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On the thermo-mechanical events during friction surfacing of high speed steels

By G.M. Bedford, V.I. Vitanov and I.I. Voutchkov


This paper is concerned with the friction surfacing of high-speed steels, BM2, BT15 and ASP30 onto plain carbon steel plate. The events that the matrix and carbides experience as the coating material pass from the coating rod to the substrate, in forming the coating, is described. The coating is observed to harden automatically within a few seconds of being deposited onto the cold substrate. This autohardening is observed to be an inherent feature of the friction surfacing process and the only post-coating heat treatment required is tempering, as with traditionally hardened high-speed steels. The mechanism of autohardening is discussed in terms of the mechtrode/coating/substrate thermal system

Topics: T
Year: 2001
OAI identifier: oai:eprints.soton.ac.uk:23305
Provided by: e-Prints Soton

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