Preparation method of graphene reinforced titanium-based composite material
A technology of titanium-based composite materials and composite materials, applied in the field of preparation of graphene-reinforced titanium-based composite materials, to achieve the effect of improving tensile capacity
Pending Publication Date: 2022-08-05
SHANDONG JIAOTONG UNIV
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[0005]
The purpose of the present invention is to provide a method for preparing graphene-reinforced titanium-based composite materials to solve the deficiencies in the prior art. It can prevent serious interface reactions between GNPs and titanium substrates, and can effectively improve graphene-reinforced titanium-based composite materials. material tensile strength
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[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0041] Please refer to figure 1 , 2 , 3 and Figure 7 , this embodiment proposes a method for preparing a graphene-reinforced titanium-based composite material, which includes the following steps.
[0042] S1, pre-dispersion, the GNPs slurry, the TA15 spherical powder and the B powder are mixed and pre-dispersed to obtain a pre-dispersed mixed powder in which the B powder is distributed between the GNPs and the TA15 spherical powder...
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The invention discloses a graphene reinforced titanium-based composite material preparation method which comprises the following steps: S1, pre-dispersion: mixing GNPs slurry, TA15 ball powder and B powder, and pre-dispersing to obtain pre-dispersed mixed powder in which the B powder is distributed between GNPs and TA15 ball powder; s2, SPS sintering is conducted, specifically, the mixed powder is placed in a graphite mold and sintered under the temperature condition of 800 DEG C to 1100 DEG C, part of B atoms are directionally diffused to a high-temperature Ti matrix, and a sintered composite material is obtained; and S3, sheath hot extrusion is conducted, specifically, after the sintering state composite material is heated under the temperature condition of 900 DEG C, extrusion is conducted, part of B atoms are preferentially diffused to GNPs, the B atoms which are directionally diffused and preferentially diffused hinder C atoms from being diffused to the Ti direction, and then the serious interface reaction between the GNPs and a Ti matrix is inhibited so that a GNPs sheet layer can be reserved. According to the method, the interfacial reaction of GNPs and the Ti matrix can be effectively controlled, and the tensile strength of the graphene reinforced titanium-based composite material is improved.
Description
technical field [0001] The invention relates to the technical field of graphene composite materials, in particular to a method for preparing a graphene-reinforced titanium-based composite material. Background technique [0002] With the rapid development of modern science and technology, higher requirements have been placed on the service temperature and the ability to adapt to extreme environments. Taking high-end fastener products for aerospace as an example, it is the most widely used and the most widely used basic general parts. The demand for ultra-high-strength fasteners with a tensile strength of 1200MPa-1500MPa is becoming more and more urgent, and the main factor restricting such high-end fasteners is the research and development and manufacturing of materials. [0003] Due to its excellent mechanical properties and large specific surface, graphene has been introduced into metal composite materials such as aluminum, copper and magnesium as a reinforcing phase by ma...
Claims
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Patent Timeline
Login to View More IPC IPC(8): C22C1/05B22F1/12B22F1/16B22F3/105B22F3/20B22F9/04
CPCC22C1/05B22F3/20B22F9/04B22F3/105B22F1/16B22F1/09B22F1/12B22F2003/208B22F2009/043B22F2003/1051Y02P10/25
Inventor 侯甲彬李国峰马强惠正林任轩孙庶业神伟王守宝刘刚郭俊杰
Owner SHANDONG JIAOTONG UNIV