Texturing in metals as a result of sliding

Abstract

Sliding friction experiments were conducted with copper, nickel, iron, and cobalt sliding on themselves in air and argon. The resulting wear surfaces were examined with X-ray analysis to determine if surface texturing had occurred as a result of sliding. Results of the investigation indicate that, for the f ace-center ed-cubic metals copper and nickel, a (111) texture develops with the (111) planes tilted 10° in the direction of sliding. The body-center ed-cubic metal iron exhibited a (110) texture with the [ill] direction oriented in the direction of sliding. It also exhibited a 10° tilt in the direction of sliding. The environment influenced the results in that the degree of texture observed in argon was less than that seen in air for iron. No texturing was observed for the close-packed-hexagonal metal cobalt. Recrystallization was observed with copper as a result of sliding. SUMMARYSliding friction experiments were conducted with copper, nickel, iron, and cobalt sliding on themselves. Sliding studies were performed both in air and argon. Surfaces were examined in the wear region after sliding with X-ray analysis to determine if texturing had occurred. Texturing was determined after a varied number of passes of a hemispherical rider over a flat disk surface. The effect of load on texturing was also examined.The results of this investigation indicate that, for face-centered-cubic metals such as copper and nickel, a (111) surface texture develops as a result of sliding with the (111) planes tilted 10° in the direction of sliding. With body-centered-cubic metals such as iron, a (110) surface texture develops with the [ill] crystallographic direction oriented in the direction of sliding. There was also a 10° tilt in the direction of sliding. Under the conditions of this study, texturing was not observed in cobalt. The environment influenced the texturing results for iron but not for copper. In argon, the degree of texturing was not as great as was observed in air for iron. Surface re crystallization was observed for copper as a result of sliding.

Microstructural changes in CoCrFeMnNi under mild tribological load

“…Plotting the depth-dependent grain orientation in inverse pole figures as in Fig. 10 yields that ND directions have to rotate toward ½111 to conform with the texture evolution mentioned in the literature [41,58]. For our experiments however, h001i directions align parallel to ND with decreasing distance to the surface.…”

Microstructural characterisation of subsurface deformation and the degradation of Stellite 6 induced by self-mated sliding contact in a simulated PWR environment

“…5). The alignment of these primary slip systems has previously been reported in pure cobalt [48][49][50] and Stellite type alloys [51][52][53].…”

A novel operando approach to analyze the structural evolution of metallic materials during friction with application of synchrotron radiation

“…The plastic deformation of subsurface layers leads to their strong texturing. As a rule, the planes of easy slip are oriented parallel to the friction surface [25][26][27].…”