| About this Abstract |
| Meeting |
MS&T23: Materials Science & Technology
|
| Symposium
|
Recent Developments in Light-Weight Composites and Materials
|
| Presentation Title |
High Strength Light-weight Al Matrix Composites Reinforced with Al-Cu-Fe Quasicrystal |
| Author(s) |
Yagnesh Shadangi, Nilay Krishna Mukhopadhyay |
| On-Site Speaker (Planned) |
Nilay Krishna Mukhopadhyay |
| Abstract Scope |
The surge for light-weight materials has led to design and development of Al matrix composites with aperiodic and periodic intermetallics. The AMCs reinforced with quasicrystal (QC) has gained impetuous in recent times. The present work deals with the fabrication and characterization of AMCs with Al-Cu-Fe QC by mechanical milling followed by SPS. The structural transformation of QC reinforcement to crystalline phases (B2-type and Al13Fe4) during sintering of these AMCs was observed. AMCs SPSed at 550 ℃ has appreciable compressive yield strength and ultimate strength ~ 519 MPa and 639 MPa respectively, with Young’s modulus of 134 GPa. The SPS of milled powder was also carried out at high pressure (~500 MPa) but moderate temperature to avoid the formation of crystalline phasesy. The present study reveals the microstructural evolutions, the formation of transition layers at the interfaces and consequent strengthening of the present AMCs in comparison with conventional AMCs. |