石墨烯增强钛基复合材料的摩擦磨损性能

张静雯; 葛张一; 万召梅; 李九霄; 马晓沛; 张睿; 王仁杰; 郑龑; 陶俊周

doi:10.12299/jsues.23-0272

石墨烯增强钛基复合材料的摩擦磨损性能

doi: 10.12299/jsues.23-0272

1.
上海工程技术大学材料科学与工程学院, 上海 201620
2.
兖矿东华重工有限公司, 山东济宁 273500
3.
北汽福田汽车股份有限公司, 北京 100096

基金项目: 上海市Ⅲ类高峰学科——材料科学与工程（高能束智能加工与绿色制造）

详细信息

作者简介:
张静雯（2001− ），女，本科生，研究方向为钛合金及钛基复合材料。E-mail：2330372572@qq.com

通讯作者:
李九霄（1978− ），女，副教授，博士，研究方向为钛合金及钛基复合材料。E-mail：lijiuxiao@126.com

中图分类号: O436
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- 被引次数: 0
出版历程
- 收稿日期: 2023-12-19
- 刊出日期: 2024-12-31

Friction and wear properties of graphene reinforced titanium matrix composites

1.
School of Materials Science and Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
2.
Yankuang Donghua Heavy Industry Co., Ltd., Jining 273500, China
3.
BAIC Foton Automotive Co., Ltd., Beijing 100096, China

Funds: Class Ⅲ Peak Discipline of Shanghai-Materials Science and Engineering (High-Energy Beam Intelligent Processing and Green Manufacturing)

摘要

摘要: 钛合金密度低、比强度和比刚度高、耐高温、耐腐蚀，但其硬度低、导热性差、黏性高、耐磨性差，这成为制约钛合金应用的重要因素。采用粉末冶金法制备石墨烯增强钛基复合材料，研究石墨烯对显微组织、硬度、拉伸性能和摩擦磨损性能的影响。结果表明：钛基复合材料晶粒尺寸较基体细小，并随着石墨烯含量的增加而减小。与基体相比，钛基复合材料的硬度、强度和摩擦磨损性能均得到显著提高。随着石墨烯含量的增加，硬度和强度升高，塑性下降，摩擦因数和磨损量都有所降低。当烧结温度为1273 K，石墨烯质量分数为0.5%时，钛基复合材料的硬度、拉伸和摩擦磨损综合性能最优，磨损量最小，较纯钛降低40%。
- 石墨烯 /
- 钛基复合材料 /
- 增强体 /
- 摩擦因数 /
- 磨损量
Abstract: Titanium alloy has low density, high specific strength, high stiffness, high temperature resistance and corrosion resistance. However, its low hardness, poor thermal conductivity, high viscosity and poor wear resistance have become an important problem restricting the application of titanium alloys. Graphene reinforced titanium matrix composites were prepared by powder metallurgy, the effects of graphene on microstructure, hardness, tensile properties and friction and wear properties were studied. The results show that the grain size of titanium matrix composites is smaller than that of matrix, and the grain size decreases with the increase of graphene content. Compared with the matrix, the hardness, strength and friction and wear properties of titanium matrix composites are significantly improved. With the increasing of graphene content, the hardness and strength increase, the plasticity decreases, and the friction coefficient and wear amount both decrease. When the sintering temperature is 1273 K and the mass fraction of graphene is 0.5%, the hardness, tensile and friction wear properties of titanium matrix composites are the best, and the wear loss is the lowest, which is 40% lower than that of matrix.
- graphene /
- titanium matrix composites (TMCs) /
- reinforcement /
- friction coefficient /
- wear loss

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图 1 基体粉和石墨烯混合粉末

Figure 1. Mixed powder of matrix powder and graphene

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图 2 基体和TMC显微组织

Figure 2. Microstructure of matrix and TMC

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图 3 基体和TMCs的硬度

Figure 3. Hardness of matrix and TMCs

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图 4 基体和TMCs的拉伸性能

Figure 4. Tensile properties of matrix and TMCs

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图 5 基体和TMCs在1273 K下烧结后的平均摩擦因数

Figure 5. Average friction coefficient of pure Ti and TMCs sintered at 1273 K

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图 6 基体和TMCs的磨损量

Figure 6. Wear loss of matrix and TMCs

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图 7 TMC3磨损表面形貌图

Figure 7. Wear surface morphology of TMC3

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