CN110257680A - A kind of Fe based high-temp-resistant composite material and preparation method containing polynary lubrication phase - Google Patents
A kind of Fe based high-temp-resistant composite material and preparation method containing polynary lubrication phase Download PDFInfo
- Publication number
- CN110257680A CN110257680A CN201910724405.2A CN201910724405A CN110257680A CN 110257680 A CN110257680 A CN 110257680A CN 201910724405 A CN201910724405 A CN 201910724405A CN 110257680 A CN110257680 A CN 110257680A
- Authority
- CN
- China
- Prior art keywords
- powder
- alc
- temp
- tic
- composite material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
- C22C1/051—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
- C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
- C22C29/067—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds comprising a particular metallic binder
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
- C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
- C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
- C22C33/0292—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5% with more than 5% preformed carbides, nitrides or borides
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses a kind of Fe based high-temp-resistant composite material containing polynary lubrication phase, the percents by volume of chemical component are as follows: TiCx5-20vol.% (0.4≤x≤1.1), Ti3AlC210-40vol.%, Cu 1-7vol.%, Ni 0.1-3vol.%, Cr 0.1-3vol.%, remaining is Fe powder；The preparation method of above-mentioned composite material is mainly by TiCxPowder, Ti3AlC2Particle, Fe powder, Cu powder, Ni powder, Cr powder pass through mixing, precompressed drying and discharge plasma sintering, are made with Ti3AlC2And TiCxFor the Fe based high-temp-resistant composite material for lubricating phase.Operation of the present invention is simple, short preparation period, and Fe based high-temp-resistant composite material obtained not only has lower coefficient of friction and wear rate, but also has the performances such as high-mechanic, high intensity, is suitable for the antifriction materials such as self-lubricating bearing under mass production bad working environments.
Description
Technical field
The present invention relates to technical field of composite materials, specifically a kind of Fe based high-temp-resistant composite material containing polynary lubrication phase
And preparation method thereof.
Background technique
With the continuous research and development of Fe alloy, performance constantly improves, at present the fields such as aerospace bearing, space flight undercarriage
Attempting using Fe based self lubricated composite material.Manmen Liu et al. people utilizes Ti in many studies3AlC2It is found instead of graphite
Ti3AlC2Ag (Al) solid solution is formed in interface area after decomposition, greatly strengthens Ag/Ti3AlC2The mechanical property of composite material,
Improve friction and wear behavior and intensity [Manmen Liu, Jialin Chen, hao Cui, et al.Ag/Ti3AlC2
Composites withhighhardness, highstrength andhigh conductivity.Materials
Letters, 2017].The research Ti such as Huang vibration warbler3AlC2When performance, Ti is had found by steel disk opposite grinding3AlC2High-speed friction performance
[Huang vibration warbler .Ti very well3AlC2The coefficient of sliding friction and friction surface the national high-performance ceramics of oxidation behavior the 13rd
Art annual meeting abstract collection .2004].The obtained Ti such as Chen Lin3AlC2/ Fe composite material, composite material remove after 800 DEG C of thermal shocks
30vol.%Ti3AlC2Except/Fe, other probe intensities are basically unchanged or slightly increase, and show good anti-thermal shock characteristic
[Chen Lin, Zhai Hongxiang, Huang vibration warbler, Xu Hao .Ti3AlC2The preparation of/Fe composite material and mechanical characteristic artificial lens journal, 2015,
44(11):3288-3291].CHEN XINHUAs etc. pass through research Ti3AlC2Ti is found with Fe reacting to each other at high temperature3AlC2With Fe
Reaction generates TiC0.6Phase, analysis find Ti3AlC2The precipitation of middle Al is to lead to Ti3AlC2Just in the case where being far below its decomposition temperature
Principal element [CHEN XINHUA, Zhai Hongxiang, Song Pengfei, the Huang vibration warbler .Ti to react with Fe3AlC2With Fe at high temperature react row
For Rare Metals Materials and engineering, 2011,40:499-502].Ti is made using the method for electroless copper in Wang Xiujuan etc.3AlC2-
After Cu material and copper powder, Ti3AlC2Material is sintered at 850 DEG C is made Ti3AlC2The composite material being evenly distributed, larger
Under friction pressure, contain 15vol.%Ti3AlC2Composite material coefficient of friction it is minimum up to 0.15, and polishing machine mentions
Nearly 20% [Wang Xiujuan .Ti is risen3AlC2The preparation of/Cu composite material and its performance study HeFei University of Technology, 2014].It is old
Road road etc. has studied Ti3AlC2With the temperature effect of Fe sill, the Ti at 1400 DEG C is proposed3AlC2Content is 10-
Al is from Ti when 40vol.%3AlC2In escape to form TiCxAnd then TiC is formed in situx- Fe based composites, TiCxIt improves
The overall performance of composite material [Chen Lulu .TiCxContent is to hot pressing for TiCxThe influence of-Fe based composites the 19th
National high-performance ceramics Annual Conference abstract collection, 2016:1].Although the studies above demonstrates Ti3AlC2With good lubricating properties
Can, but Ti3AlC2It easily falls off from matrix, the overall performance of composite material, especially greasy property is caused to be affected.Therefore,
The application for researching and proposing TiCx is to solve Ti3AlC2It is also easy to produce good one of the solution that friction falls off.
Summary of the invention
The purpose of the present invention is to provide it is a kind of containing it is polynary lubrication phase Fe based high-temp-resistant composite material and preparation method,
To solve the problems mentioned in the above background technology.
To achieve the above object, the invention provides the following technical scheme:
A kind of Fe based high-temp-resistant composite material containing polynary lubrication phase, the percent by volume of chemical component are as follows: TiCx 5-
20vol.%, Ti3AlC210-40vol.%, Cu 1-7vol.%, Ni 0.1-3vol.%, Cr 0.1-3vol.%, remaining is
Fe powder.
As a further solution of the present invention: the TiCxIn, 0.4≤x≤1.1.
As a further solution of the present invention: the TiCxThe granularity of powder is 2-45 μm.
As a further solution of the present invention: the Ti3AlC2The granularity of particle is 20-200 mesh.
As a further solution of the present invention: the Fe powder, Cu powder granularity be 10-30 μm.
As a further solution of the present invention: the granularity of the Ni powder is 1-20 μm.
As a further solution of the present invention: the granularity of the Cr powder is 10-60 μm.
The preparation method of the Fe based high-temp-resistant composite material containing polynary lubrication phase, comprising the following steps:
Step 1): first carrying out uniform ball to Cu powder, Ni powder, Cr powder, Fe powder using planetary ball mill in argon atmosphere and mix,
Alcohol is as dispersing agent, ratio of grinding media to material 6:1, revolving speed 200-350r/min, Ball-milling Time 0.5-2h；TiC is then addedx、Ti3AlC2
Particle, then with same rotational speed ball milling 1h；
Step 2): the mixed-powder of step 1) is dried in argon atmosphere, and is fitted into pre-molding in graphite jig, pressure
Power 15-30MPa, dwell time 10-30s, mould diameter 30mm；
Step 3): sintering temperature is 850-1250 DEG C, and heating rate is 40-100 DEG C/min, sintering pressure 20-
100MPa, vacuum degree 15-40Pa keep the temperature 5-30min, carry out discharge plasma sintering in argon atmosphere, obtain blank test specimen；
Step 4): the blank test specimen of step 3) preparation is subjected to surface polishing treatment and is obtained with Ti3AlC2And TiCxFor collaboration
Lubricate the Fe based high-temp-resistant composite material of phase.
As a further solution of the present invention: in step 1), abrading-ball uses WC sintered carbide ball.
The Fe based high-temp-resistant composite material containing polynary lubrication phase is in production self-lubricating bearing and antifriction material
Purposes.
Compared with prior art, the beneficial effects of the present invention are:
1) using Fe alloy as matrix, the compound of high-compactness and high rigidity can be obtained under the conditions of 850-1250 DEG C
Material；Ti3AlC2Belong to ternary layered ceramic compound, has gathered the excellent properties of ceramics and metal, Fe base can not only be strengthened
Self-lubricating composite, moreover it is possible to mutually enrich lubrication mechanism as lubrication, improve the higher dry friction coefficient of Fe alloy material and abrasion
The defect of rate；
2) the Fe base high temperature self lubricating composite material prepared not only has high-mechanic, high intensity, a high temperature resistance, and
Its self-lubricating property can be effectively improved under the action of multicomponent lubrication phase, the self-lubricating axis being more suitable under production bad working environments
Hold equal friction materials.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
In the embodiment of the present invention, one kind is provided with Ti3AlC2And TiCxPhase is lubricated for collaboration, and there is high-mechanic, high-strength
The good a kind of Fe based high-temp-resistant composite material and preparation method containing polynary lubrication phase of degree, wearability.
The percent by volume of the chemical component of Fe based high-temp-resistant composite material of the invention are as follows: TiCx5-20vol.%,
Ti3AlC210-40vol.%, Cu 1-7vol.%, Ni 0.1-3vol.%, Cr 0.1-3vol.%, remaining is iron powder.It is described
TiCxThe granularity of powder is 2-45 μm；Ti3AlC2The granularity of particle is 20-200 mesh；Fe powder, Cu powder granularity be 10-30 μm, Ni powder
Granularity be 1-20 μm, the granularity of Cr powder is 10-60 μm.
Containing it is polynary lubrication phase Fe based high-temp-resistant composite material preparation method the following steps are included:
Step 1), the preparation of mixed-powder
It first carries out uniform ball to Cu powder, Ni powder, Cr powder, Fe powder using planetary ball mill in argon atmosphere to mix, alcohol is made
For dispersing agent, abrading-ball uses WC sintered carbide ball, ratio of grinding media to material 6:1, revolving speed 200-350r/min, Ball-milling Time 0.5-2h；Then
TiC is addedx、Ti3AlC2Particle, then with same rotational speed ball milling 1h；
Step 2), pre-molding
The mixed-powder of step 1) is dried in argon atmosphere, and is fitted into pre-molding in graphite jig, pressure 15-
30MPa, dwell time 10-30s, mould diameter 30mm；
Step 3), discharge plasma sintering process
Sintering temperature is 850-1250 DEG C, and heating rate is 40-100 DEG C/min, sintering pressure 20-100MPa, vacuum
15-40Pa is spent, 5-30min is kept the temperature, carries out discharge plasma sintering in argon atmosphere, obtain blank test specimen；
The blank test specimen of step 3) preparation is carried out surface polishing treatment and obtained with Ti by step 4)3AlC2And TiCxFor collaboration
Lubricate the Fe based high-temp-resistant composite material of phase.
Embodiment 1
By percent by volume TiC0.45vol.%, Ti3AlC215vol.%, Cu 2.6vol.%, Ni 0.1vol.%,
Cr 0.1vol.%, remaining is Fe powder, weighs raw material；By granularity be 10 μm Cu, the Fe powder that granularity is 20 μm, granularity be 1 μm
Ni powder, that granularity is that 40 μm of Cr powder carries out uniform ball to it using planetary ball mill in argon atmosphere is mixed, alcohol is added
As dispersing agent, abrading-ball uses WC sintered carbide ball, ratio of grinding media to material 6:1, revolving speed 350r/min, Ball-milling Time 0.5h；Then it is added
The Ti of 160-200 mesh3AlC2Particle, 45 μm of TiC0.4, then with same rotational speed ball milling 1h, mixed-powder is made；By mixed powder
End is dried in argon atmosphere, and is fitted into pre-molding in the graphite jig that diameter is 30mm, pressure 15MPa, dwell time
10s；Then it puts it into and carries out discharge plasma sintering in furnace in argon atmosphere, 1000 DEG C of sintering temperature, 80 DEG C of heating rate/
Min, sintering pressure 30MPa, vacuum degree 40Pa keep the temperature 20min, obtain blank test specimen；The blank test specimen of above-mentioned preparation is carried out
Surface polishing treatment is obtained with Ti3AlC2And TiC0.4For the Fe base high temperature self lubricating composite material of collaboration lubrication phase.
Embodiment 2
By percent by volume TiC0.4For 10vol.%, Ti3AlC2It is for 15vol.%, Cu 2.6vol.%, Ni
1.2vol.%, Cr 2.4vol.%, remaining is Fe powder, weighs raw material；By granularity be 20 μm Cu powder, the Fe that granularity is 20 μm
Ni powder that powder, granularity are 20 μm, the Cr powder that granularity is 20 μm carry out it uniformly in argon atmosphere using planetary ball mill
Ball is mixed, alcohol is added as dispersing agent, abrading-ball uses WC sintered carbide ball, ratio of grinding media to material 6:1, revolving speed 200r/min, Ball-milling Time
0.6h；The Ti of 120-160 mesh is then added3AlC2Particle, 2 μm of TiC0.4, then with same rotational speed ball milling 1h, mixed powder is made
End；Mixed-powder is dried in argon atmosphere, and be fitted into diameter be 30mm graphite jig in pre-molding, pressure 30MPa,
Dwell time 10s；Then it puts it into and carries out discharge plasma sintering in furnace in argon atmosphere, 1000 DEG C of sintering temperature, heating
Rate 60 DEG C/min, sintering pressure 40MPa, vacuum degree 40Pa keep the temperature 20min, carry out discharge plasma sintering in argon atmosphere,
Obtain blank test specimen；By the blank test specimen of above-mentioned preparation carry out surface polishing treatment obtain it is described with Ti3AlC2And TiC0.4For
The Fe base high temperature self lubricating composite material of collaboration lubrication phase.
Embodiment 3
By percent by volume TiC0.4For 15vol.%, Ti3AlC2It is for 15vol.%, Cu 2.6vol.%, Ni
1.2vol.%, Cr 3vol.%, remaining is Fe powder, weighs raw material；By granularity be 10 μm Cu, Fe powder, Ni powder, Cr powder is in argon
Atmosphere enclose it is middle using planetary ball mill to carry out uniform ball to it mixed, alcohol is added and is used as dispersing agent, abrading-ball is using the conjunction of WC hard
Gold goal, ratio of grinding media to material 6:1, revolving speed 350r/min, Ball-milling Time 0.7h；The Ti of 80-120 mesh is then added3AlC2Particle, 30 μm
TiC0.4, then with same rotational speed ball milling 1h, mixed-powder is made；Mixed-powder is dried in argon atmosphere, and is packed into diameter and is
Pre-molding in the graphite jig of 30mm, pressure 20MPa, dwell time 30s；Then it puts it into furnace and is carried out in argon atmosphere
Discharge plasma sintering, 900 DEG C of sintering temperature, heating rate 60 DEG C/min, sintering pressure 35MPa, vacuum degree 30Pa, heat preservation
5min, argon atmosphere is interior to carry out discharge plasma sintering, obtains blank test specimen；The blank test specimen of above-mentioned preparation is subjected to surface throwing
Light processing obtains described with Ti3AlC2And TiC0.4For the Fe based high-temp-resistant composite material of collaboration lubrication phase.
Embodiment 4
By percent by volume TiC0.4For 20vol.%, Ti3AlC2It is for 15vol.%, Cu 2.6vol.%, Ni
1.2vol.%, Cr 0.6vol.%, remaining is Fe powder, weighs raw material；By granularity be 10 μm Cu powder, the Fe that granularity is 30 μm
Ni powder that powder, granularity are 20 μm, the Cr powder that granularity is 30 μm carry out it uniformly in argon atmosphere using planetary ball mill
Ball is mixed, alcohol is added as dispersing agent, abrading-ball uses WC sintered carbide ball, ratio of grinding media to material 6:1, revolving speed 350r/min, Ball-milling Time
0.8h；The Ti of 120-160 mesh is then added3AlC2Particle, 25 μm of TiC0.4, then with same rotational speed ball milling 1h, mixed powder is made
End；Mixed-powder is dried in argon atmosphere, and be fitted into diameter be 30mm graphite jig in pre-molding, pressure 50MPa,
Dwell time 30s；Then it puts it into and carries out discharge plasma sintering in furnace in argon atmosphere, 1000 DEG C of sintering temperature, heating
Rate 40 DEG C/min, sintering pressure 100MPa, vacuum degree 30Pa keep the temperature 30min, obtain blank test specimen；By the hair of above-mentioned preparation
Base test specimen carry out surface polishing treatment obtain it is described with Ti3AlC2And TiC0.4For the Fe based high-temp-resistant composite wood of collaboration lubrication phase
Material.
Embodiment 5
By percent by volume TiC0.4For 15vol.%, Ti3AlC2It is for 25vol.%, Cu 2.6vol.%, Ni
1.2vol.%, Cr 0.6vol.%, remaining is Fe powder, weighs raw material；Cu, the Fe that granularity is 10 μm for being 10 μm by granularity
Ni powder that powder, granularity are 1 μm, the Cr powder that granularity is 60 μm carry out uniform ball to it using planetary ball mill in argon atmosphere
It is mixed, alcohol is added as dispersing agent, abrading-ball uses WC sintered carbide ball, ratio of grinding media to material 6:1, revolving speed 250r/min, Ball-milling Time
0.9h；The Ti of 160-200 mesh is then added3AlC2Particle, 20 μm of TiC0.4, then with same rotational speed ball milling 1h, mixed powder is made
End；Mixed-powder is dried in argon atmosphere, and be fitted into diameter be 30mm graphite jig in pre-molding, pressure 15MPa,
Dwell time 20s；Then it puts it into and carries out discharge plasma sintering in furnace in argon atmosphere, 1250 DEG C of sintering temperature, heating
Rate 80 DEG C/min, sintering pressure 34MPa, vacuum degree 40Pa keep the temperature 25min, obtain blank test specimen；By the blank of above-mentioned preparation
Test specimen carry out surface polishing treatment obtain it is described with Ti3AlC2And TiC0.4Fe based high-temperature self-lubricating for collaboration lubrication phase is compound
Material.
Embodiment 6
By percent by volume TiC0.4For 15vol.%, Ti3AlC2It is for 30vol.%, Cu 3.8vol.%, Ni
1.2vol.%, Cr 0.6vol.%, remaining is Fe powder, weighs raw material；Cu, the Fe that granularity is 10 μm for being 20 μm by granularity
Ni powder that powder, granularity are 20 μm, the Cr powder that granularity is 10 μm carry out it uniformly in argon atmosphere using planetary ball mill
Ball is mixed, alcohol is added as dispersing agent, abrading-ball uses WC sintered carbide ball, ratio of grinding media to material 6:1, revolving speed 340r/min, Ball-milling Time
0.5h；The Ti of 160-200 mesh is then added3AlC2Particle, 20 μm of TiC0.4Particle, then with same rotational speed ball milling 1h, it is made mixed
Close powder；Mixed-powder is dried in argon atmosphere, and is fitted into pre-molding in the graphite jig that diameter is 30mm, pressure
20MPa, dwell time 20s；Then it puts it into and carries out discharge plasma sintering, sintering temperature 1250 in furnace in argon atmosphere
DEG C, heating rate 85 DEG C/min, sintering pressure 32MPa, vacuum degree 40Pa keep the temperature 19min, obtain blank test specimen；By above-mentioned system
Standby blank test specimen carry out surface polishing treatment obtain it is described with Ti3AlC2And TiC0.4For the Fe based high-temp-resistant of collaboration lubrication phase
Composite material.
Embodiment 7
By quality percentage TiC0.4For 15vol.%, Ti3AlC2It is for 40vol.%, Cu 3.8vol.%, Ni
1.2vol.%, Cr 0.6vol.%, remaining is Fe powder, weighs raw material；Cu, the Fe that granularity is 30 μm for being 10 μm by granularity
Ni powder that powder, granularity are 20 μm, the Cr powder that granularity is 40 μm carry out it uniformly in argon atmosphere using planetary ball mill
Ball is mixed, alcohol is added as dispersing agent, abrading-ball uses WC sintered carbide ball, ratio of grinding media to material 6:1, revolving speed 320r/min, Ball-milling Time
0.6h；The Ti of 160-200 mesh is then added3AlC2Particle, 20 μm of TiC0.4, then with same rotational speed ball milling 1h, mixed powder is made
End；Mixed-powder is dried in argon atmosphere, and be fitted into diameter be 30mm graphite jig in pre-molding, pressure 20MPa,
Dwell time 30s；Then it puts it into and carries out discharge plasma sintering in furnace in argon atmosphere, 850 DEG C of sintering temperature, heating speed
Rate 100 DEG C/min, sintering pressure 100MPa, vacuum degree 15Pa keep the temperature 18min, obtain blank test specimen；By the blank of above-mentioned preparation
Test specimen carry out surface polishing treatment obtain it is described with Ti3AlC2And TiC0.4For the Fe based high-temp-resistant composite wood of collaboration lubrication phase
Material.
Embodiment 8
By percent by volume TiC0.6For 9vol.%, Ti3AlC2It is for 18vol.%, Cu 3.8vol.%, Ni
1.2vol.%, Cr 0.6vol.%, remaining is Fe powder, weighs raw material；By granularity be 10 μm Fe powder, the Cu that granularity is 20 μm
Ni powder that powder, granularity are 3 μm, the Cr powder that granularity is 10 μm carry out uniform ball to it using planetary ball mill in argon atmosphere
It is mixed, alcohol is added as dispersing agent, abrading-ball uses WC sintered carbide ball, ratio of grinding media to material 6:1, revolving speed 220r/min, Ball-milling Time
0.7h；The Ti of 160-200 mesh is then added3AlC2Particle, 45 μm of TiC0.6, then with same rotational speed ball milling 1h, mixed powder is made
End；Mixed-powder is dried in argon atmosphere, and be fitted into diameter be 30mm graphite jig in pre-molding, pressure 30MPa,
Dwell time 30s；Then it puts it into and carries out discharge plasma sintering in furnace in argon atmosphere, 1050 DEG C of sintering temperature, heating
Rate 90 DEG C/min, sintering pressure 44MPa, vacuum degree 15Pa keep the temperature 10min, obtain blank test specimen；By the blank of above-mentioned preparation
Test specimen carry out surface polishing treatment obtain it is described with Ti3AlC2And TiC0.6Fe based high-temperature self-lubricating for collaboration lubrication phase is compound
Material.
Embodiment 9
By percent by volume TiC0.6For 13vol.%, Ti3AlC2It is for 18vol.%, Cu 3.8vol.%, Ni
1.2vol.%, Cr 0.6vol.%, remaining is Fe powder, weighs raw material；Cu, the Fe that granularity is 10 μm for being 10 μm by granularity
Ni powder that powder, granularity are 10 μm, the Cr powder that granularity is 10 μm carry out it uniformly in argon atmosphere using planetary ball mill
Ball mixes, and alcohol is added and is used as dispersing agent, and abrading-ball is using WC sintered carbide ball, ratio of grinding media to material 6:1, revolving speed 280r/min, when ball milling
Between 0.8h；The Ti of 120-160 mesh is then added3AlC2Particle, 2 μm of TiC0.6, then with same rotational speed ball milling 1h, mixed powder is made
End；Mixed-powder is dried in argon atmosphere, and be fitted into diameter be 30mm graphite jig in pre-molding, pressure 25MPa,
Dwell time 10s；Then it puts it into and carries out discharge plasma sintering in furnace in argon atmosphere, 1150 DEG C of sintering temperature, heating
Rate 90 DEG C/min, sintering pressure 41MPa, vacuum degree 30Pa keep the temperature 12min, obtain blank test specimen；By the blank of above-mentioned preparation
Test specimen carry out surface polishing treatment obtain it is described with Ti3AlC2And TiC0.6For the Fe based high-temp-resistant composite wood of collaboration lubrication phase
Material.
Embodiment 10
By percent by volume TiC0.6For 13vol.%, Ti3AlC2It is for 23vol.%, Cu 3.8vol.%, Ni
1.2vol.%, Cr 0.6vol.%, remaining is Fe powder, weighs raw material；Cu, the Fe that granularity is 30 μm for being 30 μm by granularity
Ni powder that powder, granularity are 5 μm, the Cr powder that granularity is 40 μm carry out uniform ball to it using planetary ball mill in argon atmosphere
It is mixed, alcohol is added as dispersing agent, abrading-ball uses WC sintered carbide ball, ratio of grinding media to material 6:1, revolving speed 280r/min, Ball-milling Time
0.9h；The Ti of 120-160 mesh is then added3AlC2Particle, 2 μm of TiC0.6, then with same rotational speed ball milling 1h, mixed powder is made
End；Mixed-powder is dried in argon atmosphere, and be fitted into diameter be 30mm graphite jig in pre-molding, pressure 30MPa,
Dwell time 10s；Then it puts it into and carries out discharge plasma sintering in furnace in argon atmosphere, 1250 DEG C of sintering temperature, heating
Rate 90 DEG C/min, sintering pressure 100MPa, vacuum degree 30Pa keep the temperature 12min, obtain blank test specimen；By the hair of above-mentioned preparation
Base test specimen carry out surface polishing treatment obtain it is described with Ti3AlC2And TiC0.6For the Fe based high-temp-resistant composite wood of collaboration lubrication phase
Material.
Embodiment 11
By percent by volume TiC0.6For 18vol.%, Ti3AlC2It is for 23vol.%, Cu 3.8vol.%, Ni
1.2vol.%, Cr 0.6vol.%, remaining is Fe powder, weighs raw material；Cu, the Fe that granularity is 30 μm for being 30 μm by granularity
Ni powder that powder, granularity are 3 μm, the Cr powder that granularity is 60 μm carry out uniform ball to it using planetary ball mill in argon atmosphere
It is mixed, alcohol is added as dispersing agent, abrading-ball uses WC sintered carbide ball, ratio of grinding media to material 6:1, revolving speed 250r/min, Ball-milling Time 2h；
The Ti of 120-160 mesh is then added3AlC2Particle, 45 μm of TiC0.6, then with same rotational speed ball milling 1h, mixed-powder is made；It will
Mixed-powder is dried in argon atmosphere, and is fitted into pre-molding in the graphite jig that diameter is 30mm, pressure 20MPa, pressure maintaining
Time 30s；Then it puts it into and carries out discharge plasma sintering in furnace in argon atmosphere, 975 DEG C of sintering temperature, heating rate
100 DEG C/min, sintering pressure 39MPa, vacuum degree 15Pa, 21min is kept the temperature, blank test specimen is obtained；The blank of above-mentioned preparation is tried
Part carry out surface polishing treatment obtain it is described with Ti3AlC2And TiC0.6For the Fe based high-temp-resistant composite material of collaboration lubrication phase.
Embodiment 12
By percent by volume TiC1.1For 15vol.%, Ti3AlC2It is for 32vol.%, Cu 3.8vol.%, Ni
1.2vol.%, Cr 2.4vol.%, remaining is Fe powder, weighs raw material；Cu, the Fe that granularity is 10 μm for being 10 μm by granularity
Ni powder that powder, granularity are 1 μm, the Cr powder that granularity is 10 μm carry out uniform ball to it using planetary ball mill in argon atmosphere
It is mixed, alcohol is added as dispersing agent, abrading-ball uses WC sintered carbide ball, ratio of grinding media to material 6:1, revolving speed 200r/min, Ball-milling Time 2h；
The Ti of 120-160 mesh is then added3AlC2Particle, 45 μm of TiC1.1, then with same rotational speed ball milling 1h, mixed-powder is made；It will
Mixed-powder is dried in argon atmosphere, and is fitted into pre-molding in the graphite jig that diameter is 30mm, pressure 20MPa, pressure maintaining
Time 30s；Then it puts it into and carries out discharge plasma sintering in furnace in argon atmosphere, 1050 DEG C of sintering temperature, heating rate
80 DEG C/min, sintering pressure 30MPa, vacuum degree 40Pa, 20min is kept the temperature, blank test specimen is obtained；By the blank test specimen of above-mentioned preparation
Carry out surface polishing treatment obtain it is described with Ti3AlC2And TiC1.1For the Fe based high-temp-resistant composite material of collaboration lubrication phase.
Embodiment 13
By percent by volume TiC0.4For 15vol.%, Ti3AlC2It is for 35vol.%, Cu 2.6vol.%, Ni
1.2vol.%, Cr 0.6vol.%, remaining is Fe powder, and the Cu that granularity is 10 μm, the Fe powder that granularity is 10 μm, granularity are 10 μm
Ni powder, granularity be 10 μm of Cr powder, 20 μm of TiC0.4Uniform ball is carried out to it using planetary ball mill in argon atmosphere
It is mixed, alcohol is added as dispersing agent, abrading-ball uses WC sintered carbide ball, ratio of grinding media to material 4:1, revolving speed 250r/min, Ball-milling Time
0.9h；The Ti of 160-200 mesh is then added3AlC2Particle, then with same rotational speed ball milling 0.5h, mixed-powder is made；By mixed powder
End is dried in argon atmosphere, and is fitted into pre-molding in the graphite jig that diameter is 30mm, pressure 30MPa, dwell time
Then 20s puts it into and carries out discharge plasma sintering in furnace in argon atmosphere, sintering temperature is 1200 DEG C, and heating rate is
80 DEG C/min, sintering pressure 34MPa, vacuum degree 40Pa, 25min is kept the temperature, discharge plasma sintering is carried out in argon atmosphere, obtains
To blank test specimen；By the blank test specimen of above-mentioned preparation carry out surface polishing treatment obtain it is described with TiC0.4、Ti3AlC2For lubrication
The Fe based high-temp-resistant self-lubricating composite of phase.
Embodiment 14
By percent by volume TiC0.6For 20vol.%, Ti3AlC2It is for 20vol.%, Cu 3.2vol.%, Ni
1.2vol.%, Cr 0.6vol.%, remaining is Fe powder, Cu that granularity is 10 μm, the Fe powder that granularity is 10 μm, 10 μm of Ni
Powder, 10 μm of Cr powder, 35 μm of TiC0.6Uniform ball is carried out to it using planetary ball mill in argon atmosphere to mix, and wine is added
Essence is used as dispersing agent, and abrading-ball uses WC sintered carbide ball, ratio of grinding media to material 4:1, revolving speed 350r/min, Ball-milling Time 1.8h；Then add
Enter the Ti of 120-160 mesh3AlC2Particle, then with same rotational speed ball milling 0.5h, mixed-powder is made；By mixed-powder in argon atmospher
Interior drying is enclosed, and is fitted into pre-molding in the graphite jig that diameter is 30mm, pressure 25MPa, dwell time 20s；Then by it
It is put into furnace and carries out discharge plasma sintering in argon atmosphere, sintering temperature is 1000 DEG C, and heating rate is 85 DEG C/min, sintering
Pressure is 40MPa, vacuum degree 15Pa, keeps the temperature 14min, carries out discharge plasma sintering in argon atmosphere, obtain blank test specimen；It will
The blank test specimen of above-mentioned preparation carry out surface polishing treatment obtain it is described with TiC0.6、Ti3AlC2For the Fe Ji Naigao for lubricating phase
Warm self-lubricating composite.
Embodiment 15
By percent by volume TiC0.8For 5vol.%, Ti3AlC2It is for 26vol.%, Cu 4.8vol.%, Ni
1.2vol.%, Cr 0.6vol.%, remaining is Fe powder, Cu that granularity is 10 μm, the Fe powder that granularity is 30 μm, 20 μm of Ni
Powder, 20 μm of Cr powder, 20 μm of TiC0.8Uniform ball is carried out to it using planetary ball mill in argon atmosphere to mix, and wine is added
Essence is used as dispersing agent, and abrading-ball uses WC sintered carbide ball, ratio of grinding media to material 4:1, revolving speed 220r/min, Ball-milling Time 1.2h；Then add
Enter the Ti of 120-160 mesh3AlC2Particle, then with same rotational speed ball milling 0.5h, mixed-powder is made；By mixed-powder in argon atmospher
Interior drying is enclosed, and is fitted into pre-molding in the graphite jig that diameter is 30mm, pressure 25MPa, dwell time 10s；Then by it
It is put into furnace and carries out discharge plasma sintering in argon atmosphere, sintering temperature is 1050 DEG C, and heating rate is 80 DEG C/min, sintering
Pressure is 48MPa, vacuum degree 40Pa, keeps the temperature 13min, carries out discharge plasma sintering in argon atmosphere, obtain blank test specimen；It will
The blank test specimen of above-mentioned preparation carry out surface polishing treatment obtain it is described with TiC0.8、Ti3AlC2For the Fe Ji Naigao for lubricating phase
Warm self-lubricating composite.
Embodiment 16
By percent by volume TiC0.8For 12vol.%, Ti3AlC2It is for 23vol.%, Cu 2.8vol.%, Ni
1.2vol.%, Cr 0.6vol.%, remaining be Fe powder, the Cu that granularity is 20 μm, the Fe powder that granularity is 20 μm, Ni powder, Cr powder,
25 μm of TiC0.8Uniform ball is carried out to it using planetary ball mill in argon atmosphere to mix, and alcohol is added as dispersing agent, mill
Ball uses WC sintered carbide ball, ratio of grinding media to material 4:1, revolving speed 250r/min, Ball-milling Time 1.5h；80-120 purpose is then added
Ti3AlC2Particle, then with same rotational speed ball milling 0.5h, mixed-powder is made；Mixed-powder is dried in argon atmosphere, and is filled
Enter pre-molding in the graphite jig that diameter is 30mm, pressure 25MPa, dwell time 10s；Then argon atmospher in furnace is put it into
Enclose interior carry out discharge plasma sintering, sintering temperature is 1150 DEG C, and heating rate is 70 DEG C/min, sintering pressure 50MPa, very
Reciprocal of duty cycle 40Pa keeps the temperature 28min, carries out discharge plasma sintering in argon atmosphere, obtain blank test specimen；By the blank of above-mentioned preparation
Test specimen carry out surface polishing treatment obtain it is described with TiC0.8、Ti3AlC2For the Fe based high-temp-resistant self-lubricating composite wood for lubricating phase
Material.
Embodiment 17
By percent by volume TiC0.8For 7vol.%, Ti3AlC2It is for 35vol.%, Cu 3.8vol.%, Ni
1.2vol.%, Cr 0.6vol.%, remaining is Fe powder, Cu that granularity is 10 μm, the Fe powder that granularity is 30 μm, 10 μm of Ni
Powder, 10 μm of Cr powder, 5 μm of TiC0.8Uniform ball is carried out to it using planetary ball mill in argon atmosphere to mix, and alcohol is added
As dispersing agent, abrading-ball uses WC sintered carbide ball, ratio of grinding media to material 4:1, revolving speed 240r/min, Ball-milling Time 1.8h；Then it is added
The Ti of 80-120 mesh3AlC2Particle, then with same rotational speed ball milling 0.5h, mixed-powder is made；By mixed-powder in argon atmosphere
Drying, and it is fitted into pre-molding in the graphite jig that diameter is 30mm, pressure 30MPa, dwell time 30s；Then it puts it into
Discharge plasma sintering is carried out in furnace in argon atmosphere, sintering temperature is 900 DEG C, and heating rate is 70 DEG C/min, sintering pressure
For 50MPa, vacuum degree 15Pa, 25min is kept the temperature, discharge plasma sintering is carried out in argon atmosphere, obtains blank test specimen；It will be above-mentioned
The blank test specimen of preparation carry out surface polishing treatment obtain it is described with TiC0.8、Ti3AlC2To lubricate the Fe based high-temp-resistant of phase certainly
Lubricating composite.
Embodiment 18
By percent by volume TiC1.1For 15vol.%, Ti3AlC2It is for 25vol.%, Cu 3.8vol.%, Ni
1.2vol.%, Cr 0.6vol.%, remaining is the Cu that Fe Powder Particle Size is 20 μm, granularity is 20 μm Fe powder, Ni powder, Cr powder, 2
μm TiC1.1Uniform ball is carried out to it using planetary ball mill in argon atmosphere to mix, and alcohol is added as dispersing agent, abrading-ball
Using WC sintered carbide ball, ratio of grinding media to material 4:1, revolving speed 320r/min, Ball-milling Time 1.4h；160-200 mesh Ti is then added3AlC2
Particle, then with same rotational speed ball milling 0.5h, mixed-powder is made；Mixed-powder is dried in argon atmosphere, and is packed into diameter
For pre-molding in the graphite jig of 30mm, pressure 30MPa, dwell time 20s；Then put it into furnace in argon atmosphere into
Row discharge plasma sintering, sintering temperature are 1050 DEG C, and heating rate is 100 DEG C/min, sintering pressure 49MPa, vacuum degree
30Pa keeps the temperature 30min, carries out discharge plasma sintering in argon atmosphere, obtain blank test specimen；By the blank test specimen of above-mentioned preparation
Carry out surface polishing treatment obtain it is described with TiC1.1、Ti3AlC2For the Fe based high-temp-resistant self-lubricating composite for lubricating phase.
The performance of Fe based high-temp-resistant composite material made from above-described embodiment 1-18 is as shown in table 1.
The performance of composite material made from 1 the various embodiments described above of table
The invention has the following advantages that
1) using Fe alloy as matrix, the compound of high-compactness and high rigidity can be obtained under the conditions of 850-1250 DEG C
Material；Ti3AlC2Belong to ternary layered ceramic compound, has gathered the excellent properties of ceramics and metal, Fe base can not only be strengthened
Self-lubricating composite, moreover it is possible to mutually enrich lubrication mechanism as lubrication, improve the higher dry friction coefficient of Fe alloy material and abrasion
The defect of rate；
2) the Fe base high temperature self lubricating composite material prepared not only has high-mechanic, high intensity, a high temperature resistance, and
Its self-lubricating property can be effectively improved under the action of multicomponent lubrication phase, the self-lubricating axis being more suitable under production bad working environments
Hold equal friction materials.
The above are merely the preferred embodiment of the present invention, it is noted that for those skilled in the art, not
Under the premise of being detached from present inventive concept, several modifications and improvements can also be made, these also should be considered as protection model of the invention
It encloses, these all will not influence the effect and patent practicability that the present invention is implemented.
Claims (10)
1. a kind of Fe based high-temp-resistant composite material containing polynary lubrication phase, which is characterized in that the percent by volume of its chemical component
Are as follows: TiCx5-20vol.%, Ti3AlC210-40vol.%, Cu 1-7vol.%, Ni 0.1-3vol.%, Cr 0.1-
3vol.%, remaining is Fe powder.
2. the Fe based high-temp-resistant composite material according to claim 1 containing polynary lubrication phase, which is characterized in that the TiCx
In, 0.4≤x≤1.1.
3. the Fe based high-temp-resistant composite material according to claim 2 containing polynary lubrication phase, which is characterized in that the TiCx
The granularity of powder is 2-45 μm.
4. the Fe based high-temp-resistant composite material according to claim 1 containing polynary lubrication phase, which is characterized in that described
Ti3AlC2The granularity of particle is 20-200 mesh.
5. the Fe based high-temp-resistant composite material according to claim 4 containing polynary lubrication phase, which is characterized in that the Fe
Powder, Cu powder granularity be 10-30 μm.
6. the Fe based high-temp-resistant composite material according to claim 5 containing polynary lubrication phase, which is characterized in that the Ni powder
Granularity be 1-20 μm.
7. the Fe based high-temp-resistant composite material according to claim 6 containing polynary lubrication phase, which is characterized in that the Cr powder
Granularity be 10-60 μm.
8. a kind of such as the described in any item preparation sides containing the polynary Fe based high-temp-resistant composite materials for lubricating phase claim 1-7
Method, which comprises the following steps:
Step 1): first carrying out uniform ball to Cu powder, Ni powder, Cr powder, Fe powder using planetary ball mill in argon atmosphere and mix, alcohol
As dispersing agent, ratio of grinding media to material 6:1, revolving speed 200-350r/min, Ball-milling Time 0.5-2h；TiC is then addedx、Ti3AlC2Particle,
Again with same rotational speed ball milling 1h；
Step 2): the mixed-powder of step 1) is dried in argon atmosphere, and is fitted into pre-molding in graphite jig, pressure
15-30MPa, dwell time 10-30s, mould diameter 30mm；
Step 3): sintering temperature be 850-1250 DEG C, heating rate be 40-100 DEG C/min, sintering pressure 20-100MPa, very
Reciprocal of duty cycle 15-40Pa keeps the temperature 5-30min, carries out discharge plasma sintering in argon atmosphere, obtain blank test specimen；
Step 4): the blank test specimen of step 3) preparation is subjected to surface polishing treatment and is obtained with Ti3AlC2And TiCxFor collaboration lubrication
The Fe based high-temp-resistant composite material of phase.
9. the preparation method of the Fe based high-temp-resistant composite material according to claim 8 containing polynary lubrication phase, feature exist
In in step 1), abrading-ball uses WC sintered carbide ball.
10. if the described in any item Fe based high-temp-resistant composite materials containing polynary lubrication phase of claim 1-7 are in production self-lubricating
Purposes in bearing and antifriction material.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018109423616 | 2018-08-17 | ||
| CN201810942361.6A CN109022992A (en) | 2018-08-17 | 2018-08-17 | A kind of Fe based high-temp-resistant composite material and preparation method containing polynary lubrication phase |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110257680A true CN110257680A (en) | 2019-09-20 |
Family
ID=64631118
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810942361.6A Pending CN109022992A (en) | 2018-08-17 | 2018-08-17 | A kind of Fe based high-temp-resistant composite material and preparation method containing polynary lubrication phase |
| CN201910724405.2A Pending CN110257680A (en) | 2018-08-17 | 2019-08-07 | A kind of Fe based high-temp-resistant composite material and preparation method containing polynary lubrication phase |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810942361.6A Pending CN109022992A (en) | 2018-08-17 | 2018-08-17 | A kind of Fe based high-temp-resistant composite material and preparation method containing polynary lubrication phase |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN109022992A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111826575A (en) * | 2020-07-09 | 2020-10-27 | 燕山大学 | Preparation method of TiCx-enhanced Ti3AlC 2-Fe-based high-temperature-resistant self-lubricating composite material |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114058921A (en) * | 2021-09-29 | 2022-02-18 | 五矿营口中板有限责任公司 | Iron-based self-lubricating bearing material for continuous casting machine and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104060173A (en) * | 2014-07-02 | 2014-09-24 | 北京交通大学 | Ti3AlC2 enhanced Fe-based composite and in-situ heat extrusion preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107904515B (en) * | 2017-11-14 | 2019-09-10 | 燕山大学 | A kind of Fe based self lubricated composite material |
-
2018
- 2018-08-17 CN CN201810942361.6A patent/CN109022992A/en active Pending
-
2019
- 2019-08-07 CN CN201910724405.2A patent/CN110257680A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104060173A (en) * | 2014-07-02 | 2014-09-24 | 北京交通大学 | Ti3AlC2 enhanced Fe-based composite and in-situ heat extrusion preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 冯绍亮: "Ti3SiC2对Fe基滑动轴承材料摩擦磨损性能的影响", 《硕士学位论文》 * |
| 陈新华等: "TiCx/Fe(Al,Ti)复合材料的常压制备及性能", 《北京交通大学学报》 * |
| 陈路路等: "TiCx含量对热压制备TiCx-Fe基复合材料力学性能的影响", 《稀有金属材料与工程》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111826575A (en) * | 2020-07-09 | 2020-10-27 | 燕山大学 | Preparation method of TiCx-enhanced Ti3AlC 2-Fe-based high-temperature-resistant self-lubricating composite material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109022992A (en) | 2018-12-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109022993A (en) | A kind of Fe based high-temp-resistant self-lubricating composite and preparation method thereof | |
| CN109161710A (en) | A kind of high-entropy alloy composite material and preparation method containing self-lubricating phase | |
| CN110257680A (en) | A kind of Fe based high-temp-resistant composite material and preparation method containing polynary lubrication phase | |
| Akhlaghi et al. | Effect of the SiC content on the tribological properties of hybrid Al/Gr/SiC composites processed by in situ powder metallurgy (IPM) method | |
| CN102747240A (en) | Preparation method of carbon-nanotube-enhanced magnesium-based composite material | |
| CN107904515B (en) | A kind of Fe based self lubricated composite material | |
| CN109695007B (en) | Preparation method of metal-carbon composite material | |
| CN109280818B (en) | Wear-resistant antifriction aluminum-based composite material | |
| CN107916349A (en) | A kind of TiAl based high-temp-resistants self-lubricating composite and preparation method | |
| CN109321767A (en) | A kind of method that compound augmentation prepares aluminium based composite material enhanced by miscellaneous granules | |
| CN104072138A (en) | Tungsten carbide-cubic boron nitride composite material and preparation method thereof | |
| CN108772564B (en) | Selective laser melting formed graphene reinforced aluminum matrix composite and preparation method thereof | |
| CN109570493A (en) | A kind of composite powder and preparation method thereof of metal-metal carbide cladding carbon particle | |
| CN102094146A (en) | Novel high-temperature resistant self-lubricating sliding bearing material and preparation method thereof | |
| CN109136722A (en) | TiAl-Ti3AlC2Self-lubricating composite and preparation method thereof | |
| CN108754275B (en) | A kind of TiAl based high-temp-resistant self-lubricating composite and preparation method thereof | |
| CN109321849A (en) | A kind of Fe based self lubricated composite material and preparation method thereof suitable for high/low temperature | |
| CN105695872B (en) | A kind of method that oiliness bearing is manufactured for the prediffusion combining powder and its manufacture method of powder metallurgy and using the powder | |
| CN110565026A (en) | Ti3AlC2Fe-Fe alloy-based high-temperature-resistant self-lubricating composite material and preparation method thereof | |
| CN102102155A (en) | Preparation method of highly-compact nickel-aluminium-based self-lubricating material | |
| CN109207835A (en) | A kind of Fe sound stage width application temperature self-lubricating composite and preparation method thereof | |
| CN106939381A (en) | A kind of copper silver-based self-lubricating composite and preparation method thereof | |
| CN114086172A (en) | Slewing bearing gear tooth surface with wear-resistant coating and preparation method thereof | |
| CN110981489B (en) | TiNx-Ti3SiC2Composite material and preparation method thereof | |
| CN108220644A (en) | A kind of Nano-meter SiO_22The preparation method of reinforced aluminum matrix composites |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190920 |