Tribological characteristics of duplex treated AISI 4140 steel

Bojan Podgornik, Jose Vizintin, Helena Ronkainen, Kenneth Holmberg

Research output: Chapter in Book/Report/Conference proceedingChapter or book articleScientificpeer-review

Abstract

In the present study samples of AISI 4140 steel pre-treated by plasma nitriding and coated by a hydrogen-free hard carbon film were investigated with respect to microhardness, surface roughness, residual stress, scratch adhesion and dry sliding wear resistance. To examine the influence of the nitrided zone on the performance of the coating-substrate composite, the coating was deposited on hardened as well as on plasma nitrided samples, nitrided under two different nitriding conditions.

Wear tests showed that in all cases a hydrogen-free hard carbon coating produced a reduction in the coefficient of friction of about one order of magnitude. Wear scar profiling and weight loss calculations showed that the wear resistance of the duplex treated steel was dramatically improved compared to uncoated steel. It was also found that nitriding of the substrate improves the wear resistance of the hydrogen-free hard carbon coating compared to the coating deposited on a hardened substrate.
Original languageEnglish
Title of host publicationThinning Films and Tribological Interfaces
EditorsD. Dowson, et. al.
PublisherElsevier
Pages525 - 532
ISBN (Print)0-444-50531-8
DOIs
Publication statusPublished - 2000
MoE publication typeA3 Part of a book or another research book

Publication series

SeriesTribology and Interface Engineering Series
Volume38
ISSN1572-3364

Fingerprint

Nitriding
Coatings
Steel
Wear resistance
Hydrogen
Substrates
Wear of materials
Plasmas
Carbon
Carbon films
Microhardness
Residual stresses
Adhesion
Surface roughness
Friction
Composite materials

Cite this

Podgornik, B., Vizintin, J., Ronkainen, H., & Holmberg, K. (2000). Tribological characteristics of duplex treated AISI 4140 steel. In D. Dowson, & E. A. (Eds.), Thinning Films and Tribological Interfaces (pp. 525 - 532). Elsevier. Tribology and Interface Engineering Series, Vol.. 38 https://doi.org/10.1016/S0167-8922(00)80156-X
Podgornik, Bojan ; Vizintin, Jose ; Ronkainen, Helena ; Holmberg, Kenneth. / Tribological characteristics of duplex treated AISI 4140 steel. Thinning Films and Tribological Interfaces. editor / D. Dowson ; et. al. Elsevier, 2000. pp. 525 - 532 (Tribology and Interface Engineering Series, Vol. 38).
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Podgornik, B, Vizintin, J, Ronkainen, H & Holmberg, K 2000, Tribological characteristics of duplex treated AISI 4140 steel. in D Dowson & EA (eds), Thinning Films and Tribological Interfaces. Elsevier, Tribology and Interface Engineering Series, vol. 38, pp. 525 - 532. https://doi.org/10.1016/S0167-8922(00)80156-X

Tribological characteristics of duplex treated AISI 4140 steel. / Podgornik, Bojan; Vizintin, Jose; Ronkainen, Helena; Holmberg, Kenneth.

Thinning Films and Tribological Interfaces. ed. / D. Dowson; et. al. Elsevier, 2000. p. 525 - 532 (Tribology and Interface Engineering Series, Vol. 38).

Research output: Chapter in Book/Report/Conference proceedingChapter or book articleScientificpeer-review

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T1 - Tribological characteristics of duplex treated AISI 4140 steel

AU - Podgornik, Bojan

AU - Vizintin, Jose

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AU - Holmberg, Kenneth

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AB - In the present study samples of AISI 4140 steel pre-treated by plasma nitriding and coated by a hydrogen-free hard carbon film were investigated with respect to microhardness, surface roughness, residual stress, scratch adhesion and dry sliding wear resistance. To examine the influence of the nitrided zone on the performance of the coating-substrate composite, the coating was deposited on hardened as well as on plasma nitrided samples, nitrided under two different nitriding conditions.Wear tests showed that in all cases a hydrogen-free hard carbon coating produced a reduction in the coefficient of friction of about one order of magnitude. Wear scar profiling and weight loss calculations showed that the wear resistance of the duplex treated steel was dramatically improved compared to uncoated steel. It was also found that nitriding of the substrate improves the wear resistance of the hydrogen-free hard carbon coating compared to the coating deposited on a hardened substrate.

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Podgornik B, Vizintin J, Ronkainen H, Holmberg K. Tribological characteristics of duplex treated AISI 4140 steel. In Dowson D, EA, editors, Thinning Films and Tribological Interfaces. Elsevier. 2000. p. 525 - 532. (Tribology and Interface Engineering Series, Vol. 38). https://doi.org/10.1016/S0167-8922(00)80156-X