Effect of Dual-stage Ageing and RRA Treatment  on the Three-body Abrasive Wear of the AW7075 Alloy

Marzena Lachowicz; Tadeusz Leśniewski; Maciej Lachowicz

doi:10.5545/sv-jme.2022.142

Effect of Dual-stage Ageing and RRA Treatment on the Three-body Abrasive Wear of the AW7075 Alloy

Authors

Marzena Lachowicz Wroclaw University of Science and Technology, Faculty of Mechanical Engineering, Poland
Tadeusz Leśniewski Wroclaw University of Science and Technology, Faculty of Mechanical Engineering, Poland
Maciej Lachowicz Wroclaw University of Science and Technology, Faculty of Mechanical Engineering, Poland

DOI:

https://doi.org/10.5545/sv-jme.2022.142

Keywords:

aluminum alloys, AW7075, abrasive wear, heat treatment, hardness, microstructure

Abstract

The paper presents an analysis of the influence of the heat treatment state on the abrasive wear of the AW7075 aluminium alloy. To determine the hardening state, the material hardness was measured. It was found that hardness is not the only factor that influences this type of wear. For this reason, the influence of the emerging microstructure is also analysed in the considerations. After tribological tests, microscopic observations of surface features were carried out to determine the dominant mechanisms of surface damage. The results were extended by the hardness distribution carried out on the cross-section. There were no changes in hardness that could be related to either strain hardening or structural changes caused by friction.

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Published

2022-08-15

How to Cite

Lachowicz, M., Leśniewski, T., & Lachowicz, M. (2022). Effect of Dual-stage Ageing and RRA Treatment on the Three-body Abrasive Wear of the AW7075 Alloy. Strojniški Vestnik - Journal of Mechanical Engineering, 68(7-8), 493–505. https://doi.org/10.5545/sv-jme.2022.142