| Autor: |
Bao, Longke, Du, Peng, Xi, Shengkun, Wang, Cuiping, Zheng, Kaihong, Shi, Rongpei, Xie, Guoqiang, Liu, Xingjun |
| Předmět: |
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| Zdroj: |
Journal of Magnesium & Alloys; Oct2024, Vol. 12 Issue 10, p4053-4062, 10p |
| Abstrakt: |
To understand the interface characteristics between the precipitate β 2 ′ and the Mg matrix, and thus guide the development of new Mg-Zn alloys, we investigated the atomic interface structure, work of adhesion (W ad), and interfacial energy (γ) of Mg(0001)/ β 2 '(MgZn 2)(0001) interface, as well as the effect of segregation behavior of the introduced transition metal atoms (3 d , 4 d and 5 d) on interfacial bonding strength. The calculated works of adhesion and interfacial energies dementated that the Zn2-terminated MT+HCP configuration is the most stable structure for all considered models. Take the Zn2- MT+HCP interface as the research object, estimated segregated energies (E seg) reveal that added transition metal atoms prefer to segregate at Mg-I and Mg-II sites. The predicted W ad and charge density difference results reveal that the segregation of alloying additives employed may all strengthen Mg(0001)/MgZn 2 (0001) interface, with the enhancement effect of Os, Re, Tc, W, and Ru at the Mg-II site being the most pronounced. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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