Open AccessОсобенности кристаллизации быстрозакаленных аморфных сплавов Ti-=SUB=-50-=/SUB=-Ni-=SUB=-20-=/SUB=-Cu-=SUB=-30-=/SUB=- после кручения под высоким давлением
Author(s) -
Nikolay Sitnikov,
А. В. Шеляков,
Р.В. Сундеев,
I. A. Khabibullina
Publication year - 2020
Publication title -
fizika tverdogo tela
Language(s) - English
Resource type - Journals
eISSN - 1726-7498
pISSN - 0367-3294
DOI - 10.21883/ftt.2020.05.49223.14m
Subject(s) - crystallization , amorphous solid , materials science , amorphous metal , quenching (fluorescence) , alloy , copper , crystallography , analytical chemistry (journal) , metallurgy , thermodynamics , chemistry , physics , chromatography , quantum mechanics , fluorescence
There is a splitting of crystallization peaks in the region of lower temperatures, that is, regions are formed in which low-temperature crystallization is possible. It was found that HPC causes a decrease in the thermal effect of crystallization upon heating alloys with a high copper content relative to the initial amorphous state obtained after quenching from the melt. After DSC crystallization in the alloy, a structure was formed that is characterized by inhomogeneity in the cross section of the sample with stratification according to the size of the structural elements. In the regions of partial nanocrystallization of the amorphous state after crystallization, a finer-grained structure was formed than in the main bulk of the sample. The obtained results convincingly demonstrate the influence of HPC on the formation of a crystalline structure from amorphous Ti50Ni20Cu30 alloys.