Dry Sliding Wear Behavior of Ti-6Al-4V Pin Against SS316L Disk at Constant Contact Pressure

Abstract

Ti-6Al-4V pins were slid against SS316L disks in pin-on-disk arrangement using pins of different diameters; with the contact pressure maintained the same for all experiments under ambient and vacuum conditions. Characterization of the tribological samples was performed using scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDAX), and X-ray diffraction (XRD). The tribological behavior was found to be governed by strain rate response (SRR), tribo-oxidation (TO), formation of a mechanically mixed layer (MML), and frictional heating which can affect each of the above factors. For a particular set of experiments (ambient/vacuum), variation of wear-rate with respect to sliding speed were found to follow the heat flux in each set. Propensity of this material to undergo softening due to frictional heating and strain rate effects is reflected in the tribological response.

Study on Changes in Hardness and Wear Resistance of 3D Printed Ti6Al4V with Heat Treatment Temperature

“…Abrasive lines found on the wear tracks of all the printed/heat treated specimens are attributed to abrasive wear that results from the repeated sliding of the 100Cr6 steel balls [6,12,18,19] , c and d) have an additional O peak, which is not detectable on the untested area (Fig. 6a), as a result of a dry-slidinginduced oxidation process [12,14,[20][21][22]. In Figs.…”

“…5f.The EDX spectra of the printed Ti6Al4V specimens shown in Figs.6a-dare mainly composed of Ti, Al, and V peaks[6,10,12]. The EDX spectra detected on the wear tracks (Figs.6b, c and d) have an additional O peak, which is not detectable on the untested area (Fig.6a), as a result of a dry-slidinginduced oxidation process[12,14,[20][21][22].…”

Tribo-behavioural transition of Ti6Al4V as a function of sliding velocity and load under dry sliding conditions

“…Moreover, the size of the pin also plays a significant role in controlling the particulates, as for larger pins (size > d/∅ = 0.004 m) the area of contact is higher. Therefore, it can aid in achieving a prolonged retention time for the particulates [21].…”

Monitoring of EDM parameters to develop tribo-adaptive Ti6Al4V surfaces through accretion of alloyed matrix

“…Hence, the subsurface zones will undergo plastic deformation and the abrasive debris particles (generally hard in nature) will favor micro-cutting and ploughing, leading to the formation of furrows and grooves [Figure 6(a)]. Raj et al (2017) suggested that the BTi64 alloy demonstrates the lowest wear behavior at a sliding speed of 0.5 ms À1 because of the formation of surface oxides (especially TiO). However, with further increment in sliding speed (above 0.5 ms À1 , inclusive of 0.838 ms À1 as in the present case), the MML formed becomes highly unstable.…”

“…Among them, the Ti6Al4V (Ti64, a-b alloy, Grade V) with its unique features gradually became the immensely used material. Nonetheless, the indigenously poor tribological characteristics of the alloy delimit its applicability in mechanisms involving surface to counter-body interactions (Raj et al, 2017). Although so, the material has received superior consideration for implementation in applications requiring high dynamic wear resistance (Blau et al, 2007).…”