Electrochemical corrosion behavior of laser gas nitrided layer on the NiTi shape memory alloy in Hank's solution

Song Zhang; Hujiao Tang; Fang Hu; Chunhua Zhang; Hau Chung Man; Qiaoqian Zhang

doi:10.4028/www.scientific.net/AMR.299-300.179

Electrochemical corrosion behavior of laser gas nitrided layer on the NiTi shape memory alloy in Hank's solution

Song Zhang, Hujiao Tang, Fang Hu, Chunhua Zhang, Hau Chung Man, Qiaoqian Zhang

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

Abstract

A nitrided layer was formed on the NiTi shape memory alloy (SMA) after being irradiated by a continuous wave Nd-YAG laser in a N2environment. With optimum process parameters, a compact laser modified gradient layer reinforced with fine TiN particles was achieved. Electrochemical measurements of the laser gas nitrided layer on the NiTi SMA showed that the corrosion potential and the breakdown potential were increased while the corrosion current was decreased as compared with the untreated the NiTi SMA. The polarization resistance of the laser gas nitrided layer on the NiTi SMA was increased significantly while the capacitance was decreased. Based on the EIS spectra, a simple model and an equivalent circuit were proposed to describe the electrode-electrolyte interfaces.

Original language	English
Title of host publication	Materials and Manufacturing
Pages	179-182
Number of pages	4
DOIs	https://doi.org/10.4028/www.scientific.net/AMR.299-300.179
Publication status	Published - 30 Aug 2011
Event	International Conference on Material and Manufacturing, ICMM 2011 - Jinzhou, Liaoning, China Duration: 7 Sept 2011 → 9 Sept 2011

Publication series

Name	Advanced Materials Research
Volume	299-300
ISSN (Print)	1022-6680

Conference

Conference	International Conference on Material and Manufacturing, ICMM 2011
Country/Territory	China
City	Jinzhou, Liaoning
Period	7/09/11 → 9/09/11

Keywords

Electrochemical corrosion
Electrochemical impedance spectroscopy (EIS)
Laser gas nitriding (LGN)
NiTi shape memory alloy

ASJC Scopus subject areas

General Engineering

More information

10.4028/www.scientific.net/AMR.299-300.179

Cite this

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title = "Electrochemical corrosion behavior of laser gas nitrided layer on the NiTi shape memory alloy in Hank's solution",

abstract = "A nitrided layer was formed on the NiTi shape memory alloy (SMA) after being irradiated by a continuous wave Nd-YAG laser in a N2environment. With optimum process parameters, a compact laser modified gradient layer reinforced with fine TiN particles was achieved. Electrochemical measurements of the laser gas nitrided layer on the NiTi SMA showed that the corrosion potential and the breakdown potential were increased while the corrosion current was decreased as compared with the untreated the NiTi SMA. The polarization resistance of the laser gas nitrided layer on the NiTi SMA was increased significantly while the capacitance was decreased. Based on the EIS spectra, a simple model and an equivalent circuit were proposed to describe the electrode-electrolyte interfaces.",

keywords = "Electrochemical corrosion, Electrochemical impedance spectroscopy (EIS), Laser gas nitriding (LGN), NiTi shape memory alloy",

author = "Song Zhang and Hujiao Tang and Fang Hu and Chunhua Zhang and Man, {Hau Chung} and Qiaoqian Zhang",

year = "2011",

month = aug,

day = "30",

doi = "10.4028/www.scientific.net/AMR.299-300.179",

language = "English",

isbn = "9783037852019",

series = "Advanced Materials Research",

pages = "179--182",

booktitle = "Materials and Manufacturing",

note = "International Conference on Material and Manufacturing, ICMM 2011 ; Conference date: 07-09-2011 Through 09-09-2011",

}

Zhang, S, Tang, H, Hu, F, Zhang, C, Man, HC & Zhang, Q 2011, Electrochemical corrosion behavior of laser gas nitrided layer on the NiTi shape memory alloy in Hank's solution. in Materials and Manufacturing. Advanced Materials Research, vol. 299-300, pp. 179-182, International Conference on Material and Manufacturing, ICMM 2011, Jinzhou, Liaoning, China, 7/09/11. https://doi.org/10.4028/www.scientific.net/AMR.299-300.179

Electrochemical corrosion behavior of laser gas nitrided layer on the NiTi shape memory alloy in Hank's solution. / Zhang, Song; Tang, Hujiao; Hu, Fang et al.
Materials and Manufacturing. 2011. p. 179-182 (Advanced Materials Research; Vol. 299-300).

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

TY - GEN

T1 - Electrochemical corrosion behavior of laser gas nitrided layer on the NiTi shape memory alloy in Hank's solution

AU - Zhang, Song

AU - Tang, Hujiao

AU - Hu, Fang

AU - Zhang, Chunhua

AU - Man, Hau Chung

AU - Zhang, Qiaoqian

PY - 2011/8/30

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N2 - A nitrided layer was formed on the NiTi shape memory alloy (SMA) after being irradiated by a continuous wave Nd-YAG laser in a N2environment. With optimum process parameters, a compact laser modified gradient layer reinforced with fine TiN particles was achieved. Electrochemical measurements of the laser gas nitrided layer on the NiTi SMA showed that the corrosion potential and the breakdown potential were increased while the corrosion current was decreased as compared with the untreated the NiTi SMA. The polarization resistance of the laser gas nitrided layer on the NiTi SMA was increased significantly while the capacitance was decreased. Based on the EIS spectra, a simple model and an equivalent circuit were proposed to describe the electrode-electrolyte interfaces.

AB - A nitrided layer was formed on the NiTi shape memory alloy (SMA) after being irradiated by a continuous wave Nd-YAG laser in a N2environment. With optimum process parameters, a compact laser modified gradient layer reinforced with fine TiN particles was achieved. Electrochemical measurements of the laser gas nitrided layer on the NiTi SMA showed that the corrosion potential and the breakdown potential were increased while the corrosion current was decreased as compared with the untreated the NiTi SMA. The polarization resistance of the laser gas nitrided layer on the NiTi SMA was increased significantly while the capacitance was decreased. Based on the EIS spectra, a simple model and an equivalent circuit were proposed to describe the electrode-electrolyte interfaces.

KW - Electrochemical corrosion

KW - Electrochemical impedance spectroscopy (EIS)

KW - Laser gas nitriding (LGN)

KW - NiTi shape memory alloy

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BT - Materials and Manufacturing

T2 - International Conference on Material and Manufacturing, ICMM 2011

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Electrochemical corrosion behavior of laser gas nitrided layer on the NiTi shape memory alloy in Hank's solution

Abstract

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Keywords

ASJC Scopus subject areas

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