Effect of temperature and strain on microstructure refinement in low carbon microalloyed steel during multi-axis deformation process
| Autor: | Fenglian Liu, Baocun Zhao, Rongjie Xu, Jing Yang, Guiyan Li |
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| Rok vydání: | 2013 |
| Předmět: |
Materials science
Strain (chemistry) Metallurgy Metals and Alloys chemistry.chemical_element engineering.material Condensed Matter Physics Microstructure Forging chemistry Mechanics of Materials Solid mechanics Materials Chemistry engineering Nanometre Microalloyed steel Deformation (engineering) Carbon |
| Zdroj: | Metals and Materials International. 19:549-553 |
| ISSN: | 2005-4149 1598-9623 |
| DOI: | 10.1007/s12540-013-3024-8 |
| Popis: | Multi-axis deformation (MAD) tests were performed on a low carbon microalloyed steel with different process parameters. The effect of temperature and strain on the microstructure evolution were analyzed. The strain reversal effect was observed from the comparison between the microstructure resulting from the MAD process and the one from a uniaxial deformation process. However, with 0.3 strain per pass and the alternating compression time equal to 10 or more during the MAD process, ultra fine structures were obtained at deformation temperature below 800 °C. Due to the microalloyed elements in the tested steel, nanometer sized precipitates were introduced under MAD conditions, which also contributed to the microstructure refinement. |
| Databáze: | OpenAIRE |
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