About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Advanced Functional and Structural Thin Films and Coatings & Honorary Palkowski Session
|
Presentation Title |
Reduction of Friction and Adhesion in Copper and Brass Extrusion by Application of Boron Containing Surface Modifications |
Author(s) |
Stefan Lechner, Alexander Thewes, Soeren Mueller |
On-Site Speaker (Planned) |
Stefan Lechner |
Abstract Scope |
Due to extensive abrasion and adhesion, tools for copper and brass extrusion are subject to considerable wear. In the present study, the effect of boron containing surface modifications on friction and adhesion was investigated by means of a high temperature, high speed friction test for extrusion. A Ti-Si-B-C-N nanocomposite coating and a boridic diffusion layer were applied to hot work tool steel 1.2367 and nickel-based alloy 2.4668, respectively. Using billets made of copper alloy CW024A and brass alloy CW724R, the friction tests were performed at high temperatures and normal pressures typical of the extrusion process. The evaluation of the obtained test data indicates a significant influence of the Ti-Si-B-C-N nanocomposite coating on the friction and adhesion behavior of the investigated material pairings. While friction and adhesion are greatly reduced for the Ti-Si-B-C-N coating, the effect of the boridic diffusion layer is substantially less. |
Proceedings Inclusion? |
Planned: |
Keywords |
Surface Modification and Coatings, Other, Other |