THE INFLUENCE OF HOLDING TIME ON TEMPERATURE OF EUTECTIC ENDING, DURATION OF EUTECTIC TRANSFORMATION AND CHEMICAL COMPOSITION IN DUCTILE IRON

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SHEIKH ABDOLHOSSEIN A.; NILI AHMADABADI M.

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Journal: Year:2006 | Volume:39 | Issue:6 (94) Page(s): 821-829

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Title

THE INFLUENCE OF HOLDING TIME ON TEMPERATURE OF EUTECTIC ENDING, DURATION OF EUTECTIC TRANSFORMATION AND CHEMICAL COMPOSITION IN DUCTILE IRON

Author(s)

SHEIKH ABDOLHOSSEIN A. | NILI AHMADABADI M. | Issue Writer Certificate

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Abstract

In the present research, different trends of temperature of eutectic ending and duration of eutectic transformation due to employment of different combinations of five types of inoculants and four types of modularizes, with different fading resistances, were studied. Cooling curves and image analysis were used to characterize the influence of holding time, for 0, 5, 10, 15 and 20 min, on the samples prepared from the melt processed by 2.5 wt% modularize and 0.4 wt% inoculants and kept at 1320ºC under nitrogen atmosphere. Chemical composition of 20 samples out of 100 attained by the means of emission spectrometry. While the dominant graphite morphology is spherical or flake, by succeeding of the fading phenomenon, temperature of eutectic ending and duration of eutectic transformation respectively decrease, increase and decrease again. When there is a combination of spherical, compacted and flake graphite, the above results are reverse. As long as the main graphite morphology is spherical, Mg, S and Al content decrease by advancement of fading, nevertheless after this stage, Mg and Al content reach a steady state whereas S content slightly increases.

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APA: Copy

SHEIKH ABDOLHOSSEIN, A., & NILI AHMADABADI, M.. (2006). THE INFLUENCE OF HOLDING TIME ON TEMPERATURE OF EUTECTIC ENDING, DURATION OF EUTECTIC TRANSFORMATION AND CHEMICAL COMPOSITION IN DUCTILE IRON. JOURNAL OF FACULTY OF ENGINEERING (UNIVERSITY OF TEHRAN), 39(6 (94)), 821-829. SID. https://sid.ir/paper/14059/en

Vancouver: Copy

SHEIKH ABDOLHOSSEIN A., NILI AHMADABADI M.. THE INFLUENCE OF HOLDING TIME ON TEMPERATURE OF EUTECTIC ENDING, DURATION OF EUTECTIC TRANSFORMATION AND CHEMICAL COMPOSITION IN DUCTILE IRON. JOURNAL OF FACULTY OF ENGINEERING (UNIVERSITY OF TEHRAN)[Internet]. 2006;39(6 (94)):821-829. Available from: https://sid.ir/paper/14059/en

IEEE: Copy

A. SHEIKH ABDOLHOSSEIN, and M. NILI AHMADABADI, “THE INFLUENCE OF HOLDING TIME ON TEMPERATURE OF EUTECTIC ENDING, DURATION OF EUTECTIC TRANSFORMATION AND CHEMICAL COMPOSITION IN DUCTILE IRON,” JOURNAL OF FACULTY OF ENGINEERING (UNIVERSITY OF TEHRAN), vol. 39, no. 6 (94), pp. 821–829, 2006, [Online]. Available: https://sid.ir/paper/14059/en

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