Method for improving zirconium-based or titanium-based amorphous alloy surface hardness through laser irradiation in nitrogen

Abstract

The invention relates to a method for improving zirconium-based or titanium-based amorphous alloy surface hardness through laser irradiation in nitrogen, and belongs to the technical field of amorphous alloy surface modification. Chemical affinity of the zirconium or titanium element and the nitrogen element under the high temperature or other conditions is used, nanosecond laser irradiation is carried out on the zirconium-based or titanium-based amorphous alloy surface in the nitrogen atmosphere, a nitriding phase (zirconium nitride or titanium nitride) is led into an amorphous parent phase of the surface of a zirconium-based or titanium-based amorphous alloy, and the surface hardness of the zirconium-based or titanium-based amorphous alloy is improved. The method effectively solves the problem that when the amorphous alloy surface is treated through an existing laser irradiation method, the surface hardness of the amorphous alloy is obviously reduced. Laser irradiation parameters arechanged, so that regulation and control of the content of the nitriding phase on the amorphous alloy surface are conveniently achieved, and regulation and control of the zirconium-based or titanium-based amorphous alloy surface hardness are achieved. The method is simple in implementation process, high in efficiency and high in practicability, the method can be used for regulating and controllingthe zirconium-based or titanium-based amorphous alloy surface hardness, and function application of the zirconium-based or titanium-based amorphous alloy is strengthened.

Description

technical field [0001] The invention relates to the technical field of surface modification of amorphous alloys, in particular to a method for improving the surface hardness of zirconium-based or titanium-based amorphous alloys by laser irradiation in nitrogen. It can be applied to control the surface hardness of zirconium-based or titanium-based amorphous alloys and enhance their functional applications. Background technique [0002] Due to its long-range disordered structure, amorphous alloys exhibit better mechanical, physical and chemical properties than conventional crystalline materials, such as high hardness, strength, elasticity, low elastic modulus, and excellent soft magnetic properties. Good wear resistance and corrosion resistance have attracted continuous attention from the scientific and industrial circles. Although amorphous alloys are very promising structural and functional materials, the problem of catastrophic fracture of most amorphous alloys due to the ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for improving the surface hardness of zirconium-based or titanium-based amorphous alloys by laser irradiation in nitrogen gas, so as to solve the problem that the surface hardness of amorphous alloys is significantly reduced by the existing laser irradiation method

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