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Інформація × Реєстраційний номер 2112U001479, Матеріали видань та локальних репозитаріїв Категорія Thesis Назва роботи Mechanical Properties of Nano- and Submicrocrystalline Iron Subjected to Severe Plastic Deformation by Friction Автор Дата публікації 01-01-2012 Постачальник інформації Сумський державний університет Першоджерело http://essuir.sumdu.edu.ua/handle/123456789/35149 Видання Sumy State University Опис By using nanoindentation technique relationship between microstructure and mechanical parameters such as nanohardness Hh, plasticity characteristic A, and Young’s modulus E were found to be dependent on the grain size of the -Fe subjected to severe plastic deformation by friction (SPDF) with argon atmosphere. Unlike fcc-metals in which the decreasing of grain size to 20 nm results in hardness growth accompanied by decreasing the plasticity, it was found the reverse effect in bcc-Fe, i.e. decreasing the grain size from 50 to 20 nm caused the decrease of hardness and increase of plasticity. Moreover, the decrease of Young’s modulus E with decreasing the grain size down to 20 nm was detected in nanoindentation experiments. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/35149 Додано в НРАТ 2025-05-12 Закрити