Hydrogen Embrittlement&Corrosion Resistant Coatings for Ultra High Strength Automotive Steels-HyCoat
| Reference number | |
| Coordinator | SWERIM AB |
| Funding from Vinnova | SEK 793 000 |
| Project duration | October 2024 - June 2025 |
| Status | Ongoing |
| Venture | Impact Innovation Metals & Minerals - Program-specific efforts Vinnova |
| Call | Impact Innovation: Feasibility studies within Technological Action Areas in the program Metals & Minerals |
Purpose and goal
The project aims to develop new corrosion protective coatings for UHSS and generate a proposal for a full-scale project. The goals are: • Evaluate PVD as deposition method of Al based corrosion protective coatings with improved resistance to HE for UHSS • Develop effective PVD deposited Al based corrosion protective and HE resistant coatings for UHSS • Compare the corrosion properties and HE sensitivity of UHSS with PVD and EG deposited coatings • Generate proposal for full-scale project
Expected effects and result
The expected result from this project is to increase the knowledge if PVD technology successfully can be used to deposit Al-X corrosion resistant coatings on ultra-high strength steels-UHSS. Since UHSS are susceptible to hydrogen embrittlement (HE) it is expected by use of PVD deposited Al-X coatings on UHSS the risk of HE to be mitigated. The project has high hopes that PVD deposition of Al-X coatings will promote safe use of 1700 MPa fully martensitic grade in automotive applications.
Planned approach and implementation
The project consists of 6 work packages: WP1 Material delivery WP2 PVD deposition of Al-X coatings on UHSS and their characterisation WP3 Evaluation of corrosion properties of the coatings WP4 Evaluation of hydrogen embrittlement susceptibility WP5 Comparison of results and generation of a plan/proposal draft for full-scale project WP6 Project management, reporting and dissemination