Özet
Low wear resistance of AZ91 alloy is the main factor limiting its more common use in industrial applications. Therefore, the micro-arc oxidation (MAO) process is mostly applied to the alloy to improve its wear resistance at room temperature (RT). However, the effect of the MAO coating on the wear behavior at elevated temperatures was investigated in limited works. In this study, the MAO process was performed on an AZ91 alloy in single-phase (silicate-containing) and dual-phase (aluminate + phosphate containing) electrolytes, and its wear behavior was investigated at both RT and 200 °C compared to the bare alloy. The results showed that the wear resistance of the alloy could be significantly improved both at RT and 200 °C, and the silicate-based electrolyte provided a better wear resistance at both temperatures. The results also showed that the dominant wear mechanism was oxidation for the bare alloy, and brittle fracture for the MAO-treated alloys.
| Orijinal dil | İngilizce |
|---|---|
| Makale numarası | 071701 |
| Dergi | Journal of Tribology |
| Hacim | 145 |
| Basın numarası | 7 |
| DOI'lar | |
| Yayın durumu | Yayınlandı - Tem 2023 |
Bibliyografik not
Publisher Copyright:© 2023 American Society of Mechanical Engineers (ASME). All rights reserved.
Finansman
The authors greatly acknowledge Dr. Doğ a Bilican from Istanbul Technical University, Department of Metallurgy and Material Engineering for her support during SEM and EDS analyses. The authors also acknowledge the financial support provided by Istanbul Technical University as a part of the ITU Scientific Research Projects with Grant No. 39644.
| Finansörler | Finansör numarası |
|---|---|
| Department of Metallurgy and Material Engineering | |
| International Technological University | 39644 |
| Istanbul Teknik Üniversitesi |