Dry-sliding tribological properties of laminated WC/TiC ceramic cutting tool material sliding against 316L austenitic stainless steel

doi:10.16731/j.cnki.1671-3133.2017.09.003

Abstract

Abstract: Laminated WC/TiC ceramic cutting tool material was fabricated by hot-pressing technique at 1 750℃.The tribological behavior of the WC/TiC ceramic cutting tool material sliding against 316L austenitic stainless steel ball under dry sliding condition and the morphologies of worn surfaces were investigated.The results showed that the applied loads and sliding speeds had a great influence on the friction coefficient and wear volume loss of the laminated WC/TiC ceramic cutting tool material.The friction coefficient and wear volume loss of the ceramic cutting tool material increased with an increase of the applied load.With an increase of the sliding speed,the friction coefficient of the ceramic cutting tool material firstly decreased and then increased,but the wear volume loss of the ceramic cutting tool material firstly increased and then decreased.During the process of the ceramic cutting tool material sliding against 316L austenitic stainless steel,the phenomenon of ploughing,spalling of particle and delamination occurred on the surface of the material.The fine grooves,pits,cracks and flakiness of debris were found on the worn surfaces,which indicated that the wear mechanism of the tested specimens was abrasive wear and adhesive wear.

Key words: laminated ceramic, tribological behavior, wear mechanism

CLC Number:

TB332

Zhang Cheng, Song Jinpeng, Liang Guoxing. Dry-sliding tribological properties of laminated WC/TiC ceramic cutting tool material sliding against 316L austenitic stainless steel[J]. Modern Manufacturing Engineering, 2017, 444(9): 13-16.

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