Influence of small additions of components on the character of their distribution in structural components of Cu-Sn system alloys
The research results on modification influence on distribution of Cu, Sn and different modifying elements in α-solid solution, eutectoid and electron compounds of variable composition are submitted. It is found that Ca reduces oxygen content in α-solid solution and eutectoid, but Zr, and especially Al, B and Ti add dissolved oxygen into the melt or in the form of elements oxides. Modification influences essentially the character of distribution of the main components and modifiers in various structural parts of tin bronze increasing liquation process of Sn and causes formation of isolated electron compounds of variable composition with modifying elements and oxygen.