Kinetics of the Boride Layers Obtained on AISI 1018 Steel by Considering the Amount of Matter Involved
| Autor: | E. Hernández-Sánchez, J. C. Velázquez, Jorge A. Yescas-Hernández, R. Carrera-Espinoza, Noé Eliseo González-Arévalo, Pablo A. Ruiz-Trabolsi, Carlos Orozco-Álvarez |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Kinetics modeling Surfaces and Interfaces Activation energy boride layers sample size Surfaces Coatings and Films Corrosion chemistry.chemical_compound kinetics of growth chemistry Diffusion process activation energy Sample size determination lcsh:TA1-2040 Boride Materials Chemistry Growth rate Composite material lcsh:Engineering (General). Civil engineering (General) Boriding |
| Zdroj: | Coatings Volume 11 Issue 2 Coatings, Vol 11, Iss 259, p 259 (2021) |
| ISSN: | 2079-6412 |
| DOI: | 10.3390/coatings11020259 |
| Popis: | Boride layers are typically used to combat the wear and corrosion of metals. For this reason, to improve our knowledge of the boriding process, this research studied the effect of the size of the treated material on the kinetics of the growth of the boride layers obtained during a solid diffusion process. The purpose was to elucidate how the layers’ growth kinetics could be affected by the size of the samples since, as the amount of matter increases, the amount of energy necessary to make the process occur also increases. Furthermore, the level of activation energy seems to change as a function of the sample size, although it is considered an intrinsic parameter of each material. Six cylindrical samples with different diameters were exposed to the boriding process for three different exposure times (1.5, 3, and 5 h). The treatment temperatures used were 900, 950, and 1000 °C for each size and duration of treatment. The results show that the layer thickness increased not only as a function of the treatment conditions but also as a function of the sample diameter. The influence of the sample size on the growth kinetics of the boride layers is clear, because the growth rate increased even though the treatment conditions (time and temperature) remained constant. |
| Databáze: | OpenAIRE |
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