Bilayer growth kinetics and tribological characterization of boronized AISI M2 steel
| Autor: | Martín Ortiz Domínguez, Mourad Keddam, Oscar Armando Gómez Vargas, Gonzalo Ares de Parga, Jorge Zuno Silva |
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| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Materials Testing. 64:473-489 |
| ISSN: | 2195-8572 0025-5300 |
| DOI: | 10.1515/mt-2021-2091 |
| Popis: | The AISI M2 steel has been treated by solid boriding between 1123 and 1273 K for an exposure time of 2–8 h. In these circumstances, a bilayer constituted by FeB and Fe2B has been formed with interfaces nearly flat. The tribological behavior and decohesion resistance of boride coatings were studied by using the following characterizations: (Rockwell-C cohesion, pin-on-disc and wear scratch tests). The modeling of process kinetics was undertaken based on two different approaches (the mass balance equations and the integral method). The assessed values of boron activation energies in FeB and Fe2B arising from the two models were nearly similar. In addition, the predicted layers’ thicknesses at 1243 and 1273 K during 10 h were concordant with the experimental values. |
| Databáze: | OpenAIRE |
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