Abstract
Fe-MoNiAl-Al2O3powders were mechanically alloyed by a SPEX type attritor. The Fe based composite samples were reinforced with complex mechanically alloyed Fe-MoNiAl- Al2O3particles in different ratios and Fe matrix composites were obtained. Scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), elemental surface mapping and microhardness tests were used to analyze the microstructures of the composites. The sintered composites showed that thin Al2O3particles were dispersed. High volume fractions of the reinforcement having nanometer dimensions were produced in metallic matrices. Additionally, as the content of Al2O3increased, the microhardness increased, which indicates that fine Al2O3particles had a reinforcing effect.
| Original language | English |
|---|---|
| Pages (from-to) | 368-372 |
| Number of pages | 5 |
| Journal | Materialpruefung/Materials Testing |
| Volume | 63 |
| Issue number | 4 |
| State | Published - 2021 |
Funding
This work was financially supported by the Kayalar Copper group. The authors are grateful to Kayalar Copper Industry and Trade Incorporated Company for their financial assistance in conducting the experiments.
Keywords
- AlO
- Composite materials
- Hardness
- Mechanical alloying
- Monial