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Instructions for Authors - Facultatea de Mecanica Craiova ...

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SMAT2008M13NITINOL: PROPERTIES AND APPLICATIONSDaniela TARNITA, Dan TARNITA, Nicu BIZDOACA, Cosmin BERCEANUAbstract: The paper presents the principal properties and ones of the most known applications of Nitinol. SMAbased on Ni-Ti alloy are the alloys most frequently used in commercial applications because they combine goodmechanical properties with shape memory effect. One of the most known intelligent materials is nitinol which offersmany functional advantages over conventional implantable alloys. Applications of SMA to the biomedical field havebeen successful because of their functional qualities, enhancing both the possibility and the execution of less invasivesurgeries. The biocompatibility of these alloys is one of their most important features. Different applications exploitremarkable properties of Nitinol like: superelasticity and <strong>for</strong>ce hysteresis, the shape memory effect (one-way or twoway),the steerability and torquability, less sensitivity to magnetic resonance imaging, excellent corrosion resistance.Because of their properties, there is a great technological interest in the use of SMA <strong>for</strong> different applications. SuperelasticNitinol has become a material of strategic importance as it allows to overcome a wi<strong>de</strong> range of technical and<strong>de</strong>sign issues relating to the miniaturization of different medical or nonmedical <strong>de</strong>vices.Keywords: Nitinol, properties, nonmedical applications, medical applicationsDaniela Tarnita, Prof.dr.eng., University of <strong>Craiova</strong>, Department of Applied Mechanics,dtarnita@yahoo.comDan Tarnita, Conf.dr., University of Medicine and Pharmacy, Department of Anatomy,dan_tarnita@yahoo.comNicu Bizdoaca, Prof.dr.eng., University of <strong>Craiova</strong>, Department of Mechatronics and Robotics,nicu@robotics.ucv.roPLASTIC DEFORMATION OF MATERIAL IN THE AREACUTTING PROCESSING THROUGH VIBROSPLINTERINGSMAT2008M14Bebe TICA Stefanita CIUNELAbstract. This paper <strong>de</strong>monstrates that the <strong>de</strong><strong>for</strong>mation of material in the area <strong>for</strong> the <strong>de</strong>ployment of chips byvibrosplintering fall into the simple pattern of <strong>de</strong><strong>for</strong>mation of the splinter, namely adiabatic shear.This pattern of distortion and low orează ef<strong>for</strong>t shearing unit, which leads to a reduced consumption of energy,so a atuu in addition to using ultrasonic vibrosplintering method of processing superfine, <strong>de</strong>monstrated in other worksby authors.Keywords: cutting process, vibrosplintering, splinter, mouldabilityBebe TICA - Ph.D. Associate Professor, Road Vehicle Department, Faculty of Mechanics,ticabebe@yahoo.comStefanita CIUNEL - Assistant Professor, Road Vehicle Department, Faculty of Mechanics,ciunelstefanita@yahoo.com61

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