Open AccessМартенситные превращения сплавов на основе никелида титана с разными легирующими добавками
Author(s) -
Е.С. Марченко,
Г.А. Байгонакова,
В.Э. Гюнтер,
А.А. Клопотов
Publication year - 2020
Publication title -
žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-748X
pISSN - 0044-4642
DOI - 10.21883/jtf.2020.05.49177.342-18
Subject(s) - materials science , niobium , vanadium , diffusionless transformation , martensite , metallurgy , phase (matter) , crystallography , microstructure , chemistry , organic chemistry
Investigations of the martensitic transformations of TiNi-based alloys grade TN-10, doped with 1 at.% V, Nb, Ag, were presented. It was shown that alloying elements (Ag, Nb, V) cause an increase in internal elastic stresses inside the crystalline structure of the B2 phase, which leads to an increase in the beginning temperature of direct martensitic transformation. Of the selected alloying elements, vanadium has a significant effect on this temperature, shifting it to the region of high values by ~ 45 ° C. In alloys with vanadium and silver, a complex sequence of martensitic transformations B2-> R-> B19 'is realized, and in alloys with niobium, a simple B2-> B19' is realized.