Safe use of additive manufactured stainless steel products in corrosive environments- AMCO
|Coordinator||Swerim AB - Swerim AB, Kista|
|Funding from Vinnova||SEK 2 289 618|
|Project duration||November 2018 - November 2021|
|Venture||The strategic innovation programme for Metallic material|
Purpose and goal
The market for AM stainless steel products is growing rapidly both in Sweden and globally. The corrosion properties of AM manufactured stainless steel products are still today not well described. The aim of this project is to increase the understanding about the corrosion mechanism and the corrosion performance of AM products in various field service conditions. This knowledge will be used to develop guidelines for prediction of corrosion resistance of AM materials to support end users with the decision-making to introduce AM stainless steel products.
Expected results and effects
The project intends to relate the corrosion behavior of AM materials to the heterogeneous microstructure. The validity of existing corrosion test protocols will be assessed for AM materials to suggest necessary modifications to ensure that the specific nature of AM products is captured in the test procedures. The guidelines developed will be used to compare AM materials with PM-HIP and cast materials to rank the relative corrosion performance. The knowledge can also be used to tailor the AM microstructures to gain better corrosion resistance.
Planned approach and implementation
The materials that will be investigated are austenitic stainless steel 316 and duplex stainless steel 2507. The project is divided into seven WP: WP1. AM microstructures and surface conditions (leader Swerim) WP2. Corrosion mechanisms (leader Swerim) WP3. Corrosion in service (leader SMT) WP4. Guideline for corrosion testing (leader Alfa Laval) WP5. Post-processing influence on corrosion behavior (leader Quintus) WP6. Dissemination (leader Swerim) WP7. Project coordination (leader Swerim)