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Magnetron Sputtered NbN Films with Nb Interlayer on Mild Steel
Joint Authors
Suri, A. K.
Singh, Kulwant
Bidaye, A. C.
Source
International Journal of Corrosion
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-09-04
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
The aim of the study is to extend the NbN coating on MS with Nb interlayer to explore the benefits of hard nitride coatings on low-cost structural material and to compare the coating with NbN monolithic coating on SS.
NbN on MS and SS was deposited by reactive d.c.
magnetron sputtering at various N2/Ar flow ratios and substrate bias.
Deposition rate decreased from 20 to 10 nm/min (without biasing) and from 16 to 8 nm/min (−50 V biasing) when FN2/FAr ratio was varied from zero to 70%.
Deposition rate decreased with the increase in bias voltage.
Coatings showed hexagonal β Nb2N, cubic δ NbN, and hexagonal δ′ NbN as major phases with the increasing N2 flow.
Surface hardness reached a maximum of 2040 HK25 at a FN2/FAr of 20%.
Critical loads, for cohesive and adhesive failure for coating on MS, were between 6–8 N and 9–12 N respectively; for coating on SS, the values were between 7–15 N and 12–25 N respectively.
Duplex coatings were studied for hardness by Knoop microindentation, adhesion by scratch tester, and corrosion by potentiodynamic polarization technique.
Hardness, adhesion, and corrosion resistance all improved when NbN coating was incorporated with Nb interlayer on MS.
American Psychological Association (APA)
Singh, Kulwant& Bidaye, A. C.& Suri, A. K.. 2011. Magnetron Sputtered NbN Films with Nb Interlayer on Mild Steel. International Journal of Corrosion،Vol. 2011, no. 2011, pp.1-11.
https://search.emarefa.net/detail/BIM-495548
Modern Language Association (MLA)
Singh, Kulwant…[et al.]. Magnetron Sputtered NbN Films with Nb Interlayer on Mild Steel. International Journal of Corrosion No. 2011 (2011), pp.1-11.
https://search.emarefa.net/detail/BIM-495548
American Medical Association (AMA)
Singh, Kulwant& Bidaye, A. C.& Suri, A. K.. Magnetron Sputtered NbN Films with Nb Interlayer on Mild Steel. International Journal of Corrosion. 2011. Vol. 2011, no. 2011, pp.1-11.
https://search.emarefa.net/detail/BIM-495548
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-495548