Effect of microstructure on mitigating tool wear in diamond turning of nitrided steels
| Autor: | Shuntaro Terauchi, Masaya Shirakawa, Daisuke Hirooka, Yasuhiro Iwasa, Naomichi Furushiro, Tomomi Yamaguchi, Shigehiro Matsuda |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
inorganic chemicals
0209 industrial biotechnology Materials science Metallurgy technology industry and agriculture General Engineering chemistry.chemical_element Diamond 02 engineering and technology Diamond turning Nitride engineering.material 021001 nanoscience & nanotechnology Microstructure Carbide Chromium 020901 industrial engineering & automation chemistry otorhinolaryngologic diseases engineering Tool wear 0210 nano-technology Nitriding |
| Zdroj: | Precision Engineering. 54:388-395 |
| ISSN: | 0141-6359 |
| DOI: | 10.1016/j.precisioneng.2018.07.008 |
| Popis: | Tools used in diamond turning of steels undergo severe tool wear. In this study, several steels were heat-treated and nitrided to investigate the wear mitigating effect of the microstructure of nitrided steels. The results indicate that the tool wear is mitigated with increase in the chromium content of steel. The results also indicate that chromium carbides are transformed into chromium nitrides by nitriding. Thermodynamic analyses demonstrated that chromium nitrides are stable when in contact with diamond at the cutting temperature. Further, the ratio of iron nitrides to iron increased because the iron levels decreased as the chromium levels increased. Although diamond reacts with iron nitrides, the interaction is considerably weaker than that with iron. |
| Databáze: | OpenAIRE |
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