On the fretting fatigue behavior of quenched and tempered steel in smooth point contact

Authors

• A Pasanen
• A Lehtovaara
• R Rabb
• P Riihimäki

Keywords:

fretting fatigue, fretting map, partial, mixed and gross slip, crack initiation

Abstract

Fretting fatigue can lead to a rapid decrease in the life of machine components when their contact surfaces have to transfer high tractions. Fretting fatigue was studied in partial, mixed and gross slip conditions made on quenched and tempered steel 34CrNiMo6. Measurements were made with sphere-on-plane contact geometry for smooth surfaces to detect macroscopic cracks. The fretting map type test series outlined a certain zone in partial and mixed slip conditions, where cracking occurred. The parameters affecting cracking threshold values and crack initiation are discussed.