Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Studies show that with the HPT of bulk metallic glass, the actual achievable strain is significantly lower than the one predicted by the equation γ=2πnR/h. Such a discrepancy can be explained by the effect of “slippage” during the HPT. The authors proposed a new method − “accumulative HPT” − to achieve a high strain in hard materials, including BMGs. In the accumulative HPT procedure, a sample undergoes several cycles: “HPT n = 1 revolution → cutting a sample into pieces → pressing of stacked parts on the anvils and subsequent HPT n = 1”. At the last stage, the stacked segments are subjected to HPT with many revolutions (n ≥ 3) whereby the sample is consolidated into a monolithic disk. As a result, the material receives a significant total strain by pressing and torsion. The article presents the first results of the “accumulative HPT” processing of a Zr-based BMG and a crystallized Zr-based intermetallic.
Язык оригинала | английский |
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Номер статьи | 127000 |
Число страниц | 3 |
Журнал | Materials Letters |
Том | 261 |
Дата раннего онлайн-доступа | 11 ноя 2019 |
DOI | |
Состояние | Опубликовано - 15 фев 2020 |
ID: 49713341