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Meeting Materials Science & Technology 2019
Symposium Applications of Modern Characterization Techniques to Ferrous Alloys and Steel Products
Presentation Title The Reduction Performance of the Ca2 (Fe2-xAlx) O5 Solid Solution
Author(s) Fei Liao
On-Site Speaker (Planned) Fei Liao
Abstract Scope Ca2Fe2O5 is a key precursor in the sintering and reduction process of iron ore fines. Al2O3 can be dissolved into Ca2Fe2O5 to form Ca2(Fe2-xAlx)O5 solid solution. In this paper, the reduction performance of the Ca2(Fe2-xAlx)O5 has been investigated using the thermogravimetric method at 1173K, 1223k, and 1273K respectively with 70%CO-30%N2 gas mixtures . X-ray diffraction is used to characterize the phase change of the sintered samples and the reduced product. The results indicate that reaction rate increases with increasing content of aluminium in solid solution. The reduction process of Ca2(Fe1.6Al0.4)O5 is used to study the migration behavior of the aluminum.The apparent activation energy values of Ca2(Fe2-xAlx)O5 solid solutions (x=0, x=0.1, x=0.2, x=0.3, and x=0.4) are 105.01, 95.30, 83.30, 75.91, and 61.40 kJ·mol-1 respectively. Keywords: Al2O3; Ca2 (Fe2-xAlx) O5 solid solution; isothermal reduction; XRD
Proceedings Inclusion? Definite: At-meeting proceedings

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

An Improved Method for Characterization of Inclusions in Steels with X-ray Diffraction
Analysis of Hardening Mechanisms in a Low-carbon Steel by Microscopy-spectroscopy and Nanoindentation Techniques
Analysis of Sigma Formation Mechanisms in Aged Hyper Duplex Stainless Steel
Applications of Machine Learning In Microscopy for Routine Assessment and Quality Assurance in Ferrous Alloy Production, Manufacturing and Service
Elevated Temperature Mechanical Property-Microstructure Relationships of X70 Pipeline Steels
Microstructural and Physicochemical Properties of Iron-cerium Alloy
Neutron Scattering Characterization of Steel Alloys
Quantitative Analysis of Heterogeneous Solute Segregation at Austenite Grain Boundary or Austenite / Ferrite Interphase Boundaries ~ Three Dimensional Atom Probe Analysis Complemented with Austenite Reconstruction Method ~
Quantitative Analysis of Inconel 718 by SEM/EDS – Challenges and Possible Solutions
Synchrotron Radiation X-ray Diffraction Studies of Carbide Evolution in Fe-Mn-Al-C Steel
The Reduction Performance of the Ca2 (Fe2-xAlx) O5 Solid Solution
Tracing Competitive Segregation Effects in Boron Containing Micro-alloyed Steels
Tracking Down Niobium Precipitation in HSLA Steels at the Atomic Level

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