X-ray TV Investigation of Stannum Penetration into the Steel Melt
A method has been developed and the X-ray TV investigation of penetrating spheric stannum samples into the steel melt 40X at 1550C has been carried out. It was revealed that the cold spheric particles of stannum with the weight of 1-2 g dissolve in steel, not containing stannum, with the initial rate of 180 ± 50 mol/(m<sup>2</sup>/sec). Full dissolution of the sample occurs less than in 2 sec. During the sample penetration on the boundary of steel with gas phase its dissolution slows in multiple times. At stannum content in steel of about 1.6- 1. 9 mol % the decomposition begins with two-phase system formation. The density of composition based on iron is less than the density of composition based on stannum. The stan- num is pure and a saturated iron solution in it wets better the heat-resistant ceramics based on Al<sub>2</sub>O<sub>3</sub> in comparison with the pure iron or the alloy with stannum.