The wear mechanisms of industrial titanium alloys are mainly delamination wear and abrasive wear. Under low frequency and low load, Medical titanium material With the increase of load and frequency, under the action of instantaneous flash temperature and load, the wear mechanism of the steel is mainly adhesive wear and delamination wear.

Frequency has a great influence on the friction coefficient and wear resistance of titanium materials. With the acceleration of frequency, the friction coefficient increases, the data jump amplitude increases, and the wear volume increases. The effect of load on friction coefficient is relatively small. With the increase of load, the friction coefficient has a downward convergence trend at the initial stage of friction; At the later stage of friction, the friction coefficient increases significantly, and the relationship between load and wear volume basically shows a linear growth. The wear scar of titanium material presents a "post friction type". With the increase of load and frequency, the wear volume profile shows a trend of deepening and broadening.

The dry friction and wear test of medical titanium materials under the same test conditions shows that the wear volume of industrial titanium alloy materials is about 2.5 times that of medical titanium materials, and the wear resistance of industrial titanium alloy materials is relatively poor. The wear debris of industrial titanium alloy material is fine and granular, and the wear surface is characterized by serious delamination; The wear debris size of TC4 varies. Under low frequency and low load conditions, there are furrow marks on the wear surface and no obvious peeling pits. With the increase of load and frequency, the friction surface layer appears cracks and fragmentation.

Industrial titanium alloy materials and medical titanium materials are very important alloy materials. These two titanium alloy materials use a multi-functional friction and wear tester to conduct reciprocating friction and wear tests, collect the friction coefficient curve, calculate the average friction coefficient, and analyze the friction characteristics of titanium materials from the dynamic and static aspects. The surface hardness of the sample material is measured with an automatic microhardness tester, and the wear resistance is analyzed through the surface hardness. Field emission scanning electron microscope (FESEM) and energy dispersive spectrometer (EDS) were used to observe the micro morphology of the worn surface and wear debris and to analyze the elemental composition metrology. The wear volume and profile were measured by using a laser confocal microscope, and the three-dimensional morphology of the wear surface was observed.

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