Effect of Structure on Wear Resistance of Co-, Fe-, and Ni-Base Alloys

[+] Author and Article Information
William L. Silence

Stellite R&D Department, Technology Division, Cabot Corporation, Kokomo, Ind. 46901

J. of Lubrication Tech 100(3), 428-435 (Jul 01, 1978) (8 pages) doi:10.1115/1.3453203 History: Received June 23, 1977; Revised March 17, 1978; Online October 20, 2010


Alloy characteristics that relate directly to wear resistance are much sought after, but elusive. Attempts have been made to correlate wear resistance with mechanical and physical properties, including hardness, but only with limited success. During the course of this investigation, cast, wrought, and hard facing wear alloys were processed using various casting, consolidation and deposition techniques and evaluated using laboratory sand abrasion wear tests, and metal-to-metal (adhesive) wear tests. In general, superior abrasive wear resistance was obtained with those processing conditions that produced microstructures which contained coarse carbide morphologies. No general relationship between hardness and abrasive or adhesive wear was found in this processing study. Little effect of processing, structure or hardness was observed on metal-to-metal wear. Where chemical similarity and common structural condition between the commercial alloys tested allows comment on chemical effects, carbon appeared to be the most effective variable; particularly with abrasive wear where resistance increased with increasing carbon level and volume percent of carbide phases present.

Copyright © 1978 by ASME
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