Nanomechanical properties of duplex treated 42CrMo4 steel

J. Chen; X. Y. Li; R. Ji; R. Khan; G. Fuentes

doi:10.1179/1743294413Y.0000000131

Nanomechanical properties of duplex treated 42CrMo4 steel

J. Chen^*, X. Y. Li, R. Ji, R. Khan, G. Fuentes

^*Corresponding author for this work

Metallurgy and Materials

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

Active screen plasma nitriding (ASPN) has attracted interest from researchers and industries as it can overcome several intrinsic problems in direct current glow discharge plasma nitriding such as arcing, hollow cathode, edge effects and the strong temperature dependence on the shape of the samples. In this study, an advanced duplex system based on ASPN and chromium nitride coating was synthesised on 42CrMo4 steels. The effects of ASPN on the mechanical properties, nanoimpact resistance and scratch resistance at different load ranges were investigated. The results show that the surface hardness H, reduced elastic modulus E_r and the ratios of H/E_r and H ³/E_r ² can significantly be improved at the testing load range from 5 to 100 mN. The enhanced nanoimpact and scratch resistance can be well correlated to the improved H/E_r and H ³/E_r ².

Original language	English
Pages (from-to)	462-467
Number of pages	6
Journal	Surface Engineering
Volume	29
Issue number	6
DOIs	https://doi.org/10.1179/1743294413Y.0000000131
Publication status	Published - 1 Jan 2013

Keywords

CrN
Nanoimpact
Nanoindentation
Nanoscratch
Nitriding

ASJC Scopus subject areas

Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

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title = "Nanomechanical properties of duplex treated 42CrMo4 steel",

abstract = "Active screen plasma nitriding (ASPN) has attracted interest from researchers and industries as it can overcome several intrinsic problems in direct current glow discharge plasma nitriding such as arcing, hollow cathode, edge effects and the strong temperature dependence on the shape of the samples. In this study, an advanced duplex system based on ASPN and chromium nitride coating was synthesised on 42CrMo4 steels. The effects of ASPN on the mechanical properties, nanoimpact resistance and scratch resistance at different load ranges were investigated. The results show that the surface hardness H, reduced elastic modulus Er and the ratios of H/Er and H 3/Er 2 can significantly be improved at the testing load range from 5 to 100 mN. The enhanced nanoimpact and scratch resistance can be well correlated to the improved H/Er and H 3/Er 2.",

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author = "J. Chen and Li, {X. Y.} and R. Ji and R. Khan and G. Fuentes",

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AU - Chen, J.

AU - Li, X. Y.

AU - Ji, R.

AU - Khan, R.

AU - Fuentes, G.

PY - 2013/1/1

Y1 - 2013/1/1

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AB - Active screen plasma nitriding (ASPN) has attracted interest from researchers and industries as it can overcome several intrinsic problems in direct current glow discharge plasma nitriding such as arcing, hollow cathode, edge effects and the strong temperature dependence on the shape of the samples. In this study, an advanced duplex system based on ASPN and chromium nitride coating was synthesised on 42CrMo4 steels. The effects of ASPN on the mechanical properties, nanoimpact resistance and scratch resistance at different load ranges were investigated. The results show that the surface hardness H, reduced elastic modulus Er and the ratios of H/Er and H 3/Er 2 can significantly be improved at the testing load range from 5 to 100 mN. The enhanced nanoimpact and scratch resistance can be well correlated to the improved H/Er and H 3/Er 2.

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Nanomechanical properties of duplex treated 42CrMo4 steel

Abstract

Keywords

ASJC Scopus subject areas

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