Page 55 - 《摩擦学学报》2021年第2期

200 摩 擦 学 学 报 第 41 卷

1.4 1.4
(a) 25 ℃ (b) 800 ℃
1.2 1.2
Friction coefficient 1.0 Friction coefficient 1.0
0.8
0.8
0.6
0.6
0.4
0.2 0.4
0.2
0.0 0.0
0 5 10 15 20 25 30 0 5 10 15 20 25 30
Time/min Time/min
1.4 1.4
(c) 25 ℃ (d) 800 ℃
1.2 1.2
Friction coefficient 1.0 Friction coefficient 1.0

0.8
0.8
0.6
0.6
0.4
0.2 0.4
0.2
0.0 0.0
0 5 10 15 20 25 30 0 5 10 15 20 25 30
Time/min Time/min

Fig. 3 Typical friction coefficient curves of NbTaWMo (a and b) and NbTaWMoSi 0.25 (c and d) refractory
high entropy alloy at 25 ℃ and 800 ℃
图 3 NbTaWMo(a和b)和NbTaWMoSi 0.25 (c和d)难熔高熵合金在25 ℃和800 ℃典型的摩擦系数曲线

25
(a) (b)
30
20
25
15 μm 33.8 2 20
μm 25.3 2 μm 0
0 15
10 1 1 μm
1.16 1 mm 10
mm 5 mm 0.5 0.5 mm
0 0 5
0 0
0 0

(c) (d) 20
1.2
1.0
15
μm 1.36 2 0.8 μm 21.7 2
0 0 10 μm
0.6 μm
1 1 1 1
mm 0.4 mm
0.5 0.5 0.5 0.5 5
mm mm
0.2
0 0 0 0
0.0 0

Fig. 4 3D profiling images of worn surfaces of NbTaWMo (a and b) and NbTaWMoSi 0.25 (c and d) refractory
high entropy alloys at 25 ℃ and 800 ℃
图 4 NbTaWMo(a和b)和NbTaWMoSi 0.25 (c和d)难熔高熵合金在25和800 ℃磨痕的三维形貌图