ROLLING-CONTACT FATIGUE OF SURFACE-DENSIFIED GEARS

摘要

Subsurface-shear-stress profiles and material shear-fatigue-strength profiles are shown to be defining design criteria with regard to RCF in surface-densified-strength model can be utilized to specify the microstructural conditions that are required to provide both pitting-fatigue and sub-case-fatigue durability. Application of these parameters can provide surface-densified PM gears with surface durability that is at least equivalent to that of wrought steel gears.