Page 65 - 摩擦学学报2025年第4期
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第 4 期 于涵, 等: 基于大豆基础油的聚多巴胺改性黑磷纳米添加剂的摩擦学性能研究 553
0.25 1.2 0.20
(a) Pure oil (b) Wear track width
BP 1.0 Average friction coefficient 0.15
PDA
0.20
BP-PDA
Friction coefficient 0.15 Wear track width/mm 0.8 0.10 Average friction coefficient
0.6
0.4
0.10
0.2 0.05
0.05 0.0 0.00
0 5 10 15 20 25 30 Pure oil BP PDA BP/PDA
Time/min Samples
1.2 0.20 1.0 0.12
(c) Wear track width (d) Wear track width
1.0 Average friction coefficient 0.16 0.8 Average friction coefficient 0.10
Wear track width/mm 0.6 0.12 Average friction coefficient Wear track width/mm 0.6 0.08 Average friction coefficient
0.8
0.08
0.4
0.4
0.06
0.2
0.0
0.00
0.0 0.04 0.2 0.04
0.0 0.04 0.08 0.12 0.16 0.20 0.24 5 10 15 20
Mass fraction of BP-PDA Load/N
Fig. 4 (a) Friction coefficient curves of oil samples with different additives; (b) Abrasion width and average friction coefficient of
lubricant samples with different additives; (c) Abrasion width and average friction coefficient of BP-PDA at different concentrations;
(d) Abrasion width and average friction coefficient of BP-PDA with a mass fraction of 0.16% BP-PDA at different loads
图 4 (a)不同添加剂油样的典型摩擦系数曲线;(b)不同添加剂润滑油样的磨痕宽度和平均摩擦系数;(c) BP-PDA在不同浓度
下的磨痕宽度和平均摩擦系数;(d)不同载荷下质量分数为0.16% BP-PDA的磨痕宽度和平均摩擦系数
(a) (b) (c)
500 μm 500 μm 500 μm
500 μm 500 μm 500 μm
Fig. 5 SEM micrographs of the wear morphology of the disc and the upper ball: (a) soybean oil + 0.16% PDA; (b) soybean oil +
0.16% BP; (c) soybean oil + 0.16% BP-PDA
图 5 底盘和对偶球的磨损形貌的SEM照片:(a)大豆油+0.16% PDA;(b)大豆油+0.16% BP;(c)大豆油+0.16% BP-PDA
滑油样摩擦试验后的EDS谱图中可以观察到4种元 擦膜成分主要有C、O和少量的N. 由图6(b)可知,BP润
素,其中Fe元素是来自基底的对偶球,摩擦界面的摩 滑油样,摩擦薄膜的元素构成主要有C、O和P组成,黑