Effect of initial structure and ECAP condition on microstructure and mechanical properties development of medium carbon steel

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26316919%3A_____%2F09%3A%230000186" target="_blank" >RIV/26316919:_____/09:#0000186 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Effect of initial structure and ECAP condition on microstructure and mechanical properties development of medium carbon steel
Original language description
The article focuses on the results from recent experimental of severe plastic deformation of low and medium carbon steel performed at increased temperature. The grain refinement of ferrite-pearlite is described using ECAP severe deformation. The high straining in low carbon steel resulted in extensively elongated ferrite grains with dense dislocation network, randomly recovered and polygonized structure was observed. The tensile strength was increase more then twice, however the ductility reduced distinctively. On the other side, the warm ECAP deformation of medium carbon steel resulted in more progressive recovery but not sufficient grain refinement. As straining increased the dynamic polygonization and recrystallization process became active to formmixture of polygonized subgrains and submicrocrystalline grains having high angle boundaries. The tensile behaviour of the both steels was characterized by strength increase, however the absence of strain hardening period was found do be
Czech name
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Czech description
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Publication year
2009
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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