Page 116 - 《摩擦学学报》2020年第4期

526 摩 擦 学 学 报 第 40 卷

100 μm 100 μm

(a) Border between zone II and III (b) Zone III

Fe
Fe
Ni
Mn
Mn
O
C Cr Mn
Si Cr Cr Fe
0 1 2 3 4 5 6 7
Bingding energy/keV
(c) EDS image of zone III

Fig. 10 SEM micrographs and EDS spectrum of zone III in fig.6
图 10 图6中III区SEM照片及EDS图
40 40
Contact edge
Contact edge
30
30
Relative height/um 20 Relative height/um 20

Debris
10
No debris 10 Debris
No debris
0 0
−7 −6 −5 −4 −3 −2 −1 0 1 −3 −2 −1 0
Position along axial direction/mm Position along axial direction/mm
(a) Profile (b) Enlargement

Fig. 11 Profiles with or without wear debris
图 11 有无磨屑的轮廓对比

Contact edge
F y =F 0 cos (2πt)
Load Wheel
F z =F 0 sin (2πt)

y Axle
Fixed surface nodes x
z
(a) Finite element model (b) Mesh refinement for contact rim

Fig. 12 Finite element model and the mesh refinement of contact region
图 12 轮轴结构有限元网格