Surface modification of austenitic stainless steel with plasma nitriding for biomedical applications

Keng Liang Ou; Hsin Hua Chou; Chung Ming Liu; Pei Wen Peng

doi:10.1016/j.surfcoat.2011.08.001

Surface modification of austenitic stainless steel with plasma nitriding for biomedical applications

Keng Liang Ou, Hsin Hua Chou, Chung Ming Liu, Pei Wen Peng

Research output: Contribution to journal › Article › peer-review

19 Citations (Scopus)

Abstract

In the present study, plasma nitriding of AISI type 303 austenitic stainless steel (SS) specimens was performed using a microwave system. The nitrided layers were characterized by performing scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), and a Vickers microhardness test. The antibacterial activities of the nitrided layers were evaluated. XRD and TEM showed that a single γ_N phase was formed by plasma nitriding at the plasma power of 700W and 450°C. The analytical results demonstrated that the hardness of type 303 specimens could be enhanced by plasma nitriding because of the formation of the γ_N phase. A bacterial test also demonstrated that the nitrided layer exhibited excellent antibacterial properties.

Original language	English
Pages (from-to)	1142-1145
Number of pages	4
Journal	Surface and Coatings Technology
Volume	206
Issue number	6
DOIs	https://doi.org/10.1016/j.surfcoat.2011.08.001
Publication status	Published - Dec 15 2011

Keywords

γ phase
303 austenitic stainless steel
Plasma nitriding

ASJC Scopus subject areas

Chemistry(all)
Condensed Matter Physics
Materials Chemistry
Surfaces, Coatings and Films
Surfaces and Interfaces

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10.1016/j.surfcoat.2011.08.001

Cite this

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title = "Surface modification of austenitic stainless steel with plasma nitriding for biomedical applications",

abstract = "In the present study, plasma nitriding of AISI type 303 austenitic stainless steel (SS) specimens was performed using a microwave system. The nitrided layers were characterized by performing scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), and a Vickers microhardness test. The antibacterial activities of the nitrided layers were evaluated. XRD and TEM showed that a single γN phase was formed by plasma nitriding at the plasma power of 700W and 450°C. The analytical results demonstrated that the hardness of type 303 specimens could be enhanced by plasma nitriding because of the formation of the γN phase. A bacterial test also demonstrated that the nitrided layer exhibited excellent antibacterial properties.",

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T1 - Surface modification of austenitic stainless steel with plasma nitriding for biomedical applications

AU - Ou, Keng Liang

AU - Chou, Hsin Hua

AU - Liu, Chung Ming

AU - Peng, Pei Wen

PY - 2011/12/15

Y1 - 2011/12/15

N2 - In the present study, plasma nitriding of AISI type 303 austenitic stainless steel (SS) specimens was performed using a microwave system. The nitrided layers were characterized by performing scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), and a Vickers microhardness test. The antibacterial activities of the nitrided layers were evaluated. XRD and TEM showed that a single γN phase was formed by plasma nitriding at the plasma power of 700W and 450°C. The analytical results demonstrated that the hardness of type 303 specimens could be enhanced by plasma nitriding because of the formation of the γN phase. A bacterial test also demonstrated that the nitrided layer exhibited excellent antibacterial properties.

AB - In the present study, plasma nitriding of AISI type 303 austenitic stainless steel (SS) specimens was performed using a microwave system. The nitrided layers were characterized by performing scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), and a Vickers microhardness test. The antibacterial activities of the nitrided layers were evaluated. XRD and TEM showed that a single γN phase was formed by plasma nitriding at the plasma power of 700W and 450°C. The analytical results demonstrated that the hardness of type 303 specimens could be enhanced by plasma nitriding because of the formation of the γN phase. A bacterial test also demonstrated that the nitrided layer exhibited excellent antibacterial properties.

KW - γ phase

KW - 303 austenitic stainless steel

KW - Plasma nitriding

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Surface modification of austenitic stainless steel with plasma nitriding for biomedical applications

Abstract

Keywords

ASJC Scopus subject areas

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