Diffusion kinetics of boron in the X200CrMoV12 high-alloy steel
In this work, the kinetics of formation of the boride layers (FeB/Fe2B), formed on the X200CrMoV12 steel used for the coldworking, was investigated. The boriding treatment was carried out in the powder mixture consisting of 5%B4C, 5% NaBF4 and 90% SiC. The boriding parameters are : 900, 950...
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University of Belgrade, Technical Faculty, Bor
2015-01-01
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| Series: | Journal of Mining and Metallurgy. Section B: Metallurgy |
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| Online Access: | http://www.doiserbia.nb.rs/img/doi/1450-5339/2015/1450-53391500009A.pdf |
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| author | Azouani O. Keddam M. Brahimi A. Sehisseh A. |
| author_facet | Azouani O. Keddam M. Brahimi A. Sehisseh A. |
| author_sort | Azouani O. |
| collection | DOAJ |
| description | In this work, the kinetics of formation of the boride layers (FeB/Fe2B),
formed on the X200CrMoV12 steel used for the coldworking, was investigated.
The boriding treatment was carried out in the powder mixture consisting of
5%B4C, 5% NaBF4 and 90% SiC. The boriding parameters are : 900, 950 and
1000°C with treatment times of 2, 4 and 6 h. The obtained borided layers
(FeB/Fe2B) were characterized by the following experimental techniques:
optical microscopy, scanning electron microscopy coupled to EDS analysis and
XRD analysis. The kinetics of boron diffusion in the X200CrMoV12 steel was
also studied. As a result, the time dependence of the borided layers
thicknesses followed a growth parabolic law. The boron activation energy was
estimated as 199.37 kJ mol-1 for the X200CrMoV12 steel. A full factorial
design with 2 factors at 3 levels was employed to estimate the total boride
layer thickness as a function of the boriding parameters (time and
temperature) and a simple equation was proposed. Finally, an iso-thickness
diagram was given as a tool to predict the total boride layers thicknesses in
relation with the practical utilization of this kind of steel. |
| format | Article |
| id | doaj-art-afe40761416e4cfb93e2c284452b024d |
| institution | Kabale University |
| issn | 1450-5339 2217-7175 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | University of Belgrade, Technical Faculty, Bor |
| record_format | Article |
| series | Journal of Mining and Metallurgy. Section B: Metallurgy |
| spelling | doaj-art-afe40761416e4cfb93e2c284452b024d2025-02-02T07:37:21ZengUniversity of Belgrade, Technical Faculty, BorJournal of Mining and Metallurgy. Section B: Metallurgy1450-53392217-71752015-01-01511495410.2298/JMMB140404009A1450-53391500009ADiffusion kinetics of boron in the X200CrMoV12 high-alloy steelAzouani O.0Keddam M.1Brahimi A.2Sehisseh A.3Commissariat а l’Energie Atomique, Centre de Recherche Nucléaire de Draria (CRND), Draria, Algiers, AlgeriaUSTHB, Faculté de Génie Mécanique et Génie des Procédés, Laboratoire de Technologie des Matériaux, Département SDM, Algiers, AlgeriaLaboratoire de Traitement de Surface et Matériaux, Département de Génie Mécanique, Université Saad Dahlab, Route De Soumaa, AlgeriaCommissariat а l’Energie Atomique, Centre de Recherche Nucléaire de Draria (CRND), Draria, Algiers, AlgeriaIn this work, the kinetics of formation of the boride layers (FeB/Fe2B), formed on the X200CrMoV12 steel used for the coldworking, was investigated. The boriding treatment was carried out in the powder mixture consisting of 5%B4C, 5% NaBF4 and 90% SiC. The boriding parameters are : 900, 950 and 1000°C with treatment times of 2, 4 and 6 h. The obtained borided layers (FeB/Fe2B) were characterized by the following experimental techniques: optical microscopy, scanning electron microscopy coupled to EDS analysis and XRD analysis. The kinetics of boron diffusion in the X200CrMoV12 steel was also studied. As a result, the time dependence of the borided layers thicknesses followed a growth parabolic law. The boron activation energy was estimated as 199.37 kJ mol-1 for the X200CrMoV12 steel. A full factorial design with 2 factors at 3 levels was employed to estimate the total boride layer thickness as a function of the boriding parameters (time and temperature) and a simple equation was proposed. Finally, an iso-thickness diagram was given as a tool to predict the total boride layers thicknesses in relation with the practical utilization of this kind of steel.http://www.doiserbia.nb.rs/img/doi/1450-5339/2015/1450-53391500009A.pdfBoridingDiffusionIron boridesKineticsActivation energyRegression model |
| spellingShingle | Azouani O. Keddam M. Brahimi A. Sehisseh A. Diffusion kinetics of boron in the X200CrMoV12 high-alloy steel Journal of Mining and Metallurgy. Section B: Metallurgy Boriding Diffusion Iron borides Kinetics Activation energy Regression model |
| title | Diffusion kinetics of boron in the X200CrMoV12 high-alloy steel |
| title_full | Diffusion kinetics of boron in the X200CrMoV12 high-alloy steel |
| title_fullStr | Diffusion kinetics of boron in the X200CrMoV12 high-alloy steel |
| title_full_unstemmed | Diffusion kinetics of boron in the X200CrMoV12 high-alloy steel |
| title_short | Diffusion kinetics of boron in the X200CrMoV12 high-alloy steel |
| title_sort | diffusion kinetics of boron in the x200crmov12 high alloy steel |
| topic | Boriding Diffusion Iron borides Kinetics Activation energy Regression model |
| url | http://www.doiserbia.nb.rs/img/doi/1450-5339/2015/1450-53391500009A.pdf |
| work_keys_str_mv | AT azouanio diffusionkineticsofboroninthex200crmov12highalloysteel AT keddamm diffusionkineticsofboroninthex200crmov12highalloysteel AT brahimia diffusionkineticsofboroninthex200crmov12highalloysteel AT sehisseha diffusionkineticsofboroninthex200crmov12highalloysteel |