Effect of the Boron Powder on Surface AISI W2 Steel: Experiments and Modelling
| Autor: | Noé López Perrusquia, Ernesto David Garcia Bustos, Víctor Jorge Cortés Suárez, David Sanchez Huitron, Marco Antonio Doñu Ruiz |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Article Subject Scanning electron microscope Alloy chemistry.chemical_element 02 engineering and technology Activation energy engineering.material 01 natural sciences chemistry.chemical_compound Boride 0103 physical sciences General Materials Science Composite material Boron Materials of engineering and construction. Mechanics of materials Powder mixture Boriding 010302 applied physics General Engineering 021001 nanoscience & nanotechnology chemistry TA401-492 engineering 0210 nano-technology Layer (electronics) |
| Zdroj: | Advances in Materials Science and Engineering, Vol 2021 (2021) |
| ISSN: | 1687-8434 |
| DOI: | 10.1155/2021/5548004 |
| Popis: | The effect of boron powder on surface AISI W2 steel and growth kinetic of the boride layer is studied. Boron powder mixture was used in the powder pack boriding; this process was carried out in the temperature range from 1173 to 1273 K with exposure times ranging from 2 to 8 h. The presence of boride was confirmed by optical microscopy, X-ray diffraction, and the distribution of alloy elements in boride layers with energy-dispersive spectrometry using scanning electron microscopy. A mathematical model of the growth kinetics of the single layer was proposed and boron diffusion coefficient was determined by mass balance equation. The morphology of Fe2B layer was smooth and boron activation energy in W2 steel was estimated as 187.696 kJ·mol−1. The kinetic model was validated with two experimental conditions, a contour diagram describing the evolution of Fe2B layer as a function of time and temperature parameters for industrial application. |
| Databáze: | OpenAIRE |
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