Fig 1.
Sampling process of cortical bone sample.
Table 1.
Dimension parameters of the experimental specimens.
Fig 2.
Picture of titanium alloy specimen.
Fig 3.
Internal force diagram of femoral stem of artificial hip joint.
F: Compression load Fj: Contact load f: Fiction force.
Fig 4.
Schematic diagram of internal force on femoral stem of artificial hip joint.
F: Compression load; Fj: Contact load; f: Fiction force.
Fig 5.
Friction and wear test device.
1: Friction head of bone 2: Pressure sensor 3: Ti-6Al-4V titanium alloy plate 4: Electronic testing machine 5: Sliding module 6: Linear actuator 7: Intelligent display 8: Drive motor for sliding module 9: Control box of linear actuator.
Table 2.
Relevant parameters and functions of the experimental module.
Table 3.
Experimental parameters of friction and wear under different compression loads.
Table 4.
Experimental parameters of friction and wear under different contact loads.
Table 5.
Experimental parameters of friction and wear under different friction rates.
Table 6.
Experimental parameters of friction and wear under different lubrication environments.
Fig 6.
Effect of different experimental variables on average friction coefficient.
(a) Different compression loads (b) Different contact loads (c) Different friction rates (d) Different lubrication environments.
Table 7.
Average wear mass and average wear factor under different experimental variables.
Fig 7.
Effect of different experimental variables on surface morphology of Ti-6Al-4V titanium alloy plate.
(A1) is the sample photo with test group No. A1 (A2) is the sample photo with test group No. A2 (A3) is the sample photo with test group No. A3 (B1) is the sample photo with test group No. B1 (B2) is the sample photo with test group No. B2 (C1) is the sample photo with test group No. C1 (C2) is the sample photo with test group No. C2 (D1) is the sample photo with test group No. D1 (D2) is the sample photo with test group No. D2.
Fig 8.
Influence of different factors on wear mass.
(a) Different compression loads (b) Different contact loads (c) Different friction rates (d) Different lubrication environments.
Fig 9.
Effect of different factors on wear coefficient.
(a) Different compression loads (b) Different contact loads (c) Different friction rates (d) Different lubrication environments.