Contribution on the influence of transformation structures under consideration of austenite deformation
| Autor: | Annett Doktorowski, Dirk Dittrich, Dieter Peisker |
|---|---|
| Rok vydání: | 2001 |
| Předmět: |
Austenite
Materials science Manufacturing process Metallurgy Metals and Alloys Iron alloys chemistry.chemical_element 02 engineering and technology engineering.material 021001 nanoscience & nanotechnology Microstructure 020501 mining & metallurgy 0205 materials engineering Isothermal transformation diagram chemistry engineering Microalloyed steel Deformation (engineering) 0210 nano-technology Titanium |
| Zdroj: | Steel Research. 72:111-114 |
| ISSN: | 0177-4832 |
| DOI: | 10.1002/srin.200100093 |
| Popis: | Hot forming represents a substantial part of the manufacturing process of many steel products. The crucial microstructural transformation process, which influences the characteristics of a steel considerably, is undisputed the γ/α-transformation. A successful aid to the interpretation of possible microstructural transformation processes during cooling from the austenitizing or deformation temperature is the determination and handling of CCT diagrams. In this article two steels are examined which differ only in their titanium content. Dilatometric investigations were performed varying the three parameters' transformation temperature, strain and cooling strategy. The insights gathered are illustrated and discussed with the aid of CCT diagrams. An additional transformation below A c1 with a brief curing reheat up to A c3 + 20 K leads to a substantially finer structure. The exploitation of this effect may be of great industrial importance. |
| Databáze: | OpenAIRE |
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