General Regularities of Formation of the ω-phase in Binary Titanium-base Alloys with Metals of Ⅳ-Ⅷ,Ⅰ Groups of the Periodic Table

摘要

The conditions of formation of the arphase in binary titanium-base alloys with metals of Ⅳ-Ⅷ,Ⅰ groups of the Periodic Table were studied depending on both type and contents of alloying metal in the alloy. It is established that the arphase forms in all binary titanium alloys of Ⅳ-Ⅷ groups of 4-6 periods. For the first time formation of the arphase is revealed in systems Ti-Rh, Ti-Re, Ti-Os, Ti-Ir, and Ti-Pt. The change of morphology of the arphase depending on the position of alloying metal in the Periodic Table was studied. It was shown that minimal concentration boundary of the urphase formation defined by position of the Mf lines at room temperature.