Abstract
M40 graphite fibre reinforced Al-17Mg matrix composites with different neodymium (Nd) content (Al-17Mg, Al-17Mg-0.2Nd, Al-17Mg-0.5Nd and Al-17Mg-2Nd) were fabricated by pressure infiltration method. Microstructure of Grf/Al composites was investigated by XRD, SEM, TEM and HRTEM. Effect of Nd on microstructure and mechanical properties of Grf/Al composites were deeply discussed. Al3Mg2 and Al11Nd3 phases followed by segregation of Nd and Mg at carbon-aluminum interface were detected in composites containing Nd. The size and amount of Al4C3 phase were increased with Nd content. Bending strength of Grf/Al composites were decreased sharply from 1463MPa (Grf/Al-17Mg) to 791MPa (Grf/Al-17Mg-2Nd) after the addition of Nd. The increased Nd content decreased the pull-out of single fibre and bundles, which was due to the high interfacial bonding strength with formation of Al4C3, Al3Mg2, Al11Nd3 phases and the transition layer.
| Original language | English |
|---|---|
| Pages (from-to) | 8212-8217 |
| Number of pages | 6 |
| Journal | Materials Science and Engineering: A |
| Volume | 528 |
| Issue number | 28 |
| DOIs | |
| State | Published - 25 Oct 2011 |
| Externally published | Yes |
Keywords
- Composite
- Electron microscopy
- Failure
- Interface
Fingerprint
Dive into the research topics of 'Effect of Nd content on microstructure and mechanical properties of Grf/Al composite'. Together they form a unique fingerprint.Cite this
- APA
- Author
- BIBTEX
- Harvard
- Standard
- RIS
- Vancouver