Effect of rotational sliding velocity on surface friction and wear behavior in Zr-based bulk metallic glass

Tribological behavior of Zr-based bulk metallic glass sliding against polymer, ceramic, and metal materials

“…This indicates that the sliding process introduced little crystalline phases for the BMG. This result is consistent with some former researches [11] which didn't find any deformation-induced surface crystallization. While other researchers detected some extent of crystallization on the BMG surfaces after friction [32e34] because of the high temperature increase during sliding.…”

“…Experiments by Seguet al [10] also showed that the frictional coefficient and wear loss of as-cast BMG were smaller than those of conventional steel. Tao et al [11] reported that Zrbased BMG tested under a dry condition showed a much smaller frictional coefficient of 0.15e0.35 than other metals. However, contradictory results were presented in other studies.…”

Effects of environment on the sliding tribological behaviors of Zr-based bulk metallic glass

“…The frictional heating that occurs during the sliding process, can produce both oxidation and crystallization in a BMG if the temperature rise is sufficiently high, and in some cases, obvious molten characteristics have been observed in the wear tracks [27]. According to the model described by Lim and Ashby [28], the theoretical average temperatures and flash temperature present at the sliding surface in the wear tests arising from frictional heating can be calculated by Eqs.…”

“…Recent studies showed different crystallization behaviors of BMGs during wear tests. For instance, some reports indicated that there was no crystallization in the friction surface of BMGs [5,27], while others showed crystallization [6,11]. On one hand, crystallization may occur when the contact temperature presenting on the friction surface exceeds the onset crystallization temperature of the glassy pin during sliding; On the other hand, nanocrystallization can also be induced by plastic flow during deformation of BMGs [32,33].…”

Tribological behaviors of Zr-based bulk metallic glass versus Zr-based bulk metallic glass under relative heavy loads

“…In the past two decades, the tribological behaviors of some BMGs have been studied by several research groups. For instance, Parlar et al [30] and Tao et al [31] focused on the effects of the experimental parameters on their friction and wear characteristics. The results showed that the coefficient of friction (COF) and wear rate increased with sliding velocity.…”