Improvement of wear resistance of some cold working tool steels
| Autor: | Kazimierz Czechowski, P. Rusek, Daniel Toboła, Witold Brostow |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
Metallurgy Abrasive Titanium alloy 02 engineering and technology Surfaces and Interfaces Tribology engineering.material 021001 nanoscience & nanotechnology Condensed Matter Physics Thermal diffusivity Burnishing (metal) Surfaces Coatings and Films 020303 mechanical engineering & transports 0203 mechanical engineering Mechanics of Materials Powder metallurgy Tool steel Materials Chemistry engineering 0210 nano-technology Nitriding |
| Zdroj: | Wear. :29-39 |
| ISSN: | 0043-1648 |
| DOI: | 10.1016/j.wear.2017.03.023 |
| Popis: | There are two basic options for improvement of surfaces of heat treated tool steels for cold working: mechanical treatment such as burnishing, or else chemical modification such as nitriding. The latter is affected not only by the nature of the chemical agent but also by diffusivity of that agent through the steel. We focus first on the number and order of operations performed on the steel surfaces: turned+burnished (T+B), turned+nitrided (T+B) and turned+burnished+nitrided (T+B+N). We have investigated two tool steels, Sverker 21 (AISI D2) and Vanadis 6. The former belongs to traditional steels, the latter is classified as advanced powder metallurgy (P/M) alloyed steel. We have performed pin-on-disc tribological experiments to determine abrasive friction and wear. Our evaluation of tribological properties of these two cold working steels enables an improvement of their manufacturing procedures leading to significant wear reduction. The improvement proposed is applicable not only to tool steels but also for instance to titanium alloys. |
| Databáze: | OpenAIRE |
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