Forecasting VT6 Titanium Alloy Rolled Bar Mechanical Properties
| Autor: | Yu. B. Egorova, S. V. Skvortsova, L. V. Davydenko |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Annealing (metallurgy) 020502 materials 0211 other engineering and technologies Metals and Alloys chemistry.chemical_element Titanium alloy Izod impact strength test 02 engineering and technology Condensed Matter Physics Condensed Matter::Materials Science 0205 materials engineering chemistry Mechanics of Materials Aluminium Impurity Molybdenum Ultimate tensile strength Materials Chemistry Lamellar structure Composite material 021102 mining & metallurgy |
| Zdroj: | Metallurgist. 64:242-252 |
| ISSN: | 1573-8892 0026-0894 |
| DOI: | 10.1007/s11015-020-00989-8 |
| Popis: | Statistical studies of the chemical composition (alloying element and impurity contents, aluminum and molybdenum equivalents), polymorphic transformation temperature, structure (globular, lamellar, transition, mixed, basket-weave), and standard mechanical properties (tensile strength, elongation, reduction of area, impact strength, hardness) of rolled bars 15–150 mm in diameter, prepared from titanium alloy VT6 in 2013–2017 are performed. Various types of structure are obtained by changing deformation regime and simple annealing (600–920°С, 20–180 min, air cooling). Correlation relationships of mechanical properties with various factors are analyzed. It is established that the mechanical properties of bars with globular, transitional, and mixed structures are more dependent on fluctuations in grade composition and annealing regime than on the type of structure. Multivariant regression dependences are proposed for evaluating mechanical properties from alloying element and impurity equivalents for aluminum and molybdenum, the difference between polymorphic transformation and annealing temperatures, annealing time, and bar diameter. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|