Thermodynamic and kinetic analysis of the melt spinning process of Fe-6.5 wt.% Si alloy

Thumbnail Image
Date
2019-01-15
Authors
Cui, Senlin
Ouyang, Gaoyuan
Ma, Tao
Macziewski, Chad
Levitas, Valery
Zhou, Lin
Kramer, Matthew
Cui, Jun
Major Professor
Advisor
Committee Member
Journal Title
Journal ISSN
Volume Title
Publisher
Authors
Person
Person
Ouyang, Gaoyuan
Ames Laboratory Scientist II
Research Projects
Organizational Units
Organizational Unit
Organizational Unit
Organizational Unit
Mechanical Engineering
The Department of Mechanical Engineering at Iowa State University is where innovation thrives and the impossible is made possible. This is where your passion for problem-solving and hands-on learning can make a real difference in our world. Whether you’re helping improve the environment, creating safer automobiles, or advancing medical technologies, and athletic performance, the Department of Mechanical Engineering gives you the tools and talent to blaze your own trail to an amazing career.
Organizational Unit
Materials Science and Engineering
Materials engineers create new materials and improve existing materials. Everything is limited by the materials that are used to produce it. Materials engineers understand the relationship between the properties of a material and its internal structure — from the macro level down to the atomic level. The better the materials, the better the end result — it’s as simple as that.
Journal Issue
Is Version Of
Versions
Series
Department
Aerospace EngineeringAmes National LaboratoryMechanical EngineeringMaterials Science and Engineering
Abstract

The microstructural evolution of Fe-6.5 wt.% Si alloy during rapid solidification was studied over a quenching rate of 4 × 104 K/s to 8 × 105 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 > 106 K/s and allows one to optimize the quenching process.

Comments

This is a manuscript of an article published as Cui, Senlin, Gaoyuan Ouyang, Tao Ma, Chad R. Macziewski, Valery I. Levitas, Lin Zhou, Matthew J. Kramer, and Jun Cui. "Thermodynamic and kinetic analysis of the melt spinning process of Fe-6.5 wt.% Si alloy." Journal of Alloys and Compounds 771 (2018). DOI: 10.1016/j.jallcom.2018.08.293. Posted with permission.

Description
Keywords
Citation
DOI
Copyright
Mon Jan 01 00:00:00 UTC 2018
Collections