Open AccessОсобенности полиморфного превращения в титане
Author(s) -
Л.В. Спивак,
Н.Е. Щепина
Publication year - 2021
Publication title -
žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-748X
pISSN - 0044-4642
DOI - 10.21883/jtf.2021.08.51096.53-21s
Subject(s) - differential scanning calorimetry , activation energy , recrystallization (geology) , materials science , titanium , crystallite , diffusion , metal , thermodynamics , metallurgy , analytical chemistry (journal) , chemistry , chromatography , paleontology , physics , biology
Using differential scanning calorimetry, the regularities of polymorphic α↔β transformation in polycrystalline titanium WТ 1-00 were studied. The values of the activation energy of the α↔β transformation during heating of titanium (760±30 kJ/mol and 1100±100 kJ/mol) were determined, which were dependent on the thermal history of the metal. It is suggested that the recrystallization mechanisms during heating and cooling are controlled by diffusion-free and diffusion mechanisms implemented in overlapping temperature intervals.