| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Melt Processing, Casting and Recycling
|
| Presentation Title |
Investigating the Castability of Recycling AZ91 Machining Chips Through Shape Casting |
| Author(s) |
Xinyi Hao, Zhuocheng Xu, Christopher Gourlay, Qianqian Li |
| On-Site Speaker (Planned) |
Qianqian Li |
| Abstract Scope |
The recycling of magnesium alloy chips (swarf) presents considerable environmental and economic benefits. This study employs a shape-casting method to recycle AZ91/AZ80 magnesium alloy chips, achieving significant grain refinement, compared to using ingots. A comprehensive investigation was conducted on the effects of casting parameters on the grain size of castings produced from chips, including casting temperature, stirring speed, holding time, and cooling rate. The study also compared the grain refinement effects of different types of chips. Tensile tests showed that chip castings exhibit a slightly higher 0.2% proof stress than the castings from ingots, due to the Hall-Petch effect. The results indicate that chips can be recycled using the direct shape casting method, leading to significant grain refinement, while maintaining similar mechanical properties. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Magnesium, Recycling and Secondary Recovery, Shaping and Forming |