Effect of Chemical Composition and Structure on the Shape Recovery Temperatures of Titanium Nickelide-Based Alloys
| Autor: | M. B. Afonina, M. Yu. Kollerov, A. A. Sharonov, D. E. Gusev |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
020502 materials Titanium nickelide 0211 other engineering and technologies Metals and Alloys chemistry.chemical_element Thermodynamics 02 engineering and technology Condensed Matter Physics Nickel 0205 materials engineering chemistry Mechanics of Materials Metallic materials Volume fraction Smelting Materials Chemistry Ingot Chemical composition 021102 mining & metallurgy |
| Zdroj: | Metallurgist. 65:102-112 |
| ISSN: | 1573-8892 0026-0894 |
| Popis: | It is shown that the structure of alloys based on titanium nickelide, obtained by industrial technology, invariably contains titanium-rich phases of type Ti2Ni/Ti4Ni2(O, N), even if the nickel concentration in the B2-phase exceeds the equiatomic composition. The volume fraction of these phases depends on the smelting method, the purity of the charge, and the technology used for subsequent ingot processing. Regression equations linking shape recovery temperatures with the concentration of nickel in the B2-phase in the quenched state are presented. On the basis of these equations, a method for calculating the volume fraction of Ti3Ni4 type particles released during aging is proposed. |
| Databáze: | OpenAIRE |
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