Metallurgy, Vol. 41 No. 4, 2002.
Original scientific paper
Influence of Strain Rate on Properties of Microalloyed S-MC Steel Grades
E. Čižmárová
J. Micheľ
I. Mamuzić
M. Buršák
Abstract
The influence of strain rate on properties of microalloyed steel for cold drawing of S 315 MC and S 460 MC gra-des was analysed. It has been shown by testing these steel that strain rates in the range from 10-3 up to 1 s-1 do not influence the mechanical properties significantly. Significant strengthening started at strain rates exceeding 2 s-1. It has been shown also that the basic mechanical properties of the coldworked tested steel by 5 to 25 % were not influenced by prestrain at 10-3 to 103 s-1 strain rates. It is supposed according to the results, that the susceptibility to cold work of these steel was not influenced significantly by the strain rates usually used at coldwork (less than 1 s-1) and that the products after coldwork maintain their mechanical properties.
Keywords
Hrčak ID:
128564
URI
Publication date:
1.10.2002.
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