Microstructure and Corrosion Behavior of Ni-AlloyCrN Nanolayered Coatings
Joint Authors
Lee, Jyh-Wei
Wu, Fan-Bean
Huang, Hao-Hsiang
Chang, Li-Chun
Source
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2010-11-08
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Engineering Sciences and Information Technology
Chemistry
Civil Engineering
Abstract EN
The Ni-alloy/CrN nanolayered coatings, Ni-Al/CrN and Ni-P/CrN, were deposited on (100) silicon wafer and AISI 420 stainless steel substrates by dual-gun sputtering technique.
The influences of the layer microstructure on corrosion behavior of the nanolayered thin films were investigated.
The bilayer thickness was controlled approximately 10 nm with a total coating thickness of 1 μm.
The single-layer Ni-alloy and CrN coatings deposited at 350∘C were also evaluated for comparison.
Through phase identification, phases of Ni-P and Ni-Al compounds were observed in the single Ni-alloy layers.
On the other hand, the nanolayered Ni-P/CrN and Ni-Al/CrN coatings showed an amorphous/nanocrystalline microstructure.
The precipitation of Ni-Al and Ni-P intermetallic compounds was suppressed by the nanolayered configuration of Ni-alloy/CrN coatings.
Through Tafel analysis, the Ecorr and Icorr values ranged from –0.64 to –0.33 V and 1.42×10−5 to 1.14×10−6 A/cm2, respectively, were deduced for various coating assemblies.
The corrosion mechanisms and related behaviors of the coatings were compared.
The coatings with a nanolayered Ni-alloy/CrN configuration exhibited a superior corrosion resistance to single-layer alloy or nitride coatings.
American Psychological Association (APA)
Huang, Hao-Hsiang& Wu, Fan-Bean& Lee, Jyh-Wei& Chang, Li-Chun. 2010. Microstructure and Corrosion Behavior of Ni-AlloyCrN Nanolayered Coatings. Journal of Nanomaterials،Vol. 2011, no. 2011, pp.1-6.
https://search.emarefa.net/detail/BIM-448667
Modern Language Association (MLA)
Huang, Hao-Hsiang…[et al.]. Microstructure and Corrosion Behavior of Ni-AlloyCrN Nanolayered Coatings. Journal of Nanomaterials No. 2011 (2011), pp.1-6.
https://search.emarefa.net/detail/BIM-448667
American Medical Association (AMA)
Huang, Hao-Hsiang& Wu, Fan-Bean& Lee, Jyh-Wei& Chang, Li-Chun. Microstructure and Corrosion Behavior of Ni-AlloyCrN Nanolayered Coatings. Journal of Nanomaterials. 2010. Vol. 2011, no. 2011, pp.1-6.
https://search.emarefa.net/detail/BIM-448667
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-448667