PVD coatings of cermet inserts for milling applications

D’Errico, Giampaolo E.; Chiara, R.; Guglielmi, E.

doi:10.1016/s0257-8972(96)03060-5

Cited by 13 publications

(1 citation statement)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Besides, several CVD and PVD coatings are deposited onto hardmetals as films with total thickness around 4-20 μm e.g. [40][41][42], which provide excellent wear resistance in spite of their rather limited thickness.…”

Section: Sample Microstructure Before Corrosion Testsmentioning

confidence: 99%

Influence of binder metal and surface treatment on the corrosion resistance of (W,Ti)C-based hardmetals

Barbatti

Sket

García³

et al. 2006

Surface and Coatings Technology

View full text Add to dashboard Cite

The effect of a nitridation surface treatment on the microstructure and corrosion resistance of Co and Ni-binder (W,Ti)C-based hardmetals with additions of (Ta,Nb)C was investigated. Nitridation treatment produces a surface layer with a higher hard phase (Ti,Ta,Nb,W)(C,N) content. The near-surface layer thickness and microstructure are affected by the choice of binder (Co respectively Ni). The corrosion resistance of the hardmetals was characterized using linear sweep voltammetry. The microstructure of the hardmetals was determined before and after corrosive attack by optical microscopy and SEM. The results of the corrosion tests and microstructure analyses are interpreted in terms of the correlation between the hardmetal morphology and porosity and ion transport through the interface binder-electrolyte. The nitridation treatment of the hardmetals strongly increases the resistance to aggressive corrosion media for hardmetals both with Co and Ni-binder phase and thus may positively influence the hardmetal lifetime in cutting applications in chemically aggressive environments.

show abstract

Section: Sample Microstructure Before Corrosion Testsmentioning

confidence: 99%