Compacted oxide layer glaze describes the often shiny, wear-protective layer of oxide formed when two metals (or a metal and ceramic) are slid against each other at high temperature in an oxygen-containing atmosphere. The layer forms on either or both the surfaces in contact and can protect against wear.
References
I.A. Inman. 2003. Compacted oxide layer formation under conditions of limited debris retention at the wear interface during high temperature sliding wear of superalloys. Ph.D. dissertation, Northumbria University. ISBN1-58112-321-3 (previewArchived 2007-09-29 at the Wayback Machine)