|
|||||
|
|
Wear resistance and anti-sticking properties of duplex treated forming tool steel |
|
| Authors: | B Podgornik S HogmarkO Sandberg V Leskovsek |
| Affiliation: | a The Tribomaterials Group, Uppsala University, Box 534, SE-751 21 Uppsala, Sweden b Uddeholm Tooling AB, SE-683 85 Hagfors, Sweden c Institute of Metals and Technology, Box 431, SI-1001 Ljubljana, Slovenia |
| Abstract: | The aim of this work was to investigate the potential of using hard physical vapour deposition (PVD) coatings on forming tools, as well as to determine the influence of plasma nitriding on the load-carrying capacity and wear resistance of coated tool surfaces. A load-scanning test rig was used for evaluation, where duplex treated cold work tool steel samples were loaded against soft austenitic stainless steel and hardened ball bearing steel, respectively. Four different coatings (TiN, TiB2, TaC and DLC) and two substrate treatments (hardening and plasma nitriding in two different gas mixtures) were included.Plasma nitriding alone significantly improved the friction, wear, and anti-sticking properties of the tool steel. PVD coating, and especially PVD coating of nitrided tool steel further improved the performance. Therefore, from the point of view of tool life as well as work peace surface quality, the DLC coating with its excellent anti-sticking properties and sufficiently good wear resistance represent the best solution for forming tool applications of austenitic stainless steel. |
| Keywords: | Forming tool steel Duplex coatings Wear Adhesion |
| 本文献已被 ScienceDirect 等数据库收录！ | |