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568 摩擦学学报(中英文) 第 45 卷
(a) 0 kJ (b) 5 kJ (c) 10 kJ
Area 2
Area 3
Area 1
Area 4
300 μm 300 μm 300 μm
(d) Area 1 (e) (f) Area 2 (g) (h) Area 3 (i)
50 μm 50 μm 50 μm 50 μm 50 μm 50 μm
(j) 15 kJ (k) 20 kJ (l) 25 kJ
Area 5 Area 7
Area 6
300 μm 300 μm 300 μm
(m) Area 4 (n) (o) Area 5 (p) (q) Area 6 (r) Area 7
50 μm 50 μm 50 μm 50 μm 50 μm 50 μm
Fig. 14 SEM micrographs of the wear morphology of the pin under different cumulative energies: (a) initial wear morphology;
(b) and (c) wear morphology after 5 kJ and 1 kJ energy dissipation; (d) and (e), (f) and (g), (h) and (i) wear morphologies of
area 1, 2 and 3 before and after 5 kJ energy dissipation; (j), (k) and (l) wear morphologies after 15 kJ, 20 kJ and
25 kJ energy dissipation; (m) and (n), (o) and (p) wear morphologies before and after energy dissipation
in area 4 and 55 kJ; (q) and (r) enlarged images of area 6 and 7
图 14 不同累计能量下销的磨损形貌的SEM照片:(a)初始磨损形貌;(b)和(c) 5 kJ和1 kJ能量耗散后的磨损形貌;(d)和(e)、
(f)和(g)、(h)和(i)区域1、区域2和区域3的5 kJ能量耗散前后的磨损形貌;(j)、(k)和(l) 15 kJ、20 kJ和25 kJ能量耗散后的
磨损形貌;(m)和(n)、(o)和(p)区域4和区域55 kJ能量耗散前后的磨损形貌;(q)和(r)区域6、区域7的放大图
表 4 不同循环次数下的磨损 7
Table 4 The wear under different cycles
6
3
Cycle number Mass loss/mg Wear height/μm Friction dissipation/(cm /MJ) 5
10 252 926 0.093
14 330 1 210 0.114 4
20 592 2 174 0.140 Total wear height/mm 3
40 914 3 357 0.108 2 Equation y = a + b × x
Intercept
213.25 ± 402.652 5
50 1 040 3 817 0.101 Slope 82.223 54 ± 8.758 05
60 1 672 6 142 0.132 1 Pearson′s r 0.972 79
R square (COD) 0.946 32
80 1 742 6 396 0.106
0
0 10 20 30 40 50 60 70 80 90
Total number of cycles
外,为了详细表征闸片中各组元的损伤机制,开展了
Fig. 15 Fitting of correlation between pin wear height and
半原位磨损试验. 本文中结论具体如下: number of cycle tests
a. 销-环摩擦副在不同循环试验次数下的平均摩 图 15 销磨损高度与循环试验次数之间的相关性拟合