Surface Characteristics and Hydrophobicity of Ni-Ti Alloy through Magnetic Mixed Electrical Discharge Machining
Open Access
- 26 January 2019
- Vol. 12 (3), 388
- https://doi.org/10.3390/ma12030388
Abstract
Nickel–titanium (Ni-Ti) alloy has been selected as stent material given its good biocompatibility. In this study, experimental research on this material was conducted using magnetic field-assisted electrical discharge machining (EDM). The surface topography of the machined workpiece was analyzed with a scanning electron microscope (SEM). Hydrophobicity was measured by using an optical contact angle measuring instrument. The roughness values of different positions on the surface were measured using a TR200 roughness instrument. Results showed that the composite structure of solidification bulge–crater–pore–particle can be prepared on the surface of the Ni-Ti alloy through magnetic mixed EDM using suitable processing parameters. Moreover, the contact angle of the surface reaches 138.2°.Keywords
Funding Information
- Natural Science Foundation of Shandong Province (ZR2018MEE025)
This publication has 21 references indexed in Scilit:
- Surface integrity evolution and machining efficiency analysis of W-EDM of nickel-based alloyApplied Surface Science, 2014
- A review of shape memory alloy research, applications and opportunitiesMaterials & Design (1980-2015), 2014
- Electrical discharge machining characteristics of nickel–titanium shape memory alloy based on full factorial designJournal of Intelligent Material Systems and Structures, 2013
- Fabrication of the superhydrophobic surface on aluminum alloy by anodizing and polymeric coatingApplied Surface Science, 2013
- Stimulus-responsive shape memory materials: A reviewMaterials & Design (1980-2015), 2012
- Single-Step Direct Fabrication of Pillar-on-Pore Hybrid Nanostructures in Anodizing Aluminum for Superior Superhydrophobic EfficiencyACS Applied Materials & Interfaces, 2011
- Nitinol for Prosthetic and Orthotic ApplicationsJournal of Materials Engineering and Performance, 2011
- Micromilling of NiTi Shape-Memory Alloys with Ball Nose CuttersMaterials and Manufacturing Processes, 2009
- Carbon plasma immersion ion implantation of nickel–titanium shape memory alloysBiomaterials, 2005
- Turning and Drilling of NiTi Shape Memory AlloysCIRP Annals, 2004