2015•University of Maribor digital library (University of Maribor)Open access

Dependence of hardness and impact energy on cooling time Δt8/5 and temperature for S960QL

Ivan Samarđžić, Marko Dunđer, Tomaž Vuherer

Abstract

The paper deals with research into dependence of hardness and impact energy of thermal cycle simulated specimens of fine-grained structural steel S960QL on cooling time from 800 to 500 °C and on tested temperature.Results were obtained by measuring hardness of HV 10 and by experimental testing of Charpy notched tubes on instrumented Charpy hammer.Total impact energy, initiation energy and fracture propagation energy needed for occurrence of fracture is also elaborated.

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Key concepts: Materials science, Energy (signal processing), Thermodynamics, Mechanics, Metallurgy, Mathematics, Physics, Statistics