WIT Press

An Influence Of Microstructure Factors Of Nitrided Layers On The Contact Fatigue Strength Of Gears

Price

Free (open access)

Paper DOI

10.2495/SURF970151

Volume

17

Pages

10

Published

1997

Size

1,296 kb

Author(s)

I. Furbacher, I. Cerny & V. Linhart

Abstract

An experimental investigation of an influence of different composition and microstructure of both thin compound and case layers, obtained as a result of plasma nitriding with different parameters, on contact and bending fatigue properties of a nitriding steel was conducted separately with the aid of contact fatigue tests of gears models and tests of individual teeth in bending. Contact fatigue properties at loads close to fatigue limit did not depend on the type of phases contained in the layer. Values of microhardness of case layers were in a good correlation with the total volume content of particles. Fatigue limit in bending decreased with the higher content of particles, unlike limited fatigue life at loads 10 % above the fati

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