Material with Zn-Cu-Ti alloy coating and preparation method and application thereof

Abstract

The invention relates to the technical field of alloy material surface modification, and discloses a material with a Zn-Cu-Ti alloy coating and a preparation method of the material. The preparation method comprises the steps that a titanium substrate is placed in a zinc-copper alloy melt at the temperature of 435-520 DEG C for dip plating, a Zn-Cu-Ti alloy plating layer is formed on the surface of the titanium substrate through the diffusion reaction of titanium elements in the titanium substrate, and the Zn-Cu-Ti alloy plating layer comprises a Zn-Cu-Ti free solidification layer. The material with the Zn-Cu-Ti alloy coating is prepared by adopting the preparation method. The coating bonding strength of the material prepared by the method is high, and compared with an existing titanium material, the material is more difficult to release toxic ions in a corrosive environment, and the material has better antibacterial property and better biocompatibility. The material can be applied to the field of medical implant materials.

Description

technical field [0001] The invention relates to the technical field of alloy materials, in particular to a material with a Zn-Cu-Ti alloy coating and a preparation method and application thereof. Background technique [0002] With the development of society, the elderly population and patients with orthopedic diseases have an increasing demand for implantable biomedical materials. Over the past few decades, researchers have conducted extensive research on biocompatible orthopedic materials that can be implanted in the human body. Medical titanium alloys are widely used in medical implants because of their excellent comprehensive properties. However, during the use of medical titanium and titanium alloys, there are problems such as physiological corrosion releasing harmful ions and easy to cause bacterial infection. Surface modification is an effective way to improve the biocompatibility and antibacterial properties of titanium and titanium alloy materials. Although there ...

AI Technical Summary

Problems solved by technology

Although there are many surface modification technologies for titanium and titanium alloys, there is no one method that can fully meet the clinical requirements; in addition, some surface modification technologies still have high costs, long production cycles, or deterioration of the mechanical properties of titanium and titanium alloys. shortcoming

For example, the high operating temperature of the chemical vapor deposition method is likely to cause deformation and structural changes of the substrate material, thereby reducing the mechanical properties of the substrate material and weakening the bonding force between the substrate material and the coating; although the sputtering coating temperature is low, the deformation of the workpiece is small , but its wrapping properties are poor, and the bonding strength between the film layer and the substrate is poor; the sol-gel method has disadvantages such as long production cycle, high cost, large environmental pollution, and product variability; the equipment of the laser cladding method is expensive, and The uniformity of the coating is poor; the plasma spray coating is mechanically combined with the substrate, the strength is low, and the coating uniformity of the substrate with rough or complex properties is poor, etc.

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