[Kovove materialy - Metallic materials]
    Tue - April 20, 2021 - 12:53 No. of hits : 1250249 ISSN 1338-4252 (online) ISSN 0023-432X (printed)
© Institute of Materials and Machine Mechanics, Slovak Academy of Sciences, Bratislava, Slovak Republic

VOLUME 59 (2021), Issue 1

Evolution of inoculation thermal analysis and solidification morphology of compacted graphite iron
AI, S., XU, Z., LIU, Z., SONG, H., WANG, A., ZHANG, L., HAN, Z., GAO, G., LI, D., SHI, D.
vol. 59 (2021), no. 1, pp. 51 - 57

Abstract
This paper describes one possible thermal analysis method to anticipate and control the inoculation effect during the solidification of CGI melt. Results show that 0.10–0.45 % ferrosilicon inoculation in the sample cup can promote the solidification morphology of the melt to evolve from hypoeutectic to eutectic or even low hypereutectic. With the stepwise more inoculant additions, the minimum eutectic temperature difference for the two stepwise additions decreases. The inoculation saturation value is basically reached in the 0.30 % inoculant sample cup, of which the minimum eutectic temperature increase is 5.3 °C compared with that of the original melt. When inoculated, the carbon potential and eutectic inoculation potential of the melt are improved. At 0.45 % inoculant, the melt can solidify in the form of low hypereutectic. In this case, the nodularity rate increases significantly to 34 %, and large particles of graphite nodule appear.

Key words
CGI, inoculation effect, thermal analysis evaluation, cooling curve pattern, solidification characteristics

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Full title of this journal is bilingual: Kovové materiály - Metallic Materials.
The official abbreviation in accordance with JCR ISI is Kovove Mater.


Article abstracts updated: 2021-03-15 11:36      
Articles in press revised: 2021-04-12 10:59     
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