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Updated: Nov 21, 2025
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Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
Published on: June 7, 2018
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A Non-Isokinetic Approach for Modeling Solid-State Transformations: Application to Crystallization of a Fe-B
Yazhu Ma1, Yubing Zhang1, Feng Liu1
1State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an 710072, Shaanxi, China.
Materials (Basel, Switzerland)
|January 12, 2021
Summary
A new non-isokinetic approach analyzes amorphous alloy crystallization kinetics. This method successfully determined kinetic parameters and activation energies for nucleation and growth in Fe85B15 alloys.
Area of Science:
- Materials Science
- Physical Chemistry
- Solid-State Physics
Background:
- Crystallization of amorphous alloys is a key solid-state transformation.
- Existing analytical models struggle with isochronal transformations and abrupt enthalpy changes typical in differential scanning calorimetry (DSC).
Purpose of the Study:
- To develop a non-isokinetic approach for analyzing isochronal crystallization kinetics.
- To overcome limitations of existing models in DSC studies.
Main Methods:
- A novel non-isokinetic approach was developed, building upon an existing analytical model.
- The approach was applied to study the isochronal crystallization kinetics of an Fe85B15 amorphous alloy using DSC.
Main Results:
- The non-isokinetic approach successfully analyzed the crystallization kinetics.
- Kinetic parameters and activation energies for both nucleation and growth were determined for the Fe85B15 alloy.
Conclusions:
- The proposed non-isokinetic method is effective for studying isochronal crystallization kinetics.
- This approach provides valuable insights into the activation energies governing amorphous alloy transformations.
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