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The influence of cerium mixture addition on the structure of cast iron containing about of 5% aluminium

Soiński M. S., Góraj J.

Archives of Foundry Engineering

2009

Vol. 9, iss. 4

215-218

The paper presents the influence of the treatment with cerium mixture and postinoculation with ferrosilicon on the structure of cast iron containing about 5% of aluminium. Rod samples of three different diameters (10 mm, 20 mm, 30 mm) have been examined. The desired test samples have been cast directly after modification, then 5 minutes after, and then 10 minutes after that treatment, to assess the relationship between treatment efficiency and time. It has been found that the introducing about 0.14% of cerium mix into the aluminium cast iron has resulted in occurring the nodular graphite precipitates accompanied by chunky-type graphite in the alloy.