Microstructure and Mechanical Properties of (TiAlSi)N Medium Entropy Coatings

ZHANG Ya-nan, ZHANG Hao, ZHOU Zi-chao, XIAO Yu-qi, DENG Na, FU Bin-yun, DUO Shu-wang

doi:10.16577/j.issn.1001-1560.2022.0062

Materials Protection >

2022 , Vol. 55 >Issue 3: 23 - 27

DOI: https://doi.org/10.16577/j.issn.1001-1560.2022.0062

Microstructure and Mechanical Properties of (TiAlSi)N Medium Entropy Coatings

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Jiangxi Key Laboratory of Surface Engineering,School of Materials and Mechanical&Electrical Engineering,Jiangxi Science and Technology Normal University,Nanchang 330013,China

Received date: 2021-09-28

Revised date: 2021-10-29

Accepted date: 2021-10-13

Online published: 2023-12-27

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Abstract

In order to improve the protective effect of the surface coating of mechanical parts, combining with the unique design concept of medium entropy alloy,(TiAlSi)N coatings were deposited on surface of 316 L stainless steel by plasma enhanced magnetron sputtering(PEMS). The chemical composition, crystal structure, micro-morphology and surface roughness of coatings were analyzed using X-ray energy dispersive spectrometer(EDS), X-ray diffractometer(XRD), field emission scanning electron microscope(FE-SEM) and atomic force microscope(AFM). The bonding strength, hardness and elastic modulus of the coatings were tested with nano scratch/indentation instrument. EDS analysis results showed that(TiAlSi)N coating was a medium entropy ceramic coating.(TiAlSi)N coatings possessed an amorphous structure, a smooth and compact surface, and good mechanical properties. The bonding strength, hardness and elastic modulus were 25 N, 21 GPa and 225 GPa, respectively. These experimental results would provide a valuable data reference for further future research on this kind of coating systems.

Key words： PEMS; medium entropy alloy; (TiAlSi)N coating; microstructure; nanoindentation

Cite this article

ZHANG Ya-nan, ZHANG Hao, ZHOU Zi-chao, XIAO Yu-qi, DENG Na, FU Bin-yun, DUO Shu-wang . Microstructure and Mechanical Properties of (TiAlSi)N Medium Entropy Coatings[J]. Materials Protection, 2022 , 55(3) : 23 -27 . DOI: 10.16577/j.issn.1001-1560.2022.0062

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