Tribological investigation on friction and wear behaviour of coatings for hot sheet metal forming

► Zn-Ni friction coefficient is about 0.3 at elevated temperatures. ► Friction coefficient of hot dip Al-Si coating is about 0.4 at elevated temperatures. ► Al-Si wear behaviour is adhesive while hot sheet metal forming. ► Zn-Ni is avoiding massive build-up metallic layers on the die.