Tribological behavior of duplex-coating on Vanadis 10 cold work tool steel

Tribological behavior of duplex-coating on Vanadis 10 cold work tool steel

Powder metallurgy Vanadis 10 has an extensive range of applications as dies for extrusion and cold drawing. The tool surface is exposed to different requests (mechanical, chemical and tribological) and demands surface treatments to prolong its life. Few studies investigate the surface modification t...

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Bibliographic Details
Published in:Wear Vol. 442-443; p. 203133
Main Authors: Zappelino, B.F., de Almeida, E.A. dos S., Krelling, A.P., da Costa, C.E., Fontana, L.C., Milan, J.C.G.
Format: Journal Article
Language:English
Published: Amsterdam Elsevier B.V 15-02-2020
Elsevier Science Ltd
Subjects:
Cold drawing
Cold extrusion
Cold work tool steels
Cracks
Cryogenic engineering
Cryogenic treatment
Die drawing
Diffusion treatments
Duplex stainless steels
Extrusion dies
Frictional wear
Hardness
High resistance
Ion nitriding
Multilayers
Nitrogen plasma
Organic chemistry
Plasma
Powder metallurgy
PVD coatings
Sliding friction
Sliding wear
Substrates
Titanium carbonitride
Tool steel
Tribology
Vanadis 10
Wear resistance
PVD coatings
Sliding wear
Tool steel
Diffusion treatments
Vanadis 10
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Summary:Powder metallurgy Vanadis 10 has an extensive range of applications as dies for extrusion and cold drawing. The tool surface is exposed to different requests (mechanical, chemical and tribological) and demands surface treatments to prolong its life. Few studies investigate the surface modification to optimize the tribological behavior of Vanadis 10. In this study, the combination of cryogenic treatment, two conditions of pulsed plasma nitriding and multilayer TiCN/AlTiN/CrAlTiN/CrN film deposition were evaluated. Pin-on-disc sliding tests were carried out at 0.1 m/s sliding speed, applied load of 10 N and sliding distance of 1000 m. The average hardness of all experimental conditions with multilayer film (2000 HV0.1) was approximately 2 times greater than the hardness of sub-zero treated Vanadis 10 (964 HV0.1). Plasma nitriding promoted the formation of Fe3N-ε compound layer in both experimental conditions. Cracks were observed in this layer. Duplex treatment does not guarantee satisfactory substrate-coating adhesion, because it depends on plasma nitriding conditions. Cryogenic treatment samples followed by plasma nitriding at 5% N2, 75% H2 and 20% Ar, presented higher dry sliding wear resistance in all tested conditions. This treatment is recommended for applications where Vanadis 10 requires high resistance to dry sliding wear. •Duplex treatment was applied to Vanadis 10.•Duplex treatment increased the Vanadis 10 hardness more than twice.•Subzero treatment + plasma nitriding resulted in high wear resistance.•QT + Nit5% is recommended in order to achieve high resistance to dry sliding wear.
ISSN:0043-1648
1873-2577
DOI:10.1016/j.wear.2019.203133