Evidence of Superposition between Grooving Abrasion and Rolling Abrasion

Abstract

In ball-cratering wear tests, two abrasive wear modes are commonly observed, grooving abrasion and rolling abrasion, which act in distinct areas. Observing this tendency, the aim of this article is to discuss the characterization of an intermediate condition, in which the superposition of the grooving and the rolling abrasive wear modes is observed. This phenomenon is referred to as microrolling abrasion due to the following particular characteristic: the rolling abrasion was found to act on the grooving abrasion. Additionally, in a defined sliding distance range and normal force range, microrolling abrasion is qualitatively observed to be proportional to the sliding distance and inversely proportional to the normal force.

KEY WORDS:

• Abrasive Wear
• Wear Mechanisms
• Grooving Abrasion
• Rolling Abrasion

ACKNOWLEDGEMENTS

The authors gratefully acknowledge Professor Ana Helena de Almeida Bressiani, from the Nuclear and Energetic Researches Institute, for the abrasive particle size distribution analysis and Paulo Zanini, Rafael Rozolen, and Vitor Benkard Lira, from Rexroth Bosch Group, for the help in the startup of the servo-motors and servo-controllers.