THE EFFECTS OF CALCIUM TREATMENT ON THE SIZE AND NUMBER OF INCLUSIONS IN STEEL

Publication Date : 01/08/2009


Author(s) :

AGBOOLA, O. F.


Volume/Issue :
Volume 4
,
Issue 2
(08 - 2009)



Abstract :

The size and number of non-metallic inclusions in 3 medium carbon steel melts of 1kg each, treated 1J-4.3g and 5g of calcium were investigated Samples. measuring 10mm x 20mm were removed Ai the casts and polished. They were then subjected to optical microscopic examination and the /?; 5 and numbers of inclusions observed were recorded. Results obtained reveal that with increasing eimm addition, the maximum inclusion si4e.decreased .from 45 to 30 microns and the number of inclusions also reduced substantially. in addition, the Iota) nwnher of inclusions decteasedfroM . :7" in the sample treated with the lowest amount nice:kiwi, to 1,917 in she sample with the highest am of calcium.


No. of Downloads :

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