Tribological behavior of superduplex stainless steel against PVD hard coatings on cemented carbide

Superduplex stainless steels (SDSS) are used to manufacture components in the oil and gas extraction industries. Machining of SDSS is difficult due to both built-up edge (BUE) formation on cutting tool surface at relatively low cutting speeds and rapid tool wear at higher cutting speeds caused by high strength and work hardening. Appropriate coating systems on cemented carbide tools (WC-Co) are crucial for adequate process performance, as well …