenance is complicated, and most of them are in the harsh environment of humidity, high temperature and high salinity, and the service conditions are harsh. Titanium alloy has the advantages of low density, high specific strength, non-magnetic, seawater corrosion resistance, etc., and has broad application prospects in the field of ships. The yield strength of existing marine titanium and titanium alloys is generally below 1150MPa, which cannot meet the application requirements of hi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C30/02C22C1/03
CPCC22C1/03C22C30/02
Inventor 李兆峰李士凯李振亚晏阳阳
Owner 725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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