P/M Materials for Gear Applications

摘要

P/M materials for gear applications have been reviewed based on results of own investigationsrnof gear tooth bending strength of simple spur gears and rolling contact fatigue resistance of rollers.rnIt was concluded that surface densified casehardened P/M gears reached gear tooth bendingrnstrength of reference casehardened machined wrought steel gears. Surface densified casehardenedrnP/M rollers reached RCF-resistance of casehardened wrought machined rollers. Surfacerndensification plays the main role in reaching high performance of P/M components. Chromiumrnlow alloyed P/M materials show a promising potential for a high performance/cost ratio.