Mechanical properties and corrosion behaviour of 18Cr-11Ni-2,5Mo cast steel

• Autorzy: Kalandyk B. , Starowicz M.
• Języki publikacji: EN

Abstrakty

EN

The study discusses the effect of variable carbon concentration (0,02; 0,07 and 0,14%) on the mechanical properties and corrosion resistance in 3,0% NaCl solution of 18Cr-11Ni-2,5Mo austenitic cast steel. It has been proved that at the concentration of 0,07%C, products made of the examined cast steel reveal on their surface some symptoms of local corrosion. Carbon concentration raised to 0,14%C results in advanced intercrystalline corrosion and the onset of local corrosion. Carbon concentration increased from 0,02 to 0,14% also results in the tensile strength UTS raised from 487MPa to 579MPa (a nearly 20% increase) with elongation El reduced from 55,3% to 49,6%, and reduction of area RA from 69,3% to 53,4%.

Słowa kluczowe

EN

stainless cast steel Cr-Ni; mechanical properties; electrochemical corrosion

PL

staliwo nierdzewne; właściwości mechaniczne; korozja elektrochemiczna

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2009
• Tom: Vol. 9, iss. 4
• Strony: 87--90
• Opis fizyczny: Bibliogr. 10 poz., rys., tab., wykr.

Twórcy

autor

Kalandyk B.

autor

Starowicz M.

• Department of Cast Alloys and Composites Engineering, Faculty of Foundry Engineering, AGH University of Science and Technology, 23 Reymonta Str., 30-059 Kraków, Poland,

Bibliografia

• [1] Leksykon materiałoznawstwa pod redakcją L. Dobrzańskiego; Verlag Dashofer, Warszawa (2009).
• [2] A. J. Sedriks, Corrosion of stainless steel, 2nd Ed., New York, NY Wiley, (1996).
• [3] CASTI Handbook of Stainless steel and nickiel alloys; vol 2, Canada (2001).
• [4] D. Landolt, Corrosion and surface chemistry of metals. Lausanne: EPFL Press, (2007).
• [5] H. Krawiec, The characteristic of Corrosion Processes of heterogeneous metallic alloys at micro and macro-scale, dissertations monographs, AGH, Kraków (2009).
• [6] M. Pohl, VDI Berichte, No 1150, (1994).
• [7] V. Vignal, J. M. Olive, D. Desjardins, Effect of molybdenum on passivity of stainless steels in chloride media using ex situ near field microscopy observations, Corrosion Science 41 (1999) 869-884.
• [8] Pardo, M. C. Merino, A. E. Coy, F. Viejo, R. Arrabal, E. Matykina, Pitting corrosion behaviour of austenitic stainless steels - combining effects of Mn and Mo additions, Corrosion Science, vol. 50, No. 6 (2008), pp. 1796-1806.
• [9] B. Kalandyk, K. Kostrzewa, R. Zapała, Influence of an austenitic temperature on the mount of ferrite delta and carbides in Cr-Ni-Mo cast steel, Przegląd Odlewnictwa vol. 59, No3 (2009) 126-131.
• [10] Praca naukowo - badawcza, Wydz. Odlewnictwa AGH, Kraków 2009.