Page 77 - 《摩擦学学报》2020年第3期

第 3 期 曲铭海, 等: 脲基功能化的咪唑无卤素离子液体对复合锂基润滑脂摩擦学性能的影响 343

0.7 2.0
(a) 0% (b) 0%
1% DOSS-1-G 1.6 1% DOSS-1-G
Friction coefficient 0.6 1% DOSS-4-G Wear volume×10 3 /mm 3 1.2 1% DOSS-4-G
3% DOSS-1-G
3% DOSS-1-G
5% DOSS-1-G
5% DOSS-1-G
3% DOSS-4-G
3% DOSS-4-G
5% DOSS-4-G
5% DOSS-4-G
0.2
0.8
0.4
0.1
0.0
0 300 600 900 1 200 1 500 1 800
Time/s

Fig. 3 Evolution of the friction coefficient (a) and wear volume (b) of the lower sample steel block at 120 ℃
图 3 润滑脂作为钢/钢摩擦副的润滑剂的摩擦系数曲线(a)和试验结束后下试样钢块的磨损量图(b)
z/μm z/μm z/μm z/μm
1.9 5 1.9 3 1.9 1.3 1.9 1.2
4 2 1.0 1.0
1.5 2 1.5 0 1.5 0.5 1.5 0.5
y/mm 1.0 0 −2 y/mm 1.0 −2 y/mm 1.0 0.0 y/mm 1.0 0.0
−0.5
−4 −0.5
0.5 0.5 −4 0.5 −1.0 0.5 −1.0
−6 −1.5
0.0 −8 0.0 −6 0.0 −1.8 0.0 −1.4
0.0 0.5 1.0 1.5 2.0 2.5 0.0 0.5 1.0 1.5 2.0 2.5 0.0 0.5 1.0 1.5 2.0 2.5 0.0 0.5 1.0 1.5 2.0 2.5
x/mm x/mm x/mm x/mm
(a) (b) (c) (d)
z/μm z/μm z/μm
1.9 2 1.9 4.3 1.9 1.3
4.0 1.0
1.5 0 1.5 3.0 1.5 0.5
y/mm 1.0 −2 y/mm 1.0 2.0 y/mm 1.0 0.0
1.0
0.5 −4 0.5 0.0 0.5 −0.5
−1.0 −1.0
0.0 −6 0.0 −1.3 0.0 −1.2
0.0 0.5 1.0 1.5 2.0 2.5 0.0 0.5 1.0 1.5 2.0 2.5 0.0 0.5 1.0 1.5 2.0 2.5
x/mm x/mm x/mm
(e) (f) (g)

Fig. 4 3D morphologies of worn surfaces lubricated by samples of (a) Pure G；(b)1%DOSS-1-G；(c) 3%DOSS-1-G；
(d) 5%DOSS-1-G；(e) 1%DOSS-4-G；(f) 3%DOSS-4-G；and (g) 5%DOSS-4-G
图 4 不同试样润滑后的磨斑三维形貌照片：(a)空白2号复合锂基润滑脂；(b)1%DOSS-1-G；(c) 3%DOSS-1-G；(d) 5%DOSS-1-
G；(e) 1%DOSS-4-G；(f) 3%DOSS-4-G；and (g) 5%DOSS-4-G
(a) (b) (c) (d)

1 mm 1 mm 1 mm 1 mm

(e) (f) (g)

1 mm 1 mm 1 mm

Fig. 5 SEM micrographs of worn surfaces lubricated by samples of (a) Pure G；(b)1%DOSS-1-G；(c) 3%DOSS-1-G；(d) 5%DOSS-
1-G；(e) 1%DOSS-4-G；(f) 3%DOSS-4-G；and (g) 5%DOSS-4-G
图 5 不同试样润滑下的磨斑形貌的SEM照片：(a) 空白2号复合锂基润滑脂；(b)1%DOSS-1-G；(c) 3%DOSS-1-G；(d) 5%DOSS-
1-G；(e) 1%DOSS-4-G；(f) 3%DOSS-4-G；and (g) 5%DOSS-4-G