| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Powder Materials Processing and Fundamental Understanding
|
| Presentation Title |
Progress on Thermal Sprayed Ultrahard Coatings for Preventing Adhesive Wear of Stamping Die Surfaces |
| Author(s) |
Iver E. Anderson, Jordan Tiarks, Rameshwari Naorem, Andrew Kustas, Yun Bai, Bill Lenling, Emma White, Nicolas Argibay |
| On-Site Speaker (Planned) |
Jordan Tiarks |
| Abstract Scope |
Greater manufacturing efficiency for lightweight automotive panels, especially for aluminum alloy sheet, could be achieved if compatible sheet metal stamping die surfaces were developed. Lighter vehicles using these body panels with battery/electric drive could achieve far greater driving range without adding expensive battery cells, most notably. To achieve wear resistant die coatings, gas atomized powders of an ultrahard (~8-10 GPa) refractory high-entropy alloy (RHEAs) developed by AMES and SNL-NM are being thermal spray deposited using HVOF (high velocity oxy-fuel) with an O2/H2 gun. One reason that this RHEA seems ideal for this application is that the emblematic “Kustalloy” composition has 42 at.% Al and may be protected by a renewable alumina scale to minimize the need for die lubricants. These collaborations with Ford utilize relevant tool steel die insert specimens and will report results of microstructure, hardness, wear, and forming tests. Support from USDOE-EERE-AMMTO through Ames Laboratory Contract No. DE-AC02-07CH11358. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Entropy Alloys, Surface Modification and Coatings, Powder Materials |