Effect of Chemical Composition on Structure and Corrosion Resistance of Ni-Mn-Cu Cast Iron

• Autorzy: Medyński D. , Janus A.

Identyfikatory

DOI

10.1515/afe-2016-0050

• Języki publikacji: EN

Abstrakty

EN

In the paper, a relationship between chemical composition of Ni-Mn-Cu cast iron and its structure, hardness and corrosion resistance is determined. The examinations showed a decrease of thermodynamic stability of austenite together with decreasing nickel equivalent value, in cast iron solidifying according to both the stable and the metastable systems. As a result of increasing degree of austenite transformation, the created martensite caused a significant hardness increase, accompanied by small decline of corrosion resistance. It was found at the same time that solidification way of the alloy and its matrix structure affect corrosion resistance to a much smaller extent than the nickel equivalent value, in particular concentration of elements with high electrochemical potential.

Słowa kluczowe

EN

corrosion; martensitic transformation; austenitic cast iron; Ni-Mn-Cu cast iron; nickel equivalent

PL

korozja; przemiana martenzytyczna; żeliwo austenityczne; żeliwo Ni-Mn-Cu

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2016
• Tom: Vol. 16, iss. 3
• Strony: 59--62
• Opis fizyczny: Bibliogr. 6 poz., il., tab.

Twórcy

autor

Medyński D.

• Witelon State University of Applied Science in Legnica, Department of Technical and Economic Sciences, Sejmowa 5A, 59-220 Legnica, Poland

autor

Janus A.

• Wroclaw University of Technology, Mechanical Faculty, Department of Foundry Engineering, Plastics and Automation, Smoluchowskiego 25, 50-372 Wrocław, Poland

Bibliografia

• [1] Guzik, E. (2006). Selected issues of forming structure and properties of ausferritic cast iron. Archives of Foundry. 6(21), 33-42. (in Polish).
• [2] Janus, A. (2013). Forming structures of castings of austenitic Ni-Mn-Cu cast iron. Wrocław: Ed. by WrUT. (in Polish).
• [3] Podrzucki, Cz. (1991). Cast iron. Structure, properties and application. Vol. 2. Kraków: Ed. ZG STOP. (in Polish).
• [4] Janus, A. & Kurzawa, A. (2013). Effect of nickel equivalent on austenite transition ratio in Ni-Mn-Cu cast iron. Archives of Foundry Engineering. 13(2), 53-58.
• [5] Hryniewicz, T. (2005). Electrochemistry for surface engineering. Koszalin: Ed. KUT. (in Polish).
• [6] Cheng-Hsun, H., Ming-Li, C. (2010). Corrosion behavior of nickel alloyed and austempered ductile iron in 3% sodium chloricum. Corrosion Science. 52, 2945-2949.

Uwagi

PL

Opracowane ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.