2014 - 2018
The prohibition of chromium VI salts from September 2017 as part of the REACH European regulation impacts numerous surface treatment processes. It is particularly the case of the hard chrome-plating process which represents several thousands of jobs in Europe.
The HCTH project (Hard Chrome by Trivalent Chrome), started in 2014 at the IRT-M2P, aims to develop an alternative to the hard chrome-plating using a trivalent chromium solution. With a consortium of 17 partners, the work carried out until today, with the electrolyte developed by the Coventya company, is promising. The maturity of the trivalent chromium solution is at the TRL3 level. Further work should allow us to reaching the next milestones and a TRL6 at the end of the project, expected in February 2018.
In this project, UT2A uses its analytical skills to develop methods allowing characterization of the trivalent chromium and its complexes in solution to optimize the process and monitor the evolution of the bath over time.