| Autor: |
Yeon Beom Jeong, Hee Ra Jo, Hae Jin Park, Hidemi Kato, Ki Buem Kim |
| Jazyk: |
angličtina |
| Rok vydání: |
2020 |
| Předmět: |
|
| Zdroj: |
Journal of Materials Research and Technology, Vol 9, Iss 6, Pp 15989-15995 (2020) |
| Druh dokumentu: |
article |
| ISSN: |
2238-7854 |
| DOI: |
10.1016/j.jmrt.2020.11.049 |
| Popis: |
Phase morphology and the distribution of the strengthening phase generally have a strong influence on the movement of dislocations. The presence of minor alloying element Mg in Cu–30Fe alloy significantly affects both the morphology and distribution of the strengthening phase. Dendritic α-Fe is transformed into a spherical morphology because of changes in the chemical composition during the solidification process. The presence of Mg leads to the formation of secondary phase-separated Cu within the α-Fe phase and to increasing heterogeneity of the gradient size of the α-Fe phase. The increased volume fraction of α-Fe enhanced by secondary separated Cu, refinement of α-Fe, and the degree of distribution enhanced the yield strength of this alloy by 40% compared with that of Cu–30Fe. This result can be used as a guide to modifying the morphology of Cu–Fe alloys and improve understanding of strengthening mechanism of this system. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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