| About this Abstract |
| Meeting |
2018 TMS Annual Meeting & Exhibition
|
| Symposium
|
Powder Metallurgy of Light, Reactive and Other Non-ferrous Metals
|
| Presentation Title |
A Novel Approach to Making Metal@titanium Core-shell Powder by Fluidized Bed Chemical Vapor Deposition |
| Author(s) |
Yafeng Yang |
| On-Site Speaker (Planned) |
Yafeng Yang |
| Abstract Scope |
How to obtain the high sintered density and homogeneous microstructure have been the key issues of making high-performance titanium alloys by powder metallurgy technology. The traditional mechanical blending approach of powder mixtures is one of the major reasons to produce these issues. In order to overcome these problems, a novel powder surface manipulation approach was developed to make the special multi-component composite powders with a core-shell structure through the fluidized bed chemical vapor deposition. A series of Fe@Ti, Co@Ti, Ni@Ti, Nd@Ti core-shell powders were produced. After the conventional pressureless sintering of these core-shell powders, a largely enhanced sintered densification was obtained while a homogeneous microstructure was achieved. Correspondingly, the sintered titanium alloys exhibited the superior mechanical properties to those fabricated by traditional blended powder mixtures. This study will give a detailed discussion about the thermodynamic feasibility, processing parameter, the characterization of these core-shell powders and their sintering responses. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |