Surface Characteristics and Hydrophobicity of Ni-Ti Alloy through Magnetic Mixed Electrical Discharge Machining

Autor:	C.C. Feng, L. Li, C.S. Zhang, G.M. Zheng, X. Bai, Z.W. Niu
Jazyk:	angličtina
Rok vydání:	2019
Předmět:	Ni-Ti alloy surface characteristics hydrophobic magnetic mixed EDM Technology Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Zdroj:	Materials, Vol 12, Iss 3, p 388 (2019)
Druh dokumentu:	article
ISSN:	1996-1944
DOI:	10.3390/ma12030388
Popis:	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°.
Databáze:	Directory of Open Access Journals
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