Effect of alloying elements on branching of primary austenite dendrites in Ni-Mn-Cu cast iron

• Autorzy: Janus A.
• Języki publikacji: EN

Abstrakty

EN

Within the research, determined were direction and intensity of influence of individual alloying elements on branching degree of primary austenite dendrites in austenitic cast iron Ni-Mn-Cu. 30 cast shafts dia. 20 mm were analysed. Chemical composition of the alloy was as follows: 2.0 to 3.3 % C, 1.4 to 3.1 % Si, 2.8 to 9.5 % Ni, 0.4 to 7.7 % Mn, 0 to 4.6 % Cu, 0.14 to 0.16 % P and 0.03 to 0.04 % S. Analysis was performed separately for the dendrites solidifying in directional and volumetric way. The average distance "x" between the 2nd order arms was accepted as the criterion of branching degree. It was found that influence of C, Si, Ni, Mn and Cu on the parameter "x" is statistically significant. Intensity of carbon influence is decidedly higher than that of other elements, and the influence is more intensive in the directionally solidifying dendrites. However, in the case of the alloyed cast iron Ni-Mn-Cu, combined influence of the alloying elements on solidification course of primary austenite can be significant.

Słowa kluczowe

EN

primary austenite; solidification; austenitic cast iron; Ni-Mn-Cu cast iron

PL

austenit pierwotny; krzepnięcie; żeliwo austenityczne; żeliwo Ni-Mn-Cu

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2011
• Tom: Vol. 11, iss. 2
• Strony: 51--54
• Opis fizyczny: Bibliogr. 10 poz., rys., tab., wykr.

Twórcy

autor

Janus A.

• Foundry and Automation Group, Institute of Machine Engineering and Automation, Wroclaw University of Technology Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland,

Bibliografia

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