Abstract
The hardness and mechanical properties of the U10 steel (1.03 wt % C) with pearlite structures that were formed by isothermal decomposition at temperatures of 650°C (coarse-lamellar pearlite) and 500°C (fine-lamellar pearlite) as well as upon subsequent annealing of fine-lamellar pearlite at a temperature of 650°C for 10–300 min have been studied upon tensile tests. Fractures of the steel with different types of pearlite structure have been examined using scanning electron microscopy. The interrelation between the mechanical properties and the structural features and character of fracture has been analyzed for this steel with pearlite structures differing in the dispersity, morphology, and defect structure of cementite, and in the levels of solid-solution strengthening and microdistortions of the ferrite-constituent lattice.
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Original Russian Text © A.V. Makarov, R.A. Savrai, V.M. Schastlivtsev, T.I. Tabatchikova, L.Yu. Egorova, 2007, published in Fizika Metallov i Metallovedenie, 2007, Vol. 104, No. 5, pp. 542–555.
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Makarov, A.V., Savrai, R.A., Schastlivtsev, V.M. et al. Mechanical properties and fracture upon static tension of the high-carbon steel with different types of pearlite structure. Phys. Metals Metallogr. 104, 522–534 (2007). https://doi.org/10.1134/S0031918X07110129
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DOI: https://doi.org/10.1134/S0031918X07110129