Possibilities of biocompatible material production using conform SPD technology

• Autorzy: Palán J. , Maleček L. , Hodek J. , Zemko M. , Dzugan J.

Identyfikatory

DOI

10.5604/01.3001.0010.7746

• Języki publikacji: EN

Abstrakty

EN

Purpose: At present, materials research in the area of SPD (severe plastic deformation) processes is very intensive. Materials processed by these techniques show better mechanical properties and have finer grain when compared to the input feedstock. The refined microstructure may be ultrafine-grained or nanostructured, where the grain size becomes less than 100 nm. One of the materials used for such processes is CP (commercially pure) titanium of various grades, which is widely used for manufacturing dental implants. The article deals with one of the technologies available for the production of ultrafine-grained titanium: Conform technology. CP titanium processed by CONFORM technology exhibits improved mechanical properties and very favourable biocompatibility, due to its fine-grained structure. The article presents the current experience in the production of ultrafine CP titanium using this technology. The main objective of this article is describing the behaviour of CP titanium during forming in the Conform device and its subsequent use in dental implantology. Design/methodology/approach: In the present study, commercially pure Grade 2 titanium was processed using the CONFORM machine. The numerical simulation of the process was done using FEM method with DEFORMTM software. The evaluation was performed by simple tensile testing and transmission electron microscopy. The first conclusions were derived from the determined mechanical properties and based on analogies in available publications on a similar topic. Findings: This study confirmed that the SPD process improves mechanical properties and does not impair the ductility of the material. The CONFORM process enables the continuous production of ultrafine-grained or nanostructured materials. Research limitations/implications: At the present work, the results show the possible way of continuous production of ultrafine-grained or nanostructured materials. Nevertheless, the further optimization is needed in order to improve the final quality of wires and stabilize the process. As these factors will be solved, the technology will be ready for the industry. Practical implications: The article gives the practical information about the continuous production of ultrafine-grained pure titanium Grade 2 and the possibility of use this material for dental implants. Originality/value: The present paper gives information about the influence of the CONFORM technology on final mechanical and structural properties with the emphasis on technological aspects.

Słowa kluczowe

EN

CONFORM; ECAP; titanium; dental implants

PL

CONFORM; ECAP; tytan; implanty stomatologiczne

• Wydawca: International OCSCO World Press
• Czasopismo: Archives of Materials Science and Engineering
• Rocznik: 2017
• Tom: Vol. 88, nr 1
• Strony: 5--11
• Opis fizyczny: Bibliogr. 17 poz.

Twórcy

autor

Palán J.

• COMTES FHT a.s., Průmyslová 995, Dobřany 334 41, Czech Republic

autor

Maleček L.

• COMTES FHT a.s., Průmyslová 995, Dobřany 334 41, Czech Republic

autor

Hodek J.

• COMTES FHT a.s., Průmyslová 995, Dobřany 334 41, Czech Republic

autor

Zemko M.

• COMTES FHT a.s., Průmyslová 995, Dobřany 334 41, Czech Republic

autor

Dzugan J.

• COMTES FHT a.s., Průmyslová 995, Dobřany 334 41, Czech Republic

Bibliografia

• [1] R.Z. Valiev, T.G. Langdon, Achieving Exceptional Grain Refinement through Severe Plastic Deformation: New Approaches for Improving the Processing Technology, Metallurgical and Materials Transactions A 42/10 (2011) 2942-2951.
• [2] A. Azushima, R. Kopp, A. Korhonen, DY. Yang, F. Micari, G.D. Lahoti, P. Groche, J. Yanagimoto, N. Tsuji, A. Rosochowski, A. Yanagida, Severe plastic deformation (SPD) processes for metals, CIRP Annals - Manufacturing Technology 57/2 (2008) 716-735, DOI: 10.1016/j.cirp.2008.09.005.
• [3] M. Zemko, T. Kubina, J. Dlouhy, J. Hodek, Technological aspects of preparation of nanostructured tita¬nium wire using a CONFORM machine, IOP Conference Series: Materials Science and Engineering 63 (2014) 012049, DOI: 10.1088/1757-899X/63/1/ 012049.
• [4] M. Duchek, T. Kubina, J. Hodek, J. Dlouhy, Development of the production of ultrafine-grained titanium with the conform equipment, Materials and Technology 47/4 (2013) 515-518.
• [5] S. Xu, G. Zhao, X. Ren, Y. Guan, Numerical investigation of aluminium deformation behaviour in three-dimensional continuous confined strip shearing process, Materials Science and Engineering A 476/1-2 (2008) 281-289, DOI: 10.1016/j.msea.2007.05.003.
• [6] J.R. Cho, H.S. Jeong, Parametric investigation on the curling phenomenon in CONFORM process by three-dimensional finite element analysis, Journal of Materials Processing Technology 110/1 (2001) 53-60, DOI: 10.1016/S0924-0136(00)00658-0.
• [7] J. Hodek, T. Kubina et al, FEM Model of Continuous Extrusion of Titanium in Deform Software, "COMAT 2012", Pilsen, 2012.
• [8] G.I. Raab, A.W. Polyakov et al, Formation of a nano-structure and properties of titanium rods during equal-channel angular pressing CONFORM followed by drawing, Russian Metallurgy 5 (2009) 416-420.
• [9] D.V. Gunderov, A.W. Polyakov et al, Evolution of microstructure, macrotexture and mechanical properties of commercially pure Ti during ECAP-conform processing and drawing, Materials Science and Engineering A 562 (2013) 128-136, DOI: 10.1016/j.msea. 2012.11.007.
• [10] A.W. Polyakov, LP. Semenova G.I. Raab, V.D. Sit-dikov, R.Z. Valie, Peculiarities of ultrafine grained structure formation in Ti Grade-4 using ECAP-Conform, Reviews on Advanced Materials Science 31 (2012) 78-84.
• [11] L. Ostrovska, L. Vistejnova, J. Dzugan, P. Slama, T. Kubina, E. Ukraintsev, D. Kubies, M. Kralickova, M. Kalbacova, Biological evaluation of ultra-fine titanium with improved mechanical strength for dental implant engineering, Journal of Materals Science 23/6 (2015) 3097-3110, DOI: 10.1007/sl0853-015-9619-3.
• [12] D.M. Brunette, P. Tengval, M. Textor, P. Thomsen, Titanium in Medicine, Springer-Verlag, Berlin, Heidelberg, 2001, ISBN 978-3-642-63119-1.
• [13] J. Petruźelka, L. Dluhoś et al, Nanostrukturni titan -novy material pro dentalni implantaty, Ceska Stomatologie 106/3 (2006) 72-77.
• [14] R.Z. Valiev, LP. Semenova et al, Nanostructured Titanium for Biomedical Applications, Advanced Engineering Materials 10/8 (2008) 1-4.
• [15] L. Dluhoś et al, Nanostrukturni titan v detain! implan¬tologii, 1. KONGRES biomediciny v oromaxilo-facialnej oblasti, Zbornik referatov, EQUILIBRIA, s.r.o. Kosice, Slovakia, 2009, 299-304, ISBN 978-80-89284-37-5.
• [16] D. Hruśak, M. Zemko et al, Usage of nanostructured titanium for endosteal implants, NANOCON 2009, TANGER Ltd., Roznov pod Radhostem, The Czech Republic, 2009, ISBN 978-80-87294.
• [17] T. Kubina, J. Dlouhy, M. Kover, M. Domankova, J. Hodek, Preparation and thermal stability of ultra-fine and nano-grained commercially pure titanium wires using conform equipment, Materials and Technology 49/2 (2015) 213-217, DOI: 10.17222/mit. 2013.226.

Uwagi

PL

Opracowanie w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018)