Effect of the DLC coating on the surface properties of the NiTi alloys

Jiehe Sui; Ye Wu; Zhixue Wang; Wei Cai; Liancheng Zhao

Effect of the DLC coating on the surface properties of the NiTi alloys

Jiehe Sui^*
, Ye Wu
, Zhixue Wang
, Wei Cai
, Liancheng Zhao

^*Corresponding author for this work

School of Materials Science and Engineering

Harbin Institute of Technology

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

2 Scopus citations

Abstract

Diamond-like carbon (DLC) film was fabricated on NiTi alloys surface adopting novel plasma immersion ion implantation and deposition (PIIID) at room temperature, using C₂H₂ as plasma source. Film structure was characterized by Raman spectroscopy. Film structure and hardness were characterized by nano-indentation, and XPS were used to study the surface mechanical properties and composition of the DLC coated and uncoated sample, respectively. The corrosion resistance in Hank's solution was evaluated by mean of potentiodynamic polarization tests and electrochemical impedance spectroscopy (EIS). The results show that the carbon coating on TiNi alloy surface is diamond-like carbon, and the elastic modulus and hardness of the alloys are increased by DLC coating. The surface composition of the NiTi alloys is changed from the TiO₂ to DLC due to the novel PIIID treatment. The corrosion resistance of the NiTi alloys is improved greatly.

Original language	English
Pages (from-to)	445-449
Number of pages	5
Journal	Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Volume	36
Issue number	3
State	Published - Mar 2007

Keywords

Corrosion resistance
Diamond-like carbon
Electrochemical impedance spectroscopy
NiTi shape memory alloys
Novel plasma immersion ion implantation and deposition

Cite this

@article{b5087f47993e4ae897a1482ef5f1495d,

title = "Effect of the DLC coating on the surface properties of the NiTi alloys",

abstract = "Diamond-like carbon (DLC) film was fabricated on NiTi alloys surface adopting novel plasma immersion ion implantation and deposition (PIIID) at room temperature, using C2H2 as plasma source. Film structure was characterized by Raman spectroscopy. Film structure and hardness were characterized by nano-indentation, and XPS were used to study the surface mechanical properties and composition of the DLC coated and uncoated sample, respectively. The corrosion resistance in Hank's solution was evaluated by mean of potentiodynamic polarization tests and electrochemical impedance spectroscopy (EIS). The results show that the carbon coating on TiNi alloy surface is diamond-like carbon, and the elastic modulus and hardness of the alloys are increased by DLC coating. The surface composition of the NiTi alloys is changed from the TiO2 to DLC due to the novel PIIID treatment. The corrosion resistance of the NiTi alloys is improved greatly.",

keywords = "Corrosion resistance, Diamond-like carbon, Electrochemical impedance spectroscopy, NiTi shape memory alloys, Novel plasma immersion ion implantation and deposition",

author = "Jiehe Sui and Ye Wu and Zhixue Wang and Wei Cai and Liancheng Zhao",

year = "2007",

month = mar,

language = "英语",

volume = "36",

pages = "445--449",

journal = "Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering",

issn = "1002-185X",

publisher = "Science Press ",

number = "3",

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TY - JOUR

T1 - Effect of the DLC coating on the surface properties of the NiTi alloys

AU - Sui, Jiehe

AU - Wu, Ye

AU - Wang, Zhixue

AU - Cai, Wei

AU - Zhao, Liancheng

PY - 2007/3

Y1 - 2007/3

N2 - Diamond-like carbon (DLC) film was fabricated on NiTi alloys surface adopting novel plasma immersion ion implantation and deposition (PIIID) at room temperature, using C2H2 as plasma source. Film structure was characterized by Raman spectroscopy. Film structure and hardness were characterized by nano-indentation, and XPS were used to study the surface mechanical properties and composition of the DLC coated and uncoated sample, respectively. The corrosion resistance in Hank's solution was evaluated by mean of potentiodynamic polarization tests and electrochemical impedance spectroscopy (EIS). The results show that the carbon coating on TiNi alloy surface is diamond-like carbon, and the elastic modulus and hardness of the alloys are increased by DLC coating. The surface composition of the NiTi alloys is changed from the TiO2 to DLC due to the novel PIIID treatment. The corrosion resistance of the NiTi alloys is improved greatly.

AB - Diamond-like carbon (DLC) film was fabricated on NiTi alloys surface adopting novel plasma immersion ion implantation and deposition (PIIID) at room temperature, using C2H2 as plasma source. Film structure was characterized by Raman spectroscopy. Film structure and hardness were characterized by nano-indentation, and XPS were used to study the surface mechanical properties and composition of the DLC coated and uncoated sample, respectively. The corrosion resistance in Hank's solution was evaluated by mean of potentiodynamic polarization tests and electrochemical impedance spectroscopy (EIS). The results show that the carbon coating on TiNi alloy surface is diamond-like carbon, and the elastic modulus and hardness of the alloys are increased by DLC coating. The surface composition of the NiTi alloys is changed from the TiO2 to DLC due to the novel PIIID treatment. The corrosion resistance of the NiTi alloys is improved greatly.

KW - Corrosion resistance

KW - Diamond-like carbon

KW - Electrochemical impedance spectroscopy

KW - NiTi shape memory alloys

KW - Novel plasma immersion ion implantation and deposition

UR - https://www.scopus.com/pages/publications/34248353962

M3 - 文章

AN - SCOPUS:34248353962

SN - 1002-185X

VL - 36

SP - 445

EP - 449

JO - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

JF - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

IS - 3

ER -

Effect of the DLC coating on the surface properties of the NiTi alloys

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