Вплив технологічної схеми виготовлення на структуру та властивості високоентропійних сплавів системи Ti – Cr – Fe – Ni – Cu
Using the methods of powder metallurgy, according to three technological schemes, high-entropic alloys of the equiatomic composition TiCrFeNiCu were developed. During the sintering of the mixture of the equiatomic composition of TiCrFeNiCu, the effect of entropy of mixing caused the formation of sol...
Збережено в:
| Дата: | 2018 |
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| Автори: | , , |
| Формат: | Стаття |
| Мова: | Українська |
| Опубліковано: |
Physico- Technological Institute of Metals and Alloys of the NAS of Ukraine
2018
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| Онлайн доступ: | https://momjournal.org.ua/index.php/mom/article/view/2018-2-5 |
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| Назва журналу: | Metal Science and Treatment of Metals |
Репозитарії
Metal Science and Treatment of Metals| Резюме: | Using the methods of powder metallurgy, according to three technological schemes, high-entropic alloys of the equiatomic composition TiCrFeNiCu were developed. During the sintering of the mixture of the equiatomic composition of TiCrFeNiCu, the effect of entropy of mixing caused the formation of solid substitution solutions based on lattices of BCC and FCC. The most complete realization of mixing entropy is carried out by technology: grinding → hot stamping. Hot stamping of the ground powders leads to the preferential formation of a solid substitution solution based on the FCC lattice with a substantial distortion of the crystal lattice: CSR – 15,3 nm, (Δa/a) – 20,1·10-2 (FCC), dislocation density ρ – 8,6·1012 cm-2 (FCC). The resulting alloy has maximum hardness. |
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