Statistical Comparison of the Strength Properties of Titanium Alloys for Aviation Gas Turbine Engines

被引：1
作者：
Egorova, Yu. B. [1 ]
Davydenko, L. V. [2 ]
Kononova, I. S. [1 ]
机构：
[1] Natl Res Univ, Moscow Aviat Inst, Stupino Branch, Stupino 142800, Moscow Oblast, Russia
[2] Moscow Polytech Univ, Moscow 115280, Russia
来源：
RUSSIAN METALLURGY | 2021年 / 2021卷 / 06期
关键词：
titanium alloys; strength properties; forgings; test temperature; statistical studies; property prediction;
D O I：
10.1134/S0036029521060136
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The temperature dependences of the strength properties of forgings made of pseudo-alpha and alpha + beta titanium alloys intended for the production of aviation gas turbine engines are statistically studied. The ultimate tensile strengths of various are compared using cluster analysis, which allowed us to distinguish four groups of alloys with approximately the same strength reduction intensity in the temperature range 20-600 degrees C. The results obtained are used to develop polynomial models to estimate the typical values of ultimate tensile strength of stamped forgings (after standard annealing) as a function of the test temperature. Models are proposed to predict the ultimate tensile strength at various operating temperatures if the room-temperature ultimate tensile strength of an annealed semifinished product is known.
引用
收藏
页码：784 / 788
页数：5
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