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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.
Afiliação
  • Ye C; Department of Mechanical Engineering, University of Akron, Akron, OH 44325, United States. Electronic address: cye@uakron.edu.
  • Zhou X; Department of Mechanical Engineering, University of Akron, Akron, OH 44325, United States; Department of Polymer Science, University of Akron, Akron, OH 44325, United States.
  • Telang A; Department of Mechanical and Materials Engineering, University of Cincinnati, Cincinnati, OH 45221, United States.
  • Gao H; School of Engineering, University of California - Merced, Merced, CA 95343, United States.
  • Ren Z; Department of Mechanical Engineering, University of Akron, Akron, OH 44325, United States.
  • Qin H; Timken Engineered Surfaces Laboratories, University of Akron, Akron, OH 44325, United States.
  • Suslov S; Qatar Environment and Energy Research Institute (QEERI), Qatar Foundation, Doha, Qatar.
  • Gill AS; Department of Mechanical and Materials Engineering, University of Cincinnati, Cincinnati, OH 45221, United States.
  • Mannava SR; Department of Mechanical and Materials Engineering, University of Cincinnati, Cincinnati, OH 45221, United States.
  • Qian D; Department of Mechanical Engineering, University of Texas at Dallas, Richardson, TX 75080-3021, United States.
  • Doll GL; Timken Engineered Surfaces Laboratories, University of Akron, Akron, OH 44325, United States.
  • Martini A; School of Engineering, University of California - Merced, Merced, CA 95343, United States.
  • Sahai N; Department of Polymer Science, University of Akron, Akron, OH 44325, United States; Department of Geology, University of Akron, Akron, OH 44325, United States; Integrated Bioscience, University of Akron, Akron, OH 44325, United States.
  • Vasudevan VK; Department of Mechanical and Materials Engineering, University of Cincinnati, Cincinnati, OH 45221, United States.
J Mech Behav Biomed Mater ; 53: 455-462, 2016 Jan.
Article em En | MEDLINE | ID: mdl-26410178
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.
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Titânio / Ligas / Nanopartículas / Fenômenos Mecânicos / Ondas Ultrassônicas / Níquel Idioma: En Ano de publicação: 2016 Tipo de documento: Article
Texto completo
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Titânio / Ligas / Nanopartículas / Fenômenos Mecânicos / Ondas Ultrassônicas / Níquel Idioma: En Ano de publicação: 2016 Tipo de documento: Article