A comparative study of metastable phase separation for undercooled liquid Fe35Cu65 alloy under natural and forced cooling conditions

Wu, Yuhao; Zhu, Baorong; Su, Jingwen; Gao, Zhiming; Zhao, Xing

doi:10.1016/j.jallcom.2022.167079

Cited by 9 publications

(3 citation statements)

References 24 publications

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“…From the phase diagram of Fe-Cu alloy [1,12], and the component of Fe48Cu52 alloy begins phase separation (L → L1 + L2) only if it rapidly decreases from T0 (=1794 K) to below Tb (=1688 K). When its temperature further decreases to the peritectic reaction (Tm = 1369 K) or below, the solid phase emerges and the migration stops.…”

Section: Methodsmentioning

confidence: 99%

“…Under microgravity conditions, the motion of the L2 phase sphere is mainly controlled by Marangoni convection, and the migration rate is [7,12]:…”

Section: Migration and Theoretical Position Of L2 Phase Spherementioning

confidence: 99%

“…Obviously, the dynamic behavior of the L2 phase is closely related to the solidification morphology inside the droplet [11,12]. When most L2 phase spheres aggregate at the center of the droplet, they are highly likely to form a core structure by coalescence and collision.…”

Section: Introductionmentioning

confidence: 99%

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Numerical method determining the time-dependent position of a minority phase sphere in the Fe-Cu alloy droplet

Li,

Peng,

Tian

et al. 2024

J. Phys.: Conf. Ser.

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A numerical method was developed to track the dynamic positions of the L2 phase sphere inside the Fe-Cu alloy droplet. Firstly, the temperature field distribution within alloy droplet was calculated, and the variation in thermal gradient was analyzed. Secondly, the migration behavior of the sphere was analyzed based on Marangoni convection. Finally, the theoretical position of the 10 μm sphere was determined. The results demonstrated that there is a little difference in temperature between the center and the surface of the droplet, but its gradient is very different. Moreover, the maximum migration times for the L2 phase sphere were determined to be ~0.02 s, 0.07 s, and 0.14 s within 300μm, 600μm, and 900μm alloy droplets, respectively. In addition, it was also found that the same-sized spheres can reach the same relative position, i.e., 0.485R. This means the final position of the sphere within the different alloy droplets is independent of the droplet size.

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Section: Methodsmentioning

confidence: 99%

“…Under microgravity conditions, the motion of the L2 phase sphere is mainly controlled by Marangoni convection, and the migration rate is [7,12]:…”

Section: Migration and Theoretical Position Of L2 Phase Spherementioning

confidence: 99%