Cavitation and rolling wear in silicon nitride

This source preferred by Mark Hadfield and Zulfiqar Khan

Authors: Karunamurthy, B., Hadfield, M., Vieillard, C., Morales-Espejel, G.E. and Khan, Z.A.

Journal: Ceramics International

Volume: 36

Issue: 4

Pages: 1373-1381

ISSN: 0272-8842

DOI: 10.1016/j.ceramint.2010.02.011

Rolling contact and cavitation testing were integrated in a testing methodology to study their combined effect on silicon nitride rolling elements. This testing methodology is well suited to perform controlled cavitation and rolling contact experiments. Acoustic cavitation method and a rotary tribometer were utilized to achieve this objective. Silicon nitride degradation initiated with the formation of blisters in rolling contact. This blisters underwent cracking in the subsequent testing, thereby allowing the lubricant to squeeze in due to rolling contact. Erosion pits formed and their density increased along with their growth by detaching grains and bridging into adjacent pits. As the erosion severity in the rolling contact increased the material eventually failed in a short period of time with respect to the testing conditions. The effect of cavitation and rolling contact parameters on material damage is detailed in this paper thereby allowing an evaluation of material systems for cavitation-RCF conditions.

This data was imported from Scopus:

Authors: Karunamurthy, B., Hadfield, M., Vieillard, C., Morales-Espejel, G.E. and Khan, Z.

Journal: Ceramics International

Volume: 36

Issue: 4

Pages: 1373-1381

ISSN: 0272-8842

DOI: 10.1016/j.ceramint.2010.02.011

Rolling contact and cavitation testing were integrated in a testing methodology to study their combined effect on silicon nitride rolling elements. This testing methodology is well suited to perform controlled cavitation and rolling contact experiments. Acoustic cavitation method and a rotary tribometer were utilized to achieve this objective. Silicon nitride degradation initiated with the formation of blisters in rolling contact. This blisters underwent cracking in the subsequent testing, thereby allowing the lubricant to squeeze in due to rolling contact. Erosion pits formed and their density increased along with their growth by detaching grains and bridging into adjacent pits. As the erosion severity in the rolling contact increased the material eventually failed in a short period of time with respect to the testing conditions. The effect of cavitation and rolling contact parameters on material damage is detailed in this paper thereby allowing an evaluation of material systems for cavitation-rolling contact fatigue (RCF) conditions. © 2010 Elsevier Ltd and Techna Group S.r.l.

This data was imported from Web of Science (Lite):

Authors: Karunamurthy, B., Hadfield, M., Vieillard, C., Morales-Espejel, G.E. and Khan, Z.

Journal: CERAMICS INTERNATIONAL

Volume: 36

Issue: 4

Pages: 1373-1381

eISSN: 1873-3956

ISSN: 0272-8842

DOI: 10.1016/j.ceramint.2010.02.011

The data on this page was last updated at 05:16 on January 24, 2019.