Synergistic Evolution Law of Surface Work Hardening and Contact Fatigue in Wind Power Bearing Steel Pretreated by Ultrasonic Impact
To address rolling contact fatigue failure in 100CrMnMoSi8-4-6 wind power bearing rollers and the limitation of conventional oilstone finishing, this study applies ultrasonic impact treatment (UIT) at two static loads (500 N and 1000 N), systematically investigating effects on surface integrity. Under laboratory rollin...