Enabling Digital Process Chains Characterization of Next-Generation Press-Hardening Steel (PROSTEEL)

Purpose and goal:

The project has provided increased knowledge about the effect of process parameters during press-hardening on microstructure, properties and wear behavior. Combining QP (quenching and partitioning) with press hardening at the identified times and temperatures provides an optimal combination of strength and ductility. The ductility increased 2-3 times.

A test rig for testing in both air and inert gas has provided an increased understanding of the effect of oxide formation on wear behavior. Gaps in the current simulation chain have been identified. Expected results and effects:

The effect goal was to enable early prediction of final material and component properties during press-hardening. The outcome of the project has been; extended collaboration in the value chain, increased understanding of how properties depend on the process parameters in press-hardening combined with the heat treatment QP (quenching and partitioning) at different times and temperatures.

The modified wear test-rig plus the multi-dimensional property diagrams that have been developed have opened up for new methods for quickly determining material performance. Approach and implementation:

The project´s design and implementation was to gather the expertise of actors in all steps in the process-chain for press-hardening and thereby bridge the various simulation steps in the process chain, through increased knowledge about heat treatment, resulting microstructure and wear behavior. Through close collaboration between academic and industrial partners and a workshop dedicated to making a gap analysis of what is missing in the simulation chain, a foundation could be laid for a proposal for a continuation project in Metallic Materials Springboard 2.