Next Article in Journal
Effect of Laser Power on Microstructure and Micro-Galvanic Corrosion Behavior of a 6061-T6 Aluminum Alloy Welding Joints
Previous Article in Journal
Histomorphometric Analysis of Osseointegrated Grade V Titanium Mini Transitional Implants in Edentulous Mandible by Backscattered Scanning Electron Microscopy (BS-SEM)
Previous Article in Special Issue
Solidification and Precipitation Microstructure Simulation of a Hypereutectic Al–Mn–Fe–Si Alloy in Semi-Quantitative Phase-Field Modeling with Experimental Aid
Open AccessArticle

Effect of Al Concentration on the Microstructural Evolution of Fe-Cr-Al Systems: A Phase-Field Approach

Department of Nuclear Engineering, Kyung Hee University, Yongin-City 17104, Korea
*
Author to whom correspondence should be addressed.
Metals 2021, 11(1), 4; https://doi.org/10.3390/met11010004
Received: 27 November 2020 / Revised: 15 December 2020 / Accepted: 18 December 2020 / Published: 22 December 2020
(This article belongs to the Special Issue Modeling and Microstructure Evolution of Solid State Materials)
In this study, the microstructural evolution of an Fe-Cr-Al system was simulated in two-dimensional (2D) and three-dimensional (3D) systems using the phase-field method. We investigated the effect of Al concentration on the microstructural evolution of the systems, with a focus on the nucleation and growth of the Cr-rich α phase. In addition, we quantitatively analyzed the mechanism of the effect of Al concentration on the microstructural characteristics of the 2D and 3D systems, such as the number of precipitates, average precipitate area (volume), and α phase fraction. In particular, we analyzed the effect of Al concentration and the dimensions of the system cell on the formation of the interconnected structure at high Cr concentrations, such as 35 Crat% and 40 Crat%. To enhance the performance of the simulations, we applied a semi-implicit Fourier spectral method for the ternary system and a parallel graphics processing unit computing technique. The results revealed that the initiation of phase separation in the 2D and 3D simulations was enhanced with an increase in the average Al concentration in the system. In addition, with an increase in the average Al concentration in both systems, the α phase fraction increased, while the change in the phase fraction decreased. View Full-Text
Keywords: Fe-Cr-Al system; phase-field method; spinodal decomposition Fe-Cr-Al system; phase-field method; spinodal decomposition
Show Figures

Figure 1

MDPI and ACS Style

Lee, J.; Park, K.; Chang, K. Effect of Al Concentration on the Microstructural Evolution of Fe-Cr-Al Systems: A Phase-Field Approach. Metals 2021, 11, 4. https://doi.org/10.3390/met11010004

AMA Style

Lee J, Park K, Chang K. Effect of Al Concentration on the Microstructural Evolution of Fe-Cr-Al Systems: A Phase-Field Approach. Metals. 2021; 11(1):4. https://doi.org/10.3390/met11010004

Chicago/Turabian Style

Lee, Jeonghwan; Park, Kwangheon; Chang, Kunok. 2021. "Effect of Al Concentration on the Microstructural Evolution of Fe-Cr-Al Systems: A Phase-Field Approach" Metals 11, no. 1: 4. https://doi.org/10.3390/met11010004

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop