A kind of ti material with good bonding anti-oxidation coating and preparation method thereof

An anti-oxidation coating and bonding technology, which is applied in the field of metal surface coating and metal surface modification, can solve the problems of complex preparation process, complex coating composition, and long time consumption, and achieve good biocompatibility and excellent anti-corrosion. Corrosiveness, effect of improving oxidation resistance

Active Publication Date: 2022-03-04
KUNMING INST OF PRECIOUS METALS
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Its shortcoming is that this method mainly only considers the Ti3Al+γ-TiAl dual-phase structure coating to obtain surface oxidation resistance to improve the oxidation resistance of Ti alloy, but the obtained dual-phase structure is brittle intermetallic Compound, easy to crack during service and cause early failure of coating
The disadvantage of this method is that, firstly, the composition of the coating is complicated, and three kinds of powders of Al, Ti, and TiBCN need to be mixed and prepared through multiple high-temperature treatments. At the same time, the invention does not specify the phase composition of the final product; secondly, the preparation process Complicated, requiring two laser cladding treatments, vacuum heat treatment and HCPEB treatment, high cost and time-consuming

Method used

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  • A kind of ti material with good bonding anti-oxidation coating and preparation method thereof
  • A kind of ti material with good bonding anti-oxidation coating and preparation method thereof
  • A kind of ti material with good bonding anti-oxidation coating and preparation method thereof

Examples

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Effect test

experiment example 1

[0035] (1) Mechanically polish the commercially pure Ti (TA2) and ultrasonically clean it with acetone for 3 minutes, then recrystallize and anneal the commercially pure Ti under vacuum conditions to obtain commercially pure Ti with a uniform microstructure. The annealing temperature is 700℃, treatment time is 1h, vacuum degree is 1x10 -3 Pa;

[0036] (2) The industrially pure Ti treated in step (1) was ultrasonically cleaned with 3wt% dilute hydrochloric acid for 3 minutes and dried;

[0037] (3) Fix the dried Ti material substrate on the sample stage of the dual magnetron sputtering source system. Controlled sputtering source system, Ti target adopts DC sputtering source system, Ru target adopts RF sputtering source system; vacuumize to 1x10 -3 Pa, then start to heat the industrial pure Ti substrate, after heating to 100°C, introduce Ar gas, adjust the air pressure to 0.5Pa, separate the substrate with a baffle, and adjust the power of the DC sputtering source used for the...

Embodiment 1

[0050] The substrate is industrially pure Ti (TA0), and the Ti material with a good bonding anti-oxidation coating Ti-Ru alloy coating is prepared. First, the industrial pure Ti is mechanically polished, and ultrasonically cleaned with anhydrous alcohol for 3 minutes, and then Under the condition of vacuum degree of 1×10-3Pa, recrystallization annealing was carried out on commercially pure Ti, the annealing temperature was controlled at 700°C, and the treatment was performed for 4 hours to obtain commercially pure Ti substrate with uniform microstructure; then, commercially pure Ti was treated with concentration Ultrasonic cleaning with 3wt% dilute sulfuric acid for 10 minutes and drying; then the dried industrial pure Ti substrate was fixed on the sample stage of the dual magnetron sputtering source system, and the center of the surface of the industrial pure Ti substrate and the Ti target (purity 99.99wt%) and Ru target (purity 99.99wt%) have the same surface center distance ...

Embodiment 2

[0052] The substrate is Ti6Al4V alloy, and the Ti6Al4V alloy coated with anti-oxidation coating Ti-Ru alloy with good adhesion is prepared. Firstly, the Ti6Al4V alloy is mechanically polished, and ultrasonically cleaned with acetone for 10 minutes, and then vacuumed at a degree of 1×10 -4 Under the condition of Pa, the Ti6Al4V alloy was recrystallized and annealed, the annealing temperature was controlled at 900 ° C, and the treatment was performed for 1 h to obtain a Ti6Al4V alloy with a uniform microstructure; then, the Ti6Al4V alloy was ultrasonically cleaned with 10 wt% dilute nitric acid for 3 min and dried; Then the dried Ti6Al4V alloy substrate was fixed on the sample stage of the dual magnetron sputtering source system, and the surface center of the Ti6Al4V alloy substrate was connected with the Ti target (purity 99.995wt%) and Ru target (purity 99.995wt%) The center distance of the surface is equal, the distance is 60mm; the dual magnetron sputtering source system is a...

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Abstract

The invention discloses a Ti material with a good bonding anti-oxidation coating, which is characterized in that the Ti material substrate is covered with a layer of anti-oxidation Ti-Ru alloy coating with good bonding with the substrate. The content of Ru in the Ti-Ru alloy coating is 5-40wt%, and the thickness of the coating is 1-20 μm; the preparation method includes substrate pretreatment, substrate cleaning, target cleaning, coating sputtering forming process, Obtain the required Ti material with Ti-Ru alloy coating. The Ti material with the Ti-Ru alloy coating of the present invention has good metallurgical bonding and less interfacial stress because the coating resists oxidation and does not generate oxides during the heating process, which enhances the overall oxidation resistance of the Ti material performance. The method of the invention can be widely used in the preparation of functional coatings on the surface of metal materials to obtain metal materials with excellent surface performance.

Description

technical field [0001] The invention belongs to the technical field of metal surface modification, and further belongs to the technical field of metal surface coating, and in particular relates to a Ti material with good bonding and anti-oxidation coating and a preparation method thereof. Background technique [0002] Due to its low density, high specific strength, excellent corrosion resistance, high temperature resistance, non-magnetic properties, and good biocompatibility, Ti materials are widely used in aerospace, marine engineering, petrochemical, medical, sports equipment and other fields. increasingly widespread. At room temperature, the surface of Ti material can form a dense oxide layer with a thickness of nanometer scale at room temperature, which effectively prevents its further oxidation. However, as the temperature increases, the oxide layer on the surface of the Ti material continues to thicken. Due to the difference in thermal expansion coefficient between th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C14/02C23C14/34C23C14/16C22C14/00
CPCC23C14/021C23C14/02C23C14/3464C23C14/3407C23C14/165C22C14/00
Inventor 闻明余登德郭俊梅谭志龙王传军周利民管伟明许彦亭沈月胡昌义
Owner KUNMING INST OF PRECIOUS METALS
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