Surface amorphization of NiTi alloy induced by Ultrasonic Nanocrystal Surface Modification for improved mechanical properties

Chang Ye, Xianfeng Zhou, Abhishek Telang, Hongyu Gao, Zhencheng Ren, Haifeng Qin, Sergey Suslov, Amrinder S. Gill, S. R. Mannava, Dong Qian, Gary L. Doll, Ashlie Martini, Nita Sahai, Vijay K. Vasudevan

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

We report herein the effects of Ultrasonic Nano-crystal Surface Modification (UNSM), a severe surface plastic deformation process, on the microstructure, mechanical (hardness, wear), wettability and biocompatibility properties of NiTi shape memory alloy. Complete surface amorphization of NiTi was achieved by this process, which was confirmed by X-ray diffraction and high-resolution transmission electron microscopy. The wear resistance of the samples after UNSM processing was significantly improved compared with the non-processed samples due to increased surface hardness of the alloy by this process. In addition, cell culture study demonstrated that the biocompatibility of the samples after UNSM processing has not been compromised compared to the non-processed sample. The combination of high wear resistance and good biocompatibility makes UNSM an appealing process for treating alloy-based biomedical devices.

Original languageEnglish
Article number1609
Pages (from-to)455-462
Number of pages8
JournalJournal of the Mechanical Behavior of Biomedical Materials
Volume53
DOIs
Publication statusPublished - 1 Jan 2016

Fingerprint

Amorphization
Nanocrystals
Surface treatment
Ultrasonics
Biocompatibility
Mechanical properties
Crystals
Wear resistance
Hardness
Processing
High resolution transmission electron microscopy
Shape memory effect
Cell culture
Wetting
Plastic deformation
Wear of materials
X ray diffraction
Microstructure

Keywords

  • Biocompatibility
  • Cell culture
  • Surface amorphization
  • Ultrasonic Nano-crystal Surface Modification (UNSM)
  • Wear resistance

ASJC Scopus subject areas

  • Biomaterials
  • Biomedical Engineering
  • Mechanics of Materials

Cite this

Surface amorphization of NiTi alloy induced by Ultrasonic Nanocrystal Surface Modification for improved mechanical properties. / Ye, Chang; Zhou, Xianfeng; Telang, Abhishek; Gao, Hongyu; Ren, Zhencheng; Qin, Haifeng; Suslov, Sergey; Gill, Amrinder S.; Mannava, S. R.; Qian, Dong; Doll, Gary L.; Martini, Ashlie; Sahai, Nita; Vasudevan, Vijay K.

In: Journal of the Mechanical Behavior of Biomedical Materials, Vol. 53, 1609, 01.01.2016, p. 455-462.

Research output: Contribution to journalArticle

Ye, C, Zhou, X, Telang, A, Gao, H, Ren, Z, Qin, H, Suslov, S, Gill, AS, Mannava, SR, Qian, D, Doll, GL, Martini, A, Sahai, N & Vasudevan, VK 2016, 'Surface amorphization of NiTi alloy induced by Ultrasonic Nanocrystal Surface Modification for improved mechanical properties', Journal of the Mechanical Behavior of Biomedical Materials, vol. 53, 1609, pp. 455-462. https://doi.org/10.1016/j.jmbbm.2015.09.005
Ye, Chang ; Zhou, Xianfeng ; Telang, Abhishek ; Gao, Hongyu ; Ren, Zhencheng ; Qin, Haifeng ; Suslov, Sergey ; Gill, Amrinder S. ; Mannava, S. R. ; Qian, Dong ; Doll, Gary L. ; Martini, Ashlie ; Sahai, Nita ; Vasudevan, Vijay K. / Surface amorphization of NiTi alloy induced by Ultrasonic Nanocrystal Surface Modification for improved mechanical properties. In: Journal of the Mechanical Behavior of Biomedical Materials. 2016 ; Vol. 53. pp. 455-462.
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