Precipitation Modeling in Nitriding in Fe-M Binary System
| Autor: | Yusaku Tomio, Tadashi Furuhara, Goro Miyamoto |
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| Rok vydání: | 2016 |
| Předmět: |
Number density
Materials science Precipitation (chemistry) Alloy Metallurgy Metals and Alloys 02 engineering and technology engineering.material Nitride 021001 nanoscience & nanotechnology Condensed Matter Physics Surface energy 020501 mining & metallurgy 0205 materials engineering Mechanics of Materials Volume fraction engineering Binary system 0210 nano-technology Nitriding |
| Zdroj: | Metallurgical and Materials Transactions A. 47:4970-4978 |
| ISSN: | 1543-1940 1073-5623 |
| DOI: | 10.1007/s11661-016-3674-5 |
| Popis: | Precipitation of fine alloy nitrides near the specimen surface results in significant surface hardening in nitriding of alloyed steels. In this study, a simulation model of alloy nitride precipitation during nitriding is developed for Fe-M binary system based upon the Kampmann–Wagner numerical model in order to predict variations in the distribution of precipitates with depth. The model can predict the number density, average radius, and volume fraction of alloy nitrides as a function of depth from the surface and nitriding time. By a comparison with the experimental observation in a nitrided Fe-Cr alloy, it was found that the model can predict successfully the observed particle distribution from the surface into depth when appropriate solubility of CrN, interfacial energy between CrN and α, and nitrogen flux at the surface are selected. |
| Databáze: | OpenAIRE |
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