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a nano b 4 C modified anti-friction and wear-resistant laser cladding layer and preparation method thereof

A laser cladding and nanotechnology, applied in coatings, metal material coating processes, etc., can solve the problems of low surface hardness, poor wear resistance, easy cracks and pores in the cladding layer, etc., to improve wear resistance. Effect

Active Publication Date: 2019-09-27
SHANDONG UNIV
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Problems solved by technology

However, the cladding layer prepared by the existing laser cladding method still has the problems of low surface hardness and poor wear resistance, and cracks and pores are prone to appear in the cladding layer, which is also a key factor restricting the improvement of the cladding layer quality.
[0005] In summary, in the prior art, the laser cladding layer of titanium alloy has low surface hardness, poor wear resistance, and cracks and pores are prone to appear in the cladding layer, and there is still a lack of effective solutions.

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  • a nano b <sub>4</sub> C modified anti-friction and wear-resistant laser cladding layer and preparation method thereof
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  • a nano b <sub>4</sub> C modified anti-friction and wear-resistant laser cladding layer and preparation method thereof

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[0060] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0061] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof. Matrix material

[0062] In this paper, TC4 (Ti-6Al-4V) titanium alloy, which is the most widely used in industry...

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Abstract

The invention discloses a nanometer B4C modified antifriction wear-resisting laser cladding layer and a preparation method thereof, and aims to solve the problems that in the prior art, a laser cladding layer of titanium alloy is low in surface hardness and poor in wear resistance, and cracks and air holes are prone to appearing in the cladding layer. The prepared cladding layer has good wear resistance, and the problem that the cracks and the air holes appear in the cladding layer can be greatly alleviated. According to the technical scheme, the preparation method comprises the following steps that the titanium alloy is taken to be a base material, ni-based self-fluxing alloy powder and nanometer B4C are taken as cladding materials, and the nanometer B4C modified antifriction wear-resisting laser cladding layer is prepared through laser cladding.

Description

technical field [0001] The invention belongs to the field of metal material surface strengthening and modification, in particular to a nano-B 4 C modified anti-friction and wear-resistant laser cladding layer and its preparation method. Background technique [0002] As a new type of structural material developed in the late 1940s, titanium alloys are widely used in aerospace, automobile industry, sports equipment, petrochemical, medical and other fields have been widely used. Taking the application in the field of automobile manufacturing as an example, titanium alloys are mainly used in the manufacture of engine components and automobile chassis parts, such as connecting rods, valves, valve springs on the engine, suspension springs on the chassis, exhaust systems, and fastening of mufflers pieces etc. Compared with steel parts, titanium alloy connecting rods can reduce weight by 15% to 20%, effectively reducing engine mass and improving fuel utilization; titanium alloy v...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C24/10
Inventor 于慧君翁飞陈传忠
Owner SHANDONG UNIV
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