Steel KODUR 460MC under Creep Condition

Abstract:

This paper analyses a failure of the micro alloyed steel (R_e= 500MPa) at a temperature range 400 - 500 ^oC in the tensile test conditions and in the creep conditions. The failure character in condition tensile test was changeless and the fraction was transcrystalline ductile. The structure near a fraction showed a considerable deformation texture (reduction of area = 76%). The contraction and the fraction stress considerable was decreased by the increase of the time up to the fraction and the by the increase of temperature in the creep conditions. There were formed secondary intercrystalline cracks except the central crack in the area fraction. Intercrystalline cracks were started step by step to be connected each other. The fraction was started to obtain a mixed status alike and the intercrystalline (creep) fraction part was started to increase.

• Periodical: Key Engineering Materials (Volume 635)
• Pages: 161-164
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.635.161
• Online since: December 2014
• Authors: Mária Mihaliková*, Elena Čižmárová
• Keywords: Creep, Fracture Stress, Micro Alloyed Steel, Tensile Test

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