期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 771, 期 -, 页码 643-648出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2018.08.293
关键词
Fe-6.5 wt.% Si; Melt spinning; Quenching; Diffusion; Domain growth
资金
- U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy (EERE) [EE0007794]
- U.S. Department of Energy [DE-AC02-07CH11358]
The microstructural evolution of Fe-6.5 wt.% Si alloy during rapid solidification was studied over a quenching rate of 4 x 10(4) K/s to 8 x 10(5) K/s. The solidification and solid-state diffusional transformation processes during rapid cooling were analyzed via thermodynamic and kinetic calculations. The Allen-Cahn theory was adapted to model the experimentally measured bcc_B2 antiphase domain sizes under different cooling rates. The model was calibrated based on the experimentally determined bcc_B2 antiphase domain sizes for different wheel speeds and the resulting cooling rates. Good correspondence of the theoretical and experimental data was obtained over the entire experimental range of cooling rates. Along with the asymptotic domain size value at the infinite cooling rates, the developed model represents a reliable extrapolation for the cooling rate > 10(6) K/s and allows one to optimize the quenching process. (C) 2018 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据