Powiadomienia systemowe
- Sesja wygasła!
- Sesja wygasła!
Tytuł artykułu
Wybrane pełne teksty z tego czasopisma
Identyfikatory
Warianty tytułu
Języki publikacji
Abstrakty
The corrosion behaviour of the AlSi6Cu4 alloy as a composite matrix and of composites with 8% vol. of graphite particles was investigated. The corrosion experiments were performed over a range of elevated temperatures and were carried out in sea water (3.5% NaCl solution). We have focused our attention to the determination of the mode of corrosion attack and to the determination of the rate of corrosion and other corrosion characteristics. Both as-cast and annealed matrix and composite specimens were tested, as well as the 99.9% as-cast aluminium for comparison. Corrosion behaviour of the materials was assessed by the corrosion potential (Ec) and by potentiodynamic (polarization) curves. As expected, composite is less corrosion resistant than the matrix alloy. In addition to pitting, a severe galvanic corrosion occurs as a result of galvanic couple aluminium/graphite formation. Corrosion potentials imply that examined materials would be sufficiently resistant in non or slightly oxidizing solutions without dissolved oxygen. All studied materials corrode very slowly at potentials negative to corrosion potential, while at potentials positive to corrosion potential the corrosion rate goes up by 1 or 2 orders.
Czasopismo
Rocznik
Tom
Strony
65--68
Opis fizyczny
Bibliogr. 12 poz., wykr.
Twórcy
autor
autor
autor
autor
autor
autor
- Department of Foundry, Technical University of Częstochowa, ul. Armii Krajowej 19, 42-200 Częstochowa, Poland, konopka@mim.pcz.czest.pl
Bibliografia
- [1] Gabrylewski M., Patejuk A., Composite materials with metal matrix, Materials Engineering, No 6 (1997) (in Polish).
- [2] Greene H. J., Mansfeld F., Corrosion Protection of Aluminium Metal-Matrix Composites, Corrosion, vol. 53, No 12 (1997) 920-927.
- [3] Lindroos V., Talvitie M., Recent Advances in Metal Matrix Composites, Journal of Materials Processing Technology, vol. 53 (1995) 273-284.
- [4] Modi O., Saxena M., Prasad B., Jha A., Das S., Yegneswaran A., Role of Alloy Matrix and Dispersioid on Corrosion Behaviour of Cast Aluminium Alloy Composites, Corrosion vol. 54, No 2 (1998) 129-134.
- [5] Staronka A., Holtzer M., Piekarska M., Principles of physical chemistry of metallurgical and foundry processes, Ed. AGH, Cracow (1997) (in Polish).
- [6] Hihara L. H., Latanision R. M., Galvanic Corrosion of Aluminium-Matrix Composites, Corrosion, vol. 48, No 7 (1991) 546-552.
- [7] Bieniaś J., Surowska B., Aluminium Matrix Composites-Microstructural and Corrosion Characteristics, European Congress and Advanced Materials and Processes EUROMAT 2003, programme p. 63, 1, Lausanne (2003).
- [8] Kiourtdidis G., Skolianos S., Corrosion Behavior of Squeeze-Cast Silicon Carbide-2024 Composites in Aerated 3.5 wt% Sodium Chlorid, Materials Science and Enginering, vol. A248 (1998) 165-172.
- [9] Nunes P., Ramanathan L., Corrosion Behavior of Alumina-Aluminium and Silicon Carbide-Alumnium, Metal-Matrix Composites, vol. 51, No 8 (1995) 610-617.
- [10] Bieniaś J., Surowska B.: Corrosion behaviour of 359-SiC patricle composite, KOMPOZYTY (COMPOSITES), vol. 3, No 8 (2003).
- [11] Hyjek P., Kurtyka P., Wierzbiński S., Krawiec H.: Corrosion resistance of composite based on Al-Zn-Mg alloy reinnforced with Al2O3 particles, KOMPOZYTY (COMPOSITES), vol. 5, No 2 (2005).
- [12] Bieniaś J., Surowska B., The Influence of Graphite Particles on Corrosion Behaviour of A356/Grp Aluminium Composite, Materials Engineering (2004).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BPZ1-0063-0015