Open AccessModel of fragile destruction of metal constructions at reduced temperatures
Author(s) -
Yu. G. Kabaldin,
А. А. Хлыбов,
М. С. Аносов
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/709/3/033075
Subject(s) - brittleness , lattice (music) , materials science , metal , brittle fracture , condensed matter physics , lattice constant , atmospheric temperature range , thermodynamics , fracture (geology) , metallurgy , composite material , physics , quantum mechanics , acoustics , diffraction
The paper presents the results of studies of metals with different types of crystalline structure in a wide range of low temperatures. Based on the data obtained, a model of brittle fracture of metals at low temperatures is proposed. The relationship between the lattice parameter of metals and the temperature of a viscous-brittle transition is established. A quantum-mechanical simulation of the effect of temperature on the lattice parameter has been carried out. It is shown that a decrease in the lattice parameter is observed with decreasing temperature.