激光表面织构化生物陶瓷涂层及其摩擦磨损性能 
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Textured Surface on a Bioceramic Coating via a Femtosecond Laser and its Friction and Wear Properties
1 浙江工业大学特种装备制造与先进加工技术教育部/浙江省重点实验室, 浙江 杭州 310014
2 浙江工业大学之江学院, 浙江 绍兴 312030
图 & 表
图 1. 模型示意图。 (a)圆形织构几何模型; (b)膜厚示意图
Fig. 1. Model schematics. (a) Geometry model of circular texture; (b) illustration of film thickness
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图 2. 具有不同织构形状的织构单元在流体动压润滑条件下的无量纲压力分布图。(a)圆形织构; (b)椭圆形织构(α=0°); (c)椭圆形织构(α=90°)
Fig. 2. Dimensionless pressure distribution of textured elements with different texture shapes under hydrodynamic lubrication. (a) Circular texture; (b) elliptical texture (α=0°); (c) elliptical texture (α=90°)
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图 3. 具有不同织构形状的织构单元在混合润滑条件下的无量纲压力分布图。(a)圆形织构; (b)椭圆形织构(α=0°); (c)椭圆形织构(α=90°)
Fig. 3. Dimensionless pressure distribution of textured elements with different texture shapes under mixed lubrication. (a) Circular texture; (b) elliptical texture (α=0°); (c) elliptical texture (α=90°)
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图 4. 不同织构形状的摩擦系数随织构面覆率的变化曲线
Fig. 4. Curves of friction coefficient of different texture shapes with coverage ratios
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图 5. 复合涂层制备示意图
Fig. 5. Illustration of composite coating preparation
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图 6. 具有不同排布形式的椭圆形织构阵列的SEM图。(a) α=0°;(b) α=45°;(c) α=90°
Fig. 6. SEM figures of elliptical texture arrays in different arrays. (a) α=0°; (b) α=45°; (c) α=90°
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图 7. 具有不同面覆率的圆凹坑阵列的SEM图。 (a) Sp=10%;(b) Sp=20%;(c) Sp=25%;(d) Sp=30%
Fig. 7. SEM figures of circular texture arrays with different coverage ratios. (a) Sp=10%; (b) Sp=20%; (c) Sp=25%; (d) Sp=30%
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图 8. 微凹坑的平均三维轮廓曲线图。(a)圆凹坑织构沿直径方向;(b)椭圆织构沿长轴方向;(c)椭圆织构沿短轴方向
Fig. 8. 3-D contour curves of micro-pit texture on average. (a) Curve of circular pit texture along diameter direction; (b) curve of elliptical texture along the long axis; (c) curve of elliptical texture along the short axis
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图 9. 不同条件下的织构试样的摩擦系数曲线。 (a)具有不同面覆率的圆形织构; (b)不同织构形状
Fig. 9. Coefficient of friction curves of texture sample under different conditions. (a) Circular texture of different coverage ratios; (b) texture of different shapes
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图 10. 涂层磨损后的表面形貌。(a) Sp=25%; (b) Sp=30%
Fig. 10. Surface morphology of coating after wear. (a) Sp=25%; (b) Sp=30%
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图 11. 实验结果。 (a)圆形织构试样在不同面覆率下的磨损深度;(b)不同织构形状的磨损深度及摩擦系数
Fig. 11. Experimental results. (a) Wear depth of circular texture with different coverage ratios; (b) wear depth and coefficient of friction of texture with different shapes
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表 1承载力、摩擦力和摩擦系数的对比
Table1. Comparison of bearing capacity, friction and coefficient of friction
| Bearingcapacity | Friction | Coefficientof friction |
|---|
| Results of this paper | 0.0286 | 0.00280 | 0.0979 | | Results of Ref. [22] | 0.0277 | 0.00279 | 0.1011 | | Relative error /% | 3.25 | 0.36 | 3.16 |
|
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表 2不同织构形状在流体动压润滑条件下的摩擦系数
Table2. Coefficient of friction of different texture shapes under hydrodynamic lubrication
| Circular texture | Elliptical texture(α=0°) | Elliptical texture(α=90°) |
|---|
| 0.0823 | 0.0740 | 0.0912 |
|
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表 3不同织构形状在混合润滑条件下的摩擦系数
Table3. Coefficient of friction of different texture shapes under mixed lubrication
| Circular texture | Elliptical texture(α=0°) | Elliptical texture(α=90°) |
|---|
| 0.1642 | 0.1562 | 0.1729 |
|
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鲍雨梅, 王成武, 金志伟, 吴霄, 鲍佳峰. 激光表面织构化生物陶瓷涂层及其摩擦磨损性能[J]. 中国激光, 2019, 46(2): 0203003. Yumei Bao, Chengwu Wang, Zhiwei Jin, Xiao Wu, Jiafeng Bao. Textured Surface on a Bioceramic Coating via a Femtosecond Laser and its Friction and Wear Properties[J]. Chinese Journal of Lasers, 2019, 46(2): 0203003.
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