1. Asco-Industries Research Center CREAS, BP 70045, 57301 Hagondange, FR (Corresponding author), e-mail: simon.catteau@ascometal.com
2. Asco-Industries Research Center CREAS, BP 70045, 57301 Hagondange, FR, e-mails: thomas.sourmail@ascometal.com; anthony.moine@ascometal.com