Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/161642
Title: Texture and microstructure characterizations of Fe-3.5wt%Si soft magnetic alloy fabricated via laser powder bed fusion
Authors: Shen, Xiaojun
Meng, Fanbo
Lau, Kwang Boon
Wang, Pei
Lee, Christopher Ho Tin
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2022
Source: Shen, X., Meng, F., Lau, K. B., Wang, P. & Lee, C. H. T. (2022). Texture and microstructure characterizations of Fe-3.5wt%Si soft magnetic alloy fabricated via laser powder bed fusion. Materials Characterization, 189, 112012-. https://dx.doi.org/10.1016/j.matchar.2022.112012
Project: NRF-NRFF12-2020-0003 
A20E7c0109 
Journal: Materials Characterization 
Abstract: Manufacturing stable grain-oriented electric steel with fewer procedures remains a challenge due to the formation of detrimental γ-fiber (〈111〉//ND) texture. In this work, Laser Powder Bed Fusion (LPBF) process was employed to obtain a strong λ-fiber (〈100〉//ND) texture in a Fe-3.5wt%Si electrical steel. The texture and microstructure were characterized by Electron Backscatter Diffraction (EBSD), Scanning Electron Microscopy/Energy Dispersive X-ray Spectroscopy (SEM/EDS) and High-Resolution Transmission Electron Microscopy (HRTEM). The EBSD results showed a strong λ-fiber texture on the top plane of Fe-Si alloy. It included {001}〈001〉 Cube texture, {001}〈110〉 rotated cube texture and {100}〈105〉 texture. With the lowest energy density, an area fraction of 16.6% γ-fiber texture was formed on the top plane. Additionally, the formation of amorphous precipitates in additively manufactured Fe-Si alloy was firstly reported. The lattice constant of 2.7975 Å was calculated in the matrix area. The work has shown LPBF can open a new door to manufacture grain-oriented electrical steel for industrial applications.
URI: https://hdl.handle.net/10356/161642
ISSN: 1044-5803
DOI: 10.1016/j.matchar.2022.112012
Schools: School of Electrical and Electronic Engineering 
Rights: © 2022 Elsevier Inc. All rights reserved. This paper was published in Materials Characterization and is made available with permission of Elsevier Inc.
Fulltext Permission: embargo_20240807
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles

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