On supercoaling of nickel alloy granules during recrystallization

On the example of heat resisting nickel base alloy of ZhS6K shown is a possibility of a considerable supercooling of the metal bath in the whole volume of the . grain, that leads to the alloy structure grinding at the following recrystallization. At the scanning electron microscope grain surfaces are investigated and the regularity of the size change of dendrite branches is shown. It is found that separate grains for parts of some grains possess considerably finer dendrite structure. It can be more reliably explained by preliminary supercooling of the metal bath in the whole volume of such a grain