Increasing the Stability of Mechanical Properties of Semifinished Products from Ti–6Al–4V Alloys by Correcting the Alloying Range and Annealing Modes

Statistical studies on the stability of the mechanical properties of various semifinished products made from Ti–6Al–4V alloys depending on the content of alloying elements and impurities after annealing under factory conditions have been conducted. Results show that the influence of each alloying el...

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Veröffentlicht in:Metallurgist (New York) 2021-11, Vol.65 (7-8), p.872-885
Hauptverfasser: Egorova, Yu. B., Skvortsova, S. V., Chibisova, E. V., Davydenko, L. V.
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container_issue 7-8
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container_title Metallurgist (New York)
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creator Egorova, Yu. B.
Skvortsova, S. V.
Chibisova, E. V.
Davydenko, L. V.
description Statistical studies on the stability of the mechanical properties of various semifinished products made from Ti–6Al–4V alloys depending on the content of alloying elements and impurities after annealing under factory conditions have been conducted. Results show that the influence of each alloying element and impurity may be insignificant, but their combined effect in terms of aluminum and molybdenum equivalents leads to a significant variation in properties. The influence of the chemical composition in terms of aluminum and molybdenum equivalents, as well as simple annealing modes, the difference between the polymorphic transformation temperature and annealing temperature, and the diameter of rolled rods of 15–150 mm on the mechanical properties of the titanium alloy VT6 has also been examined. Based on the probabilistic approach, recommendations have been provided to improve the stability of the properties of VT6 alloy rolled rods and eliminate defective products by adjusting the annealing modes depending on the content of alloying elements and impurities.
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subjects Alloying elements
Aluminum
Annealing
Characterization and Evaluation of Materials
Chemical composition
Chemistry and Materials Science
Equivalence
Impurities
Materials Science
Mechanical properties
Metallic Materials
Molybdenum
Rods
Specialty metals industry
Stability
Statistical analysis
Titanium alloys
Titanium base alloys
Transformation temperature
title Increasing the Stability of Mechanical Properties of Semifinished Products from Ti–6Al–4V Alloys by Correcting the Alloying Range and Annealing Modes
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