engleski

Influence of stretching rate on the beginning of cold deformation in niobium microalloyed steel

Today, steel is the most widespread material in the world. Studies have shown that microalloyed steel with titanium or niobium has better mechanical properties than other steels. Good mechanical properties include high toughness, deformability, resistance and strength. Such properties are achieved by an appropriate combination of chemical composition and thermomechanical processing parameters. In this paper has been examined the behaviour of low- carbon steel microalloyed with 0.035% niobium on the start of plastic flow of material. Researches were conducted by static tensile test and digital image correlation. Obtained results have shown that the stretching rate has an influence on the start of the plastic flow of niobium microalloyed steel.

digital image correlation, static tensile test, start of plastic flow of steel, microalloyed steel

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