| About this Abstract |
| Meeting |
MS&T23: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing of Metals: Microstructure, Properties and Alloy Development
|
| Presentation Title |
Hot Deformation Behaviour of TiAlMn Alloys Fabricated Using Laser Engineered Net Shaping (LENS) |
| Author(s) |
Sibusisiwe Motha, Monnamme Tlotleng, Nthabiseng Maledi, Michael Bodunrin |
| On-Site Speaker (Planned) |
Sibusisiwe Motha |
| Abstract Scope |
This works explores the effects of Mn addition to LENS fabricated TiAl alloys on high temperature deformation. Hot deformation mechanisms are studied through characterization methods which include Gleeble testing, Scanning Electron Microscopy, X-ray Diffraction and microhardness testing. The effects of microstructural buckling on dislocation densities and crystal orientation parameters were examined and it was established that higher dislocation densities are favourable for both mechanical strength and ductility, and allows for strain hardening. It was also established that Mn addition to TiAl is not detrimental to high temperature mechanical properties which are essential for aero engine applications. |