Effect of age hardening on corrosion resistance and hardness of CoCrMo alloys used in dental engineering

• Autorzy: Dobrzański L. , Reimann Ł. , Krawczyk C.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The goal of the study is to research the effect of various time of ageing on corrosion resistance, hardness and structures of Remanium 2000+ Co-Cr-Mo alloys used in prosthodontia. Design/methodology/approach: To investigation was prepared mould, cast in 1430°C and realized the heat treatment: solutioning in 1250°C by 3 hours and then ageing in 850°C by 4, 8, 16 and 24 hours. Electrochemical corrosion examination were made in water center which simulated artificial saliva environment. The evaluation of breakdown potential was realized by recording of anodic polarization curves with use the potentiodynamic methods. Corrosion resistance test were carried out at room temperature and use of the VoltaLabŽ PGP201 system for electrochemical tests. Hardness test were obtained by use the microhardness FM ARS 9000 FUTURE TECH with load 1 kg. Structure observation was made after surface preparation: grinding, polishing and etching by light microscope LEICA MEF4A with the magnification 500x. Findings: The age hardening for Co-Cr-Mo alloys is one of the possible method which effect in forming the hardness. The highest value of hardness were obtain for specimen which was ageing with the longer time. Research alloy characterized dendritic crystals in structure for all realized heat treated process. At specimen after the longer ageing was observed the most of discontinuous precipitation and stacking faults in compare with specimen ageing by 4 hours. The age hardening doesn’t influenced much on electrochemical results and only the open circuit potential changed by decreased while increased ageing time. The values of breakdown potential and repassivation potential kept at a constant level. Practical implications: Research material is used on dentures so it’s demand that their characterized corrosion resistance and result of this work make up an information on what heat treatment parameters may be pay attention for CoCrMo alloys. Originality/value: The paper present effect of age hardening especially the ageing time, on the most important criteria of CoCrMo alloys use in dental engineering.

Słowa kluczowe

EN

biomaterials; corrosion; Co-Cr-Mo alloys; age hardening; prosthodontia

PL

biomateriały; korozja; stopy CoCrMo; utwardzanie przez starzenie

• Wydawca: International OCSCO World Press
• Czasopismo: Archives of Materials Science and Engineering
• Rocznik: 2012
• Tom: Vol. 57, nr 1
• Strony: 5--12
• Opis fizyczny: Bibliogr. 25 poz.

Twórcy

autor

Dobrzański L.

autor

Reimann Ł.

autor

Krawczyk C.

• Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland,

Bibliografia

• [1]. Ł. Reimann, L.A. Dobrzański, Microstructure and hardness of base coblat alloys used in dentistry engineering, Works of XXXIX Materials Engineering School, Monograph, J. Pacyna (Ed.), Cracow-Krynica, 2011, 198-202 (in Polish).
• [2]. D.M. Sarantopoulos, K.A. Beck, R. Holsen, D. W. Berzins, Corrosion of CoCr and NiCr dental alloys alloyed with palladium, The Journal of Prosthetic Dentistry 105/1 (2011) 35-43.
• [3]. L.A. Dobrzański, Metallography of non ferrous metals alloys, The Silesian University of Technology Publishing, Gliwice, 2007 (in Polish).
• [4]. J.C. Wataha, Biocompatibility of dental casting alloys, A review, The Journal of Prosthetic Dentistry 83/2 (2000) 223-234.
• [5]. W. Walke, Z. Paszenda, J. Tyrlik-Held, Corrosion resistance and chemical composition investigations of passive layer on the implants surface of Co-Cr-W-Ni alloy, Journal of Achievements in Materials and Manufacturing Engineering 16 (2006) 74-79.
• [6]. L.A. Dobrzański, A.J. Nowak, W. Błażejewski, R. Rybczyński, Non-standard test methods for long-fibrous reinforced composite materials, Archives of Materials Science and Engineering 47/1 (2011) 5-10.
• [7]. M. Sharma, A.V. Ramesh Kumar, N. Singh, N. Adya, B. Saluja, Electrochemical corrosion behavior of dental/implant alloys in artificial saliva, Journal of Materials Engineering and Performance 17/5 (2008) 695-701.
• [8]. D. Mareci, D. Sutiman, A. Cailean, G. Bolat, Comparative corrosion study of Ag-Pd and Co-Cr alloys used in dental applications, Bulletin of Materials Science 33/4 (2010) 491-500.
• [9]. T. Matkovic, P. Matkovic, J. Malina, Effects of Ni and Mo on the microstructure and some other properties of Co-Cr dental alloys, Journal of Alloys and Compounds 366/1-2 (2004) 293-297.
• [10]. L.A. Dobrzański, Ł. Reimann, Influence of Cr and Co on hardness and corrosion resistance CoCrMo alloys used on dentures, Journal of Achievements in Materials and Manufacturing Engineering 49/2 (2011) 193-199.
• [11]. A. Karaali, K. Mirouh, S. Hamamda, P. Guiraldenq, Microstructural study of tungsten influence on Co-Cr alloys, Materials Science and Engineering A 390/1-2 (2005) 255-259.
• [12]. T. Tański, K. Labisz, L.A. Dobrzański, Effect of Al additions and heat treatment on corrosion properties of Mg-Al based alloys, Journal of Achievements in Materials and Manufacturing Engineering 44/1 (2011) 64-72.
• [13]. A. Kurc, M. Kciuk, M. Basiaga, Influence of cold rolling on the corrosion resistance of austenitic steel, Journal of Achievements in Materials and Manufacturing Engineering 38/2 (2010) 154-162.
• [14]. L.A. Dobrzański, B. Tomiczek, M. Adamiak, Manufacturing of EN AW6061 matrix composites reinforcedby halloysite nanotubes, Journal of Achievements in Materials and Manufacturing Engineering 49/1 (2011) 82-89.
• [15]. L.A. Dobrzański, Ł. Reimann, G. Krawczyk, Influence of the ageing on mechanical properties of the aluminium alloy AlSi9Mg, Archives of Materials Science and Engineering 31/1 (2008) 37-40.
• [16]. J.R. Dabrowski, M. Gradzka-Dahlke, The heat treatment of cast cobalt alloys used in dental prostheses, Scientific Papers of Kielce University of Technology, Mechanics 72 (2000) 409-414 (in Polish).
• [17]. H.R. Lashgari, S. Zangeneh, F. Hasanabadi, M. Saghaf, Microstructural evolution during isothermal aging and strain-induced transformation followed by isothermal aging in Co-Cr-Mo-C alloy, A comparative study, Materials Science and Engineering A 527/16-17 (2010) 4082-4091.
• [18]. S. Zangeneh, H.R. Lashgari, M. Saghafi, M. Karshenas, Effect of isothermal aging on the microstructural evolution of Co-Cr-Mo-C alloy (Original Research Article), Materials Science and Engineering A 527/24-25 (2010) 6494-6500.
• [19]. H.R. Lashgari, S. Zangeneh, M Ketabchi, Isothermal aging effect on the microstructure and dry sliding wear behavior of Co-28Cr-5Mo-0.3C alloy, Journal of Materials Science 46/22 (2011) 7262-7274.
• [20]. S. Zangeneh, H.R. Lashgari, A. Roshani, Microstructure and tribological characteristics of aged Co-28Cr-5Mo-0.3C alloy, Materials and Design 37 (2012) 292-303.
• [21]. C. Montero-Ocampo, R. Juarez, A. Salinas Rodriguez, Effect of fcc-hcp phase transformation produced by isothermal aging on the corrosion resistance of a Co-27Cr-5Mo-0.05C alloy, Metallurgical and Materials Transactions A 33/7 (2002) 2229-2235.
• [22]. J. Kasperski, J. Żmudzki, G. Chladek, Denture foundation tissues loading criteria in evaluation of dentures wearing characteristics, Journal of Achievements in Materials and Manufacturing Engineering 43/1 (2010) 324-332.
• [23]. J. Żmudzki, G. Chladek, J. Kasperski, Silicone attachment for avoidance of bone tissue overloading in single implant-retained denture, Archives of Materials Science and Engineering 51/2 (2011) 107-115.
• [24]. W. Chladek, G. Chladek, M. Wrzus-Wielinski, J. Żmudzki, Examinations on retention of overdentures with elastic frictional attachments, Journal of Achievements in Materials and Manufacturing Engineering 43/1 (2010) 205-213.
• [25]. J. Kasperski, G. Chladek, J. Żmudzki, The effect of saturation by artificial saliva on the effectiveness of denture adhesives, Archives of Materials Science and Engineering 51/1 (2011) 25-32.