Boriding kinetics of Fe2B layers formed on AISI 1045 steel
In the present work, a diffusion model was suggested to study the growth kinetics of Fe2B layers grown on the AISI 1045 steel by the pack-boriding treatment. The generated boride layers were analyzed by optical microscopy and X-ray diffraction analysis. The applied diffusion model is based...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
University of Belgrade, Technical Faculty, Bor
2014-01-01
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| Series: | Journal of Mining and Metallurgy. Section B: Metallurgy |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/1450-5339/2014/1450-53391400019Z.pdf |
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| Summary: | In the present work, a diffusion model was suggested to study the growth
kinetics of Fe2B layers grown on the AISI 1045 steel by the pack-boriding
treatment. The generated boride layers were analyzed by optical microscopy
and X-ray diffraction analysis. The applied diffusion model is based on the
principle of mass conservation at the (Fe2B/ substrate) interface. It was
used to estimate the boron diffusion coefficients of Fe2B in the temperature
range of 1123-1273 K. A validation of the model was also made by comparing
the experimental Fe2B layer thickness obtained at 1253 K for 5 h of treatment
with the predicted value. Basing on our experimental results, the boron
activation energy was estimated as 180 kJ mol-1 for the AISI 1045 steel. |
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| ISSN: | 1450-5339 |