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The Characteristics of CrNX Coatings with Different Interlayer

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Abstract:

CrNx coatings with different interlayer were deposited on AISI 304 stainless steel substrates by conventional DC magnetron sputtering technology. Effects of the concentration and preparing condition on the microstructure and mechanical properties of the coatings were studied by using SEM, XRD and nanoindentation technique. The results show that all investigated CrNx coatings present a NaCl type crystal structure with a stronger (200) preferred orientation. However, the shift of CrN diffraction peaks and its orientation are different in CrNx coatings with different interlayer. Furthermore, there are Cr phases in the coatings that Cr/CrNx multilayer was alternately deposited in the interlayer. In three kinds of them, CrNx coatings that Cr/CrNx multilayer was alternately deposited in the interlayer show in turn higher hardness of about 31GPa and worse adhesion. On the contrary, CrNx coatings that the content of nitrogen was gradually increased in the interlayer present in turn lower hardness and best adhesion.

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Periodical:

Advanced Materials Research (Volumes 204-210)

Pages:

938-941

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.204-210.938

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Online since:

February 2011

Authors:

Hui Jin Song, Qiang Yan

Keywords:

Adhesion, CrNX Coating, DC Magnetron Sputtering, Hardness, Interlayer

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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