Characterization of laser surface-alloyed Ti-Ni-Ag coatings and evaluation of their corrosion and antibacterial performance

被引：5
|
作者：
Qiao, Q. [1 ]
Cristino, V. A. M. [1 ]
Tam, L. M. [1 ,2 ]
Chang, W. W. [4 ,5 ]
Qian, H. C. [4 ,5 ]
Zhang, D. W. [4 ,5 ]
Kwok, C. T. [1 ,3 ]
机构：
[1] Univ Macau, Dept Electromech Engn, Macau, Peoples R China
[2] Inst Dev & Qual, Taipa, Macao, Peoples R China
[3] Univ Macau, Inst Appl Phys & Mat Engn, Macau, Peoples R China
[4] Univ Sci & Technol Beijing, Inst Adv Mat & Technol, Beijing Adv Innovat Ctr Mat Genome Engn, Beijing 100083, Peoples R China
[5] Univ Sci & Technol Beijing, Natl Mat Corros & Protect Data Ctr, Beijing 100083, Peoples R China
来源：
SURFACE & COATINGS TECHNOLOGY | 2023年 / 474卷
关键词：
Laser surface alloying; Ti-Ni-Ag coatings; TiNi substrate; Hardness; Corrosion; Antibacterial efficacy; SCANNING ELECTROCHEMICAL MICROSCOPY; MECHANICAL-PROPERTIES; SILVER NANOPARTICLES; IN-VITRO; MARTENSITIC-TRANSFORMATION; ELECTRONIC-PROPERTIES; STAINLESS-STEEL; TITANIUM-ALLOYS; PASSIVE FILM; OXIDE-FILMS;
D O I：
10.1016/j.surfcoat.2023.130119
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The novel antibacterial Ti-Ni-Ag coatings with various Ag contents (2.1 to 4.6 wt%) were successfully fabricated on TiNi substrate using laser surface alloying. Microstructure, hardness, corrosion and antibacterial properties of the laser surface-alloyed (LSAed) Ti-Ni-Ag coatings were investigated. In the alloyed layers, more Ti2Ni, beta-Ti, and Ag particles are formed with a higher Ag content. The hardness of coating with 4.6 wt% Ag is increased by 109 % as compared with the TiNi substrate mainly attributed to the high Ti2Ni content. Compared with TiNi, the corrosion resistance of LSAed Ti-Ni-Ag coatings was enhanced as evidenced by a noble shift in the corrosion potential and a lower passive current density owing to the thicker and denser passive films, which was further confirmed by scanning electrochemical microscopy (SECM), X-ray photoelectron (XPS) and Mott-Schottky an-alyses. Also, it was found that the released Ag+ ions and Ag particles are responsible for enhancing the anti-bacterial efficacy of the LSAed Ti-Ni-Ag against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus).
引用
收藏
页数：20
相关论文
共 50 条
  • [1] Corrosion resistance of alloy 600 surface-alloyed by laser beam
    Shin, JK
    Suh, JH
    Kim, JS
    Kang, SJL
    LASER MATERIALS PROCESSING CONFERENCE, PTS 1 & 2: ICALEO '97, 1997, : F108 - F117
  • [2] Surface hardness and corrosion behavior of laser surface-alloyed Ti6Al4V with copper
    Qiao, Q.
    Tam, L. M.
    Cristino, V. A. M.
    Kwok, C. T.
    SURFACE & COATINGS TECHNOLOGY, 2022, 444
  • [3] Effect of laser parameters on properties of surface-alloyed Al substrate with Ni
    Vaziri, S. A.
    Shahverdi, H. R.
    Torkamany, M. J.
    Shabestari, S. G.
    OPTICS AND LASERS IN ENGINEERING, 2009, 47 (09) : 971 - 975
  • [4] Characterization and corrosion behaviour of laser surface alloyed Ni-Cr-W-Mo-Cu-C-B coatings
    GarciaAlonso, MC
    Escudero, ML
    Lopez, V
    Macias, A
    ISIJ INTERNATIONAL, 1997, 37 (02) : 161 - 168
  • [5] Microstructure of Ni2B laser-induced surface-alloyed α-Fe
    Dehm, G
    Scheu, C
    Bamberger, M
    PHASE TRANSFORMATIONS AND SYSTEMS DRIVEN FAR FROM EQUILIBRIUM, 1998, 481 : 45 - 50
  • [6] Corrosion properties of Ti-Ni-Cu coatings fabricated by laser surface alloying
    Qiao, Q.
    Cristino, V. A. M.
    Tam, L. M.
    Kwok, C. T.
    CORROSION SCIENCE, 2023, 222
  • [7] Characterization and antibacterial performance of ZrNO-Ag coatings
    Chang, Yin-Yu
    Huang, Heng-Li
    Chen, Ya-Chi
    Weng, Jui-Ching
    Lai, Chih-Ho
    SURFACE & COATINGS TECHNOLOGY, 2013, 231 : 224 - 228
  • [8] Biocompatibility evaluation of antibacterial Ti-Ag alloys with nanotubular coatings
    Liu, Xingwang
    Chen, Chen
    Zhang, Hangzhou
    Tian, Ang
    You, Junhua
    Wu, Lin
    Lei, Zeming
    Li, Xi
    Bai, Xizhuang
    Chen, Shiyi
    INTERNATIONAL JOURNAL OF NANOMEDICINE, 2019, 14 : 457 - 468
  • [9] Surface Features and Electrochemical Properties of Corrosion Resistant Ni–Ti Coatings
    Ramesh S. Bhat
    K. B. Manjunatha
    S. Kshama Shetty
    Protection of Metals and Physical Chemistry of Surfaces, 2022, 58 : 1071 - 1076
  • [10] Characterization and corrosion study of NiTi laser surface alloyed with Nb or Co
    Ng, K. W.
    Man, H. C.
    Yue, T. M.
    APPLIED SURFACE SCIENCE, 2011, 257 (08) : 3269 - 3274
12345