Abstract
In this study, ultrafine (0.3 μm) aluminum oxide (Al2O3) particles were dispersed into commercially pure magnesium powder using the sonication method and processed by presssinter-extrusion technique. The oxide particles dispersion in the processed magnesium microstructure was reasonably homogeneous and with good interfacial integrity. The dispersed oxide particles refined the grain morphology. They significantly improved the hardness, yield strength, tensile strength, ductility, and work-of-fracture of magnesium when added to a vol.% of up to 2.5. The dispersed oxide particles also changed the fracture mode of magnesium from brittle to ductile nature. However, the study also revealed that the ultrafine oxide particles dispersion was most effective in improving the overall mechanical properties of magnesium when added in an amount of 0.7 vol.%.
| Original language | English |
|---|---|
| Pages (from-to) | 1-9 |
| Number of pages | 9 |
| Journal | Kovove Materialy |
| Volume | 59 |
| Issue number | 1 |
| DOIs | |
| State | Published - 2021 |
Bibliographical note
Publisher Copyright:© 2021 Institute of Materials and Machine Mechanics, Slovak Academy of Sciences. All rights reserved.
Keywords
- Light alloy
- Mechanical properties
- Microstructure
- Oxide dispersion strengthening
- Sonication
ASJC Scopus subject areas
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry