Sliding behavior of metallic glass

Tribological Studies of a Zr‐Based Glass‐Forming Alloy with Different States

“…As we know, the presence of the oxide layer inhibits the glass-pin contact, which may lubricate the wear process of the materials. Fu et al [24] reported that for a given load, sliding in air gave a lower friction coefficient and lower fluctuation amplitude, compared with sliding in vacuum for BMGs. This trend may be due to the role of oxidation occurring in the process of sliding.…”

Enhanced Wear Resistance of Zr-Based Bulk Metallic Glass by Thermal Oxidation Treatment

“…This result indicate that surface oxidation happened during the sliding, however, the oxidized scale formed during the sliding process is inhomogeneous. Surface oxidation also took place in some other studies for Zr-based BMGs under dry-sliding tests 4,8,14) , which may be caused by the high ash temperature generated on the friction surface 11,14) . In Fig.…”

“…The tribological behavior of Zr-based BMGs has been studied extensively [3][4][5][6][7][8][9][10][11][12][13][14] , however, the results in different works are controversial. In some cases, Zr-based BMGs show high wear resistance, better than their crystallized counterparts and some conventional engineering alloy such as GCr15 steel 5,7) , while in some other cases they exhibit no indication of superior tribological properties or even worse wear resistance than commonly used engineering materials like Al6061, 304 SS, 316 L SS and CoCrMo alloy 3,4,9,12) . It has been reported that the tribological performance of Ti-6Al-4V could be improved by thermal oxidizing treatment 15,16) , however, to the best of our knowledge, there has been no research about the effect of oxidation on the tribological behavior of BMGs.…”

Sliding Tribological Characteristics of a Zr-based Bulk Metallic Glass Near the Glass Transition Temperature

“…Blau [8] reported no transformation evidence on the worn surface. On the contrary, Fu et al [9] showed that not only crystallization occurred on BMG during tribological contact but also crystalline BMGs were re-amorphized. There were also reports indicating that the wear performance of metallic glasses was inferior to the annealed state [10] and traditional crystalline alloys [8].…”

“…There were also reports indicating that the wear performance of metallic glasses was inferior to the annealed state [10] and traditional crystalline alloys [8]. Values varying between 0.1 and 0.9 have been reported for the friction coefficient, and the wear resistance was found to be either higher or equivalent to those of conventional engineering materials [8][9][10][11][12][13]. Some characteristics were common among different studies.…”