Page 121 - 《摩擦学学报》2021年第6期

906 摩 擦 学 学 报 第 41 卷

(a1) (b1)

Rolling direction Rolling direction

20 μm 20 μm

(a1) Original P+PF (b1) Original TS

(a2) (b2)

Rolling direction Peeling Rolling direction Peeling

30 μm 30 μm

5
5
(a2) Fatigue test 1×10 cycles of P+PF (b2) Fatigue test 1×10 cycles of TS
(a3) (b3)

Rolling direction Rolling direction Spalling tip crack

Crack

30 μm 30 μm

5
(a3) Fatigue test 3×10 cycles of P+PF (b3) Fatigue test 3×10 cycles of TS
5
(a4) (b4)

Rolling direction Fatigue wear crack Rolling direction

20 μm 20 μm

5
5
(a4) Pre-wear 1×10 cycles of P+PF (b4) Pre-wear 1×10 cycles of TS

Fig. 5 Surface morphology of two samples after working for different cycles
图 5 两种试样运行不同周次的表面形貌