SUSCROM

FINAL REPLACEMENT OF HEXAVALENT CHROME IN THE AEROSPACE SECTOR

Developing a viable and sustainable alternative to hard chrome, a process that provides excellent surface properties but uses hexavalent chromium, which is allowed until September 2024, is essential for processors and manufacturers of components with high mechanical and tribological requirements.

The SUSCROM project was created as a response to the expiration of the authorization for the use of hexavalent chromium. (Annex XIV of the REACH Regulation).

It is a project that proposes to complete the substitution process. It will consist of improving the performance of electroless nickel processes and developing a chrome plating process using electrolytes containing trivalent chromium.

OBJECTIVES

  • To develop a chromium plating process using an electrolyte that contains trivalent chromium (Cr(III)).
  • Using a strategy that creates multilayers with different properties to improve the performance of electroless nickel (Ni-P).
  • Different architectures are being studied to investigate the combination of Cr and Ni-P coatings.

The project is included in the Program for Aeronautical Technology (PTA). It is funded by the CDTI as part of the Recuperation, Transformation and Resilience Plan of the Ministry of Science and Innovation.

The participants in the project are CHEMPLATE, SURTECH, EGILE and ELHCO.