Microstructure and Corrosion Behavior of Ni-AlloyCrN Nanolayered Coatings

Joint Authors

Lee, Jyh-Wei
Wu, Fan-Bean
Huang, Hao-Hsiang
Chang, Li-Chun

Source

Journal of Nanomaterials

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