Near surface microstructures developing under large sliding loads

Sliding wear-induced microstructure evolution of nanocrystalline and coarse-grained AZ91D Mg alloy

“…Heilmann et al investigated the development of deformation substructure and described the detailed orientation information on the worn surface of pure copper [3]. Similar experiments on copper were carried out by Hughes et al [4] under large sliding loads as a function of sliding velocity, where differentiated near surface structures were identified at a sliding velocity of 0.25 mm/s and 25 mm/s, respectively. The experimental evidence illustrated that the sliding velocity affected the recrystallization feature of the subsurface structure.…”

“…The revealing of subsurface structure evolution is quite useful in understanding the friction and wear behavior of crystalline materials. Efforts have been made on the investigation [1][2][3][4][5][6] of microstructure evolution underneath wear surfaces. Heilmann et al investigated the development of deformation substructure and described the detailed orientation information on the worn surface of pure copper [3].…”

Correlation between wear resistance and subsurface recrystallization structure in copper

“…Various names have been given to describe the near-surface, wear-affected regions, such as Beilby layer, transfer layer, fragmented layer, highly-deformed layer, white-etching layer and mechanically mixed materials [13]. Rigney et al [14] and Hughes et al [15] investigated the nearsurface microstructure development in copper under large sliding loads. Panin et al [16] emphasized the potential of physical mesomechanics for understanding the subsurface structure degradation during friction and wear process.…”

Research on the Thickness of the Friction Layer of Ni3Al Matrix Composites with Graphene Nanoplatelets

“…While the common denominator is that the variation of velocity and load results in different tribological properties, which is often caused by the evolution of subsurface micro-/nano-structural transformation observed near the worn surface [20,21]. For clearly understanding the effect of evolution of subsurface micro-/nano-structure on the tribological performance of NB, the worn scars under the working condition of (0.1 m/ s, 2.65 N), (0.8 m/s, 2.65 N), (0.4 m/s, 13.65 N) and Fig.…”