Castability and Structure of Dental Alloys on a Nickel Base

• Autorzy: Zyska A. , Konopka Z. , Łągiewka M. , Kordas P.

Identyfikatory

DOI

10.24425/118827

• Języki publikacji: EN

Abstrakty

EN

The results of castability and structures researches of two nickel base alloys - Ceranium CN and Magnum AN applied on casting of the crowns and dental bridges are presented. Studies were carried out on the alloys cast under the centrifugal force to the moulds made by the lost wax method using production line of ROKO. Having regard to a specific technology of casting and possibility of ROKO production line, to the estimation of alloys castability a spiral test was adjusted with a 0,8 mm and a 2,5 mm diameter of test casting. Measuriements executed on a 20 test castings allowed to establish, that castability of Magnum AN alloy was 65 % greater than castability of Ceranium NC alloy. The results of thermodynamics calculations of the equilibrium and nonequilibrium crystallization (Scheil model) of the investigated alloys are presented too. The characteristic temperatures of phase transformation and forecast phase composition of alloys for both kind of crystallization were calculated. It is established after structural supervisions, that the investigated alloys crystallize in dendryte form and in centrifugal casting conditions have cooling rate sensivity and inclination to texture structure forming in outmost layer of casting. Phase composition of alloys corresponds to the results of thermodynamics calculations of the nonequilibrium crystallization conditions.

Słowa kluczowe

EN

dental alloys; centrifugal casting; castability; nickel alloys

PL

stopy dentystyczne; odlewanie odśrodkowe; lojalność; stopy niklu

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2018
• Tom: Vol. 18, iss. 1
• Strony: 139--144
• Opis fizyczny: Bibliogr. 24 poz., rys., tab., wykr.

Twórcy

autor

Zyska A.

• Czestochowa University of Technology, Foundry Department, Częstochowa, Poland

autor

Konopka Z.

• Czestochowa University of Technology, Foundry Department, Częstochowa, Poland

autor

Łągiewka M.

• Czestochowa University of Technology, Foundry Department, Częstochowa, Poland

autor

Kordas P.

• Czestochowa University of Technology, Foundry Department, Częstochowa, Poland

Bibliografia

• [1] Surowska, B. (2009). Metal biomaterials and metal-ceramic combinations for dental applications. Lublin: Lublin University of Technology. (in Polish).
• [2] Majewski, S. (2000). Fundamentals of prosthetics in medical practice and technique dental. Krakow: Dental Publishing House SZS-W.
• [3] Association ANSI/ADA (2005). Specification For Biological Evaluation of Dental Materials. American Dental Association.
• [4] Karaali, A., Mirouh, K., Hamamda, S. & Guiraldenq, P. (2005). Microstructural study of tungsten influence on Co–Cr alloys. Materials Science and Engineering A. 390, 255-259.
• [5] Carreiro, A.F. (2005). Evaluation of the castability of a Co-Cr-Mo-W alloy varying the investing technique. Brazilian Dental Journal. 16(1), 50-55.
• [6] Karakose, E. & Keskin, M. (2015). Effect of microstructural evolution and elevated temperature on the mechanical properties of Ni-Cr-Mo alloys. Journal of Alloys and Compounds. 619, 82-90.
• [7] Saji, V.S. & Choe, H.-Ch. (2009). Electrochemical behavior of Co-Cr and Ni-Cr dental cast alloys. Transaction Nonferrous Metals Society China. 19, 785-790.
• [8] Chen, W.Ch., Teng, F.Y. & Hung, Ch.Ch. (2014). Characterization of Ni–Cr alloys using different casting techniques and molds. Materials Science and Engineering C. 35, 231-238.
• [9] Eftekhari, A. (2003). Fractal study of Ni–Cr–Mo alloy for dental applications: effect of beryllium. Applied Surface Science. 220, 343-348.
• [10] Matkovi´c, T., Matkovi´c, P. & Malina, J. (2004). Effects of Ni and Mo on the microstructure and some other properties of Co–Cr dental alloys. Journal of Alloys and Compounds. 366, 293-297.
• [11] Henriques, B., Soares, D. & Silva, F.S. (2012). Microstructure, hardness, corrosion resistance and porcelain shear bond strength comparison between cast and hot pressed CoCrMo alloy for metal-ceramic dental restorations. Journal of the Mechanical Behavior of Biomedical Materials. 12, 83-92.
• [12] Koeck, B. (2000). Crowns and bridges. Wroclaw: Medical Publishing House Urban & Partner. (in Polish).
• [13] Majewski, S.W. (2005). Reconstruction of the teeth with permanent restorations. Krakow: Prosthodontics Publishing House. (in Polish).
• [14] Zhang, Y. & Kelly, J.R. (2017). Dental Ceramics for Restoration and Metal Veneering. Dental Clinics of North America. 61, 797-819.
• [15] Kohorst, Ph. Dittmer, M. Ph. & Stiesch, M. (2013). Enhancement of the adhesion between cobalt-base alloys and veneer ceramic by application of anoxide dissolving primer. Dental Materials. 29, 1295-1302.
• [16] Gołębiewska, M. (2003). Prosthetic materials. Białystok: AMB Department of Dentistry. (in Polish).
• [17] Dąbrowa, T. & Panek, H. (2004). Galwanoforming in dental prosthetics. Dental and Medical Problems. 41(3), 527-530.
• [18] Surowska, B., Beer, K., Borowicz, J. & Veremchuk, I. (2011). The influence of casting technologies on quality of dental cobalt alloy. Advances in Science and Technology. 11, 81-88.
• [19] Komorek, Z., Jóźwiak, S. & Kuchta, M. (2006). The influence of production conditions on the strength of Co-Cr-Mo-C stomatology alloy. Archives of Foundry. 18(6), 279-282.
• [20] Fraunhofer, J.A. (2010). Dental Materials at a Glance. Willey-Blackwell.
• [21] Koudi, M.S., Patil, S.B. (2007). Dental Materials: Prep Manual for Undergraduates. Elsevier India.
• [22] Polak, A. (2005). Theoretic basis and practical guidance on founding. Modern Dental Technician. 2, 28-36. (in Polish).
• [23] Raszewski, Z. (2006). Problems during metal casting process - part I. Modern Dental Technician. 4, 36-37. (in Polish).
• [24] Craig, R.G. Powers, J.M., Wataha, J.C. (2000). Dental Materials. Wroclaw: Medical Publishing House Urban & Partner. (in Polish).

Uwagi

PL

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