Related Experiment Video
Updated: Aug 9, 2026

Characterization of Ultra-fine Grained and Nanocrystalline Materials Using Transmission Kikuchi Diffraction
Published on: April 1, 2017
Characterization of the Fe-6.5wt%Si Strip with Rapid Cooling Coupling Deep Supercooled Solidification
Bo Wang1, Guangxun Li1, Yang Wang2
1Hebei Key Laboratory of Material Near-net Forming Technology, School of Materials Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei 050018, China.
Rapid cooling and deep supercooling enhance Fe-6.5wt%Si steel properties by refining grains and suppressing undesirable phase transitions. This optimization significantly improves plasticity and magnetic performance.
Area of Science:
- Materials Science
- Solidification Processing
- Magnetic Materials
Background:
- Understanding phase transitions is crucial for controlling material properties.
- Rapid cooling and deep supercooling offer pathways to unique microstructures.
- Fe-Si alloys are important for magnetic applications.
Purpose of the Study:
- To investigate phase transition laws under rapid cooling and deep supercooled solidification.
- To analyze microstructure evolution and mechanical properties.
- To optimize the magnetic properties of Fe-6.5wt%Si steel.
Main Methods:
- Utilized arc melting, electromagnetic induction heating, and high-speed single-roll cooling.
- Studied phase transition, microstructure, and mechanical properties.
- Analyzed phase composition and magnetic properties at various cooling rates.
Main Results:
- Rapid cooling promoted uniform nucleation and grain refinement.
- Phase transition from disordered (A2) to ordered (B2, DO3) phases was suppressed.
- Optimized microstructure led to improved plasticity and magnetic properties.
- Fe-6.5wt%Si steel at 42 m/s showed Fe, Fe2Si, and SiC phases with equiaxed ferrite structure.
Conclusions:
- Rapid cooling coupled with deep supercooling effectively refines grain structure.
- Suppression of ordered phase transitions enhances plasticity and magnetic properties.
- The optimized Fe-6.5wt%Si steel exhibits exceptional magnetic performance due to its unique phase transition behavior.
More Related Videos
14:51An Available Technique for Preparation of New Cast MnCuNiFeZnAl Alloy with Superior Damping Capacity and High Service Temperature
Published on: September 23, 2018
08:55Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
Published on: June 7, 2018
Related Concept Videos
Metallic Solids
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability. Many...
Recrystallization: Solid–Solution Equilibria
Mechanical Characteristics of Steel
The tension test is fundamental for determining tensile strength. In this test, a steel specimen is stretched using a gripping device until it breaks. The data collected during this test are used to...