阅读说明：本技术 一种用于钛合金表面具有稳定抗磨减摩功能的纳米复合材料 (It is a kind of that there is the nanocomposite for stablizing antiwear and antifriction function for titanium alloy surface ) 是由 周银 王树奇 赵振江 许胜� 王健 于 2019-08-26 设计创作，主要内容包括：本发明提供了一种用于钛合金表面具有稳定抗磨减摩功能的纳米复合材料,所述的纳米复合材料是以作为抗磨组分的纳米氧化物颗粒和作为减摩组分的多层石墨烯为原料,采用液相剥离法制备的氧化物颗粒/多层石墨烯纳米复合材料,纳米氧化物颗粒均匀分散于石墨烯片层表面和层间。本发明的纳米复合材料具有如下技术效果：1)用于钛合金表面时,能够同时抗磨和减摩,可以彻底改善钛合金在严酷工况条件(如高载荷)下摩擦磨损性能。2)与中国专利CN201611018013.7相比,具有在高载下仍能有效发挥抗磨减摩功能,即摩擦层稳定性强的技术进步。(The present invention provides a kind of nanocomposites for having for titanium alloy surface and stablizing antiwear and antifriction function, the nanocomposite be using as abrasion resistant component nano-oxide particles and as antifriction component multi-layer graphene as raw material, oxide particle/multi-layer graphene the nanocomposite prepared using liquid phase stripping method, nano-oxide particles are dispersed in graphene film layer surface and interlayer.When nanocomposite of the invention is had the following technical effect that for titanium alloy surface 1), can wear-resistant and antifriction simultaneously, can thoroughly improve titanium alloy friction and wear behavior under severe service condition (such as top load).2) compared with Chinese patent CN201611018013.7, have the function of to remain to effectively play antiwear and antifriction in the case where height carries, i.e. the strong technological progress of frictional layer stability.)

1. a kind of have the nanocomposite for stablizing antiwear and antifriction function for titanium alloy surface, which is characterized in that described Nanocomposite be using as abrasion resistant component nano-oxide particles and as antifriction component multi-layer graphene as raw material, Oxide particle/multi-layer graphene the nanocomposite prepared using liquid phase stripping method, nano-oxide particles are evenly dispersed In graphene film layer surface and interlayer；

The nano-oxide particles be selected from one of di-iron trioxide, titanium monoxide, titanium dioxide, aluminum oxide or It is several, and di-iron trioxide must be contained；

It is 80-90% w/w that the nano-oxide particles, which account for composite material total weight percent,；

It is 10-20% w/w that the multi-layer graphene, which accounts for composite material total weight percent,；

When also other oxide particles in addition to di-iron trioxide in nano-oxide particles, each abrasion resistant component can be by any matter Amount is than meter；

The partial size of the nano-oxide particles is 30-300 nm, and the shape of ferric oxide particle selects spherical or spindle Shape.

2. nanocomposite according to claim 1, which is characterized in that in the nanocomposite, nano oxygen Compound particle is di-iron trioxide, and accounting for composite material total weight percent is 80% w/w, and multi-layer graphene accounts for composite material gross weight Amount percentage is 20% w/w, and di-iron trioxide nano particle diameter is 30 nm, and shape is spherical.

Technical field

The present invention relates to a kind of nanocomposites for having for titanium alloy surface and stablizing antiwear and antifriction function, belong to material Expect technical field.

Background technique

The application of titanium alloy is started from the 1950s, quickly grown due to its a series of excellent properties, extensive Applied to every field such as aerospace, navigation, automobile, the energy, chemical industry, bio-medicals.However, the wearability of titanium alloy difference and Friction, lubrication but limits it in the engineer application being related in fretting wear field.

Surface treatment has always been considered as being to improve the effective way of titanium alloy friction and wear behavior, but its high cost, multiple Often stress or thermal stress lead to crackle and peeling and fail the severe services such as general labourer's skill and high load, high speed, always It is denounced.Based on this, the research of related titanium alloy surface processing is gradually converted into the research to its own tribological property.Titanium The frictional layer formed in alloy wear process has metallicity, the frictional layer oxide-free caused by sliding condition or contains only micro- When measuring oxide, do not have protective effect, this is the basic reason for the wearability that titanium alloy has difference.

From the angle of frictional layer, the change of sliding condition may result in frictional layer and change to influence polishing machine.Closely Nian Lai, some researchers both domestic and external have new when further being explored to titanium alloy dry Sliding Friction Wear performance Cognition, under the specific conditions such as high temperature and high speed, titanium alloy surface forms oxidiferous frictional layer, belongs to ceramic property, has Protective effect, therefore the wearability of titanium alloy is improved.

However, being that main frictional layer is also deposited while playing effective protection effect by the ceramics that sliding condition variation causes In some qualifications or negative effect, for example, must be formed under given conditions, and can hardly be formed under normal conditions； The formation of frictional layer is built upon on consumption friction parabasal body material foundation, this will cause the abrasion of material；It is prior It is that the ceramic property of frictional layer effectively reduces abrasion, but is not always to reduce friction simultaneously.

A kind of antiwear and antifriction material of Chinese patent CN201611018013.7, especially a kind of titanium alloy antiwear and antifriction is with containing Oxide self-lubricating nano mixing material.Material includes antiwear additive 33-83%, anti-friction agent 17-67%.Wherein antiwear additive is three oxygen Change two iron nano-particles, anti-friction agent is multi-layer graphene.Titanium conjunction is directly appended to after two kinds of nano materials are mixed evenly Golden member slide interface can form oxycompound self-lubricating nano material.It has the following deficiencies: three free oxidations Two iron nano-particles are easily reunited, and the specific surface area and surface energy of di-iron trioxide nano particle are reduced, to limit it It is sintered.When adding same amount of nano material, induced in patent CN201611018013.7 three in the frictional layer of formation It aoxidizes two iron to significantly reduce, i.e., abrasion resistant component content reduces.

Composite material is made in di-iron trioxide and multi-layer graphene by the present invention, and di-iron trioxide will be dispersed in graphite Alkene sheet surfaces and interlayer, sintering rate are remarkably reinforced, and frictional layer has stable antiwear and antifriction function because abrasion resistant component content is high Energy.

Summary of the invention

For overcome the deficiencies in the prior art, have the present invention provides one kind for titanium alloy surface and stablize antiwear and antifriction The nanocomposite of function.

The present invention has made following improvement for the immediate prior art:

(1) composite material is made in di-iron trioxide and multi-layer graphene, frictional layer has stabilization because abrasion resistant component content is high Antiwear and antifriction function；

(2) choose variety classes, partial size, shape oxide particle prepare composite material, investigate the stability of frictional layer, that is, rub Wipe the load that layer can be born.

Technical scheme is as follows:

A kind of to have the nanocomposite for stablizing antiwear and antifriction function for titanium alloy surface, the nanocomposite is Using as abrasion resistant component nano-oxide particles and as antifriction component multi-layer graphene as raw material, using liquid phase stripping method The oxide particle of preparation/multi-layer graphene nanocomposite, nano-oxide particles are dispersed in graphene sheet layer table Face and interlayer；

The nano-oxide particles be selected from one of di-iron trioxide, titanium monoxide, titanium dioxide, aluminum oxide or It is several, and di-iron trioxide must be contained；

It is 80-90% w/w that the nano-oxide particles, which account for composite material total weight percent,；

It is 10-20% w/w that the multi-layer graphene, which accounts for composite material total weight percent,；

When also other oxide particles in addition to di-iron trioxide in nano-oxide particles, each abrasion resistant component can be by any matter Amount is than meter；

The partial size of the nano-oxide particles is 30-300 nm, and the shape of ferric oxide particle selects spherical or spindle Shape.

Preferably,

In the nanocomposite, nano-oxide particles are di-iron trioxide, account for composite material total weight percent and are 80% w/w, it is 20% w/w that multi-layer graphene, which accounts for composite material total weight percent, and di-iron trioxide nano particle diameter is 30 Nm, shape are spherical.

Existing conventional method is that chemical reaction occurs by surface treatment or titanium alloy surface element to form wear-resistant substance, this There are many deficiencies for class method, such as: at high cost；Environmental pollution is serious；It must be formed under given conditions, and it is several under normal conditions It cannot be formed；The formation of frictional layer is built upon on consumption friction parabasal body material foundation, this will cause the mill of material Consumption；More importantly the ceramic property of frictional layer effectively reduces abrasion, but is not always to reduce friction simultaneously.And it is of the invention Preparation method and nconventional method, are that nanometer is made by liquid phase stripping method in di-iron trioxide nano particle and multi-layer graphene Composite material, and it is added to sliding interface, induced synthesis functional gradient frictional layer can avoid above-mentioned deficiency simultaneously.

Before sliding test starts, composite material is poured directly on sliding interface, and is shaken up, to prevent nano material Reunite or splash out, appropriate reconstruction can be carried out to disk sample, i.e., pastes one piece of cylindrical foam in disk center, while gluing around disk Attached one layer of hard rubber band.By sliding friction, composite material is promoted to be adsorbed to titanium alloy surface, passes through aggregation, sintering, compacting etc. A series of processes form frictional layer, and then play antiwear and antifriction effect.

Nanocomposite of the invention is added on sliding interface, can artificial induction's titanium alloy surface form functional ladder Frictional layer, as double-layer structure are spent, being close to matrix (lower layer) take oxide as leading frictional layer, close to flour milling (upper layer) Being take multi-layer graphene as leading frictional layer.Lower layer's frictional layer plays carrying, and supports frictional layer thereon, upper layer Frictional layer plays lubricating action, and lower layer's frictional layer is protected not to be worn.Two layers of frictional layer mutually cooperates with, and reaches while wear-resistant and subtract The effect rubbed, titanium alloy friction and wear behavior significantly improve.

When addition oxide-rich nanocomposite, i.e., in composite material oxide (especially di-iron trioxide) accounting compared with Gao Shi, carrying constituent content is high in gradient frictional layer especially lower layer's frictional layer, and titanium alloy can keep extremely low under more top load Wear rate and coefficient of friction.Similarly, when nano-oxide particles are spherical, small size, because surface area is big, surface can be high, It is easy to be sintered, can also promotes titanium alloy that there is superior friction and wear behavior.Produce unexpected technical effect.

Nanocomposite of the invention has the following technical effect that

1) be used for titanium alloy surface when, can simultaneously wear-resistant and antifriction, can thoroughly improve titanium alloy severe service condition (such as Top load) under friction and wear behavior.

2) compared with Chinese patent CN201611018013.7, have and remain to effectively play antiwear and antifriction function in the case where height carries Can, i.e. the strong technological progress of frictional layer stability.

Detailed description of the invention

Fig. 1 is that nanometer that is no added, only adding multi-layer graphene, only add di-iron trioxide and add embodiment 1-4 is multiple When condensation material TC11 alloy with load change wear rate；

Fig. 2 is no added, only addition multi-layer graphene, addition di-iron trioxide and addition embodiment 1-4 nano combined material The average friction coefficient of system is slided when material；

Fig. 3 is the pattern of TC11 alloy surface gradient frictional layer when adding 3 nanocomposite of embodiment.

Specific embodiment

The present invention is described in further detail combined with specific embodiments below.