Strength enhancement possibilities of low carbon steels

• Autorzy: Greger M. , Kocich R. , Kander L. , Dorociáková G.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The paper analyses methods of grain refinement and demonstrates development of structure and properties of metallic materials after severe plastic deformations (SPD). Design/methodology/approach: Technology ARB was experimentally verified. The material was rolled in 11 passes. Rolling proceeded at temperature 650 ̊C, with heating in furnace with inert atmosphere (Ar). Findings: True strain has achieved the value 9. Basic relations between magnitude of deformation, grain refinement and resulting mechanical properties were described. Bonding of degree was greater than 90%. Practical implications: ARB method is one of instrument for acquirement materials with ultrafine grain structure. Is it very simply apparatus, which can be used in practical technology (classical rolling mill). Originality/value: Development of structure was verified on low carbon steel. Obtained grain size was around 0.3 μm. Properties obtained by tensile test did not achieve the expected value. Grain size was homogenous in whole volume.

Słowa kluczowe

EN

plastic forming; ultra-fine grain structure; mechanical properties

PL

kształtowanie plastyczne; struktura drobnoziarnista; właściwości mechaniczne

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2006
• Tom: Vol. 18, nr 1-2
• Strony: 359--362
• Opis fizyczny: Bibliogr. 15 poz., rys., tab., wykr.

Twórcy

autor

Greger M.

• Faculty of Metallurgy and Materials Engineering, VSB-Technical University of Ostrava, Czech Republic

autor

Kocich R.

• Faculty of Metallurgy and Materials Engineering, VSB-Technical University of Ostrava, Czech Republic

autor

Kander L.

• VÍTKOVICE - Research and Development, Ltd., Ostrava Vítkovice, Czech Republic

autor

Dorociáková G.

• Faculty of Metallurgy and Materials Engineering, VSB-Technical University of Ostrava, Czech Republic

Bibliografia

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