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A biomedical high-entropy alloy coating and preparation method thereof

A high-entropy alloy, biomedical technology, applied in metal material coating process, coating, etc., can solve the problems of high price and limited large-scale application of refractory high-entropy alloy

Active Publication Date: 2021-10-22
贵州蓝辉新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the extremely high price of refractory high-entropy alloys seriously limits its large-scale application, so the preparation of small-sized coatings or films will be a feasible way

Method used

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  • A biomedical high-entropy alloy coating and preparation method thereof
  • A biomedical high-entropy alloy coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1. A method for preparing a biomedical high-entropy alloy coating, comprising the following steps:

[0029] (1) Take metal powder Ti, Zr, Nb, Sn and Mo respectively, mix, obtain A product; Wherein the atomic ratio of Ti, Zr, Nb, Sn and Mo is 4.66:4.67:4.67:1:1;

[0030] (2) Put product A into a stainless steel ball mill jar, dry mill it for 2 hours under the conditions of a rotating speed of 250rpm / min and a planetary ball mill, pass through a 100-mesh sieve, and dry in vacuum to obtain product B;

[0031] (3) The surface of the metal plate is polished, and the surface stain is removed with alcohol, and after drying, vacuum-dried to obtain product C;

[0032] (4) After the product B is evenly distributed on the surface of the product C, the thickness of the product B on the surface of the product C is 1mm, and the coating is prepared by cladding by laser irradiation. The specific laser processing parameters are P=2.3kw, v=5mm The / s spot size is 10mm×2mm, and ...

Embodiment 2

[0033] Example 2. A method for preparing a biomedical high-entropy alloy coating, comprising the following steps:

[0034] (1) Take metal powder Ti, Zr, Nb, Sn and Mo respectively, mix, obtain A product; Wherein the atomic ratio of Ti, Zr, Nb, Sn and Mo is 4.66:4.67:4.67:1:1;

[0035] (2) Put product A into a stainless steel ball mill jar, dry-mill for 2.5 hours under the conditions of a rotating speed of 300 rpm / min and a planetary ball mill, pass through a 100-mesh sieve, and dry in vacuum to obtain product B;

[0036] (3) The surface of the metal plate is polished, and the surface stain is removed with alcohol, and after drying, vacuum-dried to obtain product C;

[0037] (4) After product B is evenly distributed on the surface of product C, the thickness of product B on the surface of product C is 1.3mm, and the coating is prepared by laser irradiation and cladding. The specific laser processing parameters are P=2.3kw, v= The spot size of 5mm / s is 10mm×2mm, and the overla...

Embodiment 3

[0038]Example 3. A method for preparing a biomedical high-entropy alloy coating, comprising the following steps:

[0039] (1) Take metal powder Ti, Zr, Nb, Sn and Mo respectively, mix, obtain A product; Wherein the atomic ratio of Ti, Zr, Nb, Sn and Mo is 4.66:4.67:4.67:1:1;

[0040] (2) Put product A into a stainless steel ball mill jar, dry grind for 3 hours under the conditions of a rotating speed of 350rpm / min and a planetary ball mill, pass through a 100-mesh sieve, and dry in vacuum to obtain product B;

[0041] (3) The surface of the metal plate is polished, and the surface stain is removed with alcohol, and after drying, vacuum-dried to obtain product C;

[0042] (4) After product B is evenly distributed on the surface of product C, the thickness of product B on the surface of product C is 1.5mm, and the coating is prepared by laser irradiation and cladding. The specific laser processing parameters are P=2.3kw, v= The spot size of 5mm / s is 10mm×2mm, and the overlappi...

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Abstract

The invention discloses a biomedical high-entropy alloy coating and a preparation method thereof. Ti, Zr and Nb are used as solvent atoms, Sn is the solute atom, the solute atom is used as the central atom and the solvent atom forms a cluster, and Mo is used as the connecting atom between the clusters to form a cluster model, and the cluster model forms a high-entropy alloy coating. layer; the atomic ratio of Sn:Ti+Zr+Nb in the cluster is 1:14; the atomic ratio of Sn:Ti+Zr+Nb:Mo in the cluster model is 1:14:1. The invention has the ability to design the composition of the high-entropy alloy solid solution by using a chemical short program, and is applied to the repair and replacement of biological hard tissues, providing new ideas for the application of high-entropy alloys. The biomedical high-entropy alloy coating prepared by the invention is used in The corrosion resistance and biological activity in the simulated body fluid are higher than the beneficial effects of the existing biomedical TC4 titanium alloy.

Description

technical field [0001] The invention relates to an alloy coating and a preparation method thereof, in particular to a biomedical high-entropy alloy coating and a preparation method thereof. Background technique [0002] In recent years, 304SS stainless steel and titanium alloys have been widely used in the field of biological hard tissue repair and replacement due to their high hardness, high strength, excellent corrosion resistance, and good safety and reliability. However, poor biocompatibility, high elastic modulus and Ni 2+ ,Cr 3+ ,V 5+ and Al 3+ The allergic reaction triggered by the release of plasma severely limits its commercial application. Therefore, reasonable design of alloy composition to obtain alloy materials with excellent mechanical properties and bioactivity will be promising in hard tissue replacement. The refractory high-entropy alloy system composed of five or more non-toxic pre-transition high-melting elements usually exhibits a simple body-centere...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C24/10C22C16/00
CPCC22C16/00C23C24/106
Inventor 刘其斌郭亚雄王慧琳蓝宏伟
Owner 贵州蓝辉新材料有限公司
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