Open AccessComparison of the Strength Properties of Heat-Resistant Titanium Alloys at Elevated Temperatures
Author(s) -
Л. В. Давыденко,
Yu. B. Egorova,
И. М. Мамонов
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/969/1/012007
Subject(s) - materials science , molybdenum , titanium , aluminium , ultimate tensile strength , metallurgy , impurity , thermal stability , titanium alloy , composite material , alloy , chemical engineering , chemistry , organic chemistry , engineering
The results of statistical studies of the strength properties of rods made of heat-resistant titanium alloys at test temperatures of 20-600 °C are represented. The initial data for the research were the results of experiments published in various sources from the 1960s to 2019.The chemical composition of the alloys has been compared by aluminum and molybdenum equivalents and tensile strength at various temperatures. With an increase in the degree of alloying with a-stabilizers and neutral hardeners, the heat-resistant properties of alloys increase and remain at higher temperatures. However, this may reduce the thermal stability of alloys with an aluminum equivalent of more than 9.0%. The highest strength properties while maintaining thermal stability have alloys with aluminum equivalents of 8.5-9.0% and molybdenum of 1.0-4.5%. Regression dependences of the average values of strength properties on the test temperature, silicon content, and aluminum and molybdenum equivalents of alloying elements and impurities have been determined.