Parameters Evolution of Orthorhombic Martensite Lattice in VT16 Titanium Alloy During Heating

The material of the study was (α + β) -titanium alloy VT16. Samples were quenched from different temperatures and then they were heated in situ on X-ray diffractometer. It has been established that the period “b” of the orthorhombic martensite lattice showed negative values of the coefficient of thermal expansion during heating.The study was supported by the grant of the Russian Science Foundation № 18-13-00220