Effect of fretting damage on characteristics of high strength bearing steel up to very high cycle fatigue. (August 2019)

• Record Type: Journal Article
• Authors: Huang, Zhiyong; Zhang, Zhen; Teng, Zhenjie; Khan, Muhammad Kashif; Wang, Qingyuan; Wang, Jingyu
• Is Part Of: Engineering fracture mechanics. Volume 217(2019)
• Publication Date: 2019-08
• Subjects: Fretting fatigue -- Very high cycle fatigue -- Fretting contact load -- Wear concave area -- Stress concentration; Fracture mechanics -- Periodicals; Rupture, Mécanique de la -- Périodiques; Fracture mechanics; Periodicals; 620.112605
• DOI: 10.1016/j.engfracmech.2019.106526
• Languages: English
• ISSNs: 0013-7944

Abstract

Highlights: Fretting fatigue behavior of bearing steel is investigated up to VHCF cycles. Fretting fatigue strength reduction is higher in VHCF regime. Fretting fatigue life in VHCF regime depends on the fretting damage size growth. Higher fretting fatigue life can be achieved with lower wear rate and harder surface. Abstract: The fretting fatigue behaviour of SAE 52100 bearing steel has been investigated up to very high fatigue cycles. The fretting fatigue strength was found to be markedly lower than the plain fatigue strength of the alloy. The fatigue strength reduction is higher in very high cycle fatigue regime which varies with fretting contact load. The fretting fatigue life is restricted in high cycle fatigue regime when the contact load is higher than the critical one. The rate of fretting damage growth influences the fretting fatigue life in very high cycle fatigue regime. The specimens with lower surface wear rate acquire higher fretting fatigue life by impeding the increase of fretting damage size.