THE INFLUENCE OF ANISOTHERMAL HARDENING ON THE LOW CARBON STEEL PROPERTIES

  • 1Department of Mechanical Engineering, Institute of Technology and Business in Ceske Budejovice, Ceske Budejovice, CZ
  • 2Departmen of Civil Engineering, Institute of Technology and Business in Ceske Budejovice, Ceske Budejovice, CZ

Abstract

The purpose of hardening is the increase the hardness of the steel by creating an imbalanced structure. High hardness can be achieved by the formation of a martensitic structure. In some specific cases, we try to obtain a bainitic structure when hardening. In real hardening processes, a martensitic structure is usually achieved on the surface of the body, producing a mixture of martensite, bainite and other types of microstructures in the core of the body. The contribution deals with the influence of anisothermal hardening on selected mechanical properties of EN ISO S235JR (G2) steel. The observed values are the HBW hardness, Rm strength and hardness A. At the hardness measurement locations, the structural steel compositions are metallographically evaluated in the surface of hardened and non-hardened samples that are mutually compared. Subsequently, the influence of hardening on the examined mechanical properties and dependencies descibing the correlation of the structure and hardness of the hardened steels is deduced.

Recommended articles

CURRENT ADVANCES IN HIGH AVERAGE POWER DIODE-PUMPED LASERS

Martin Hanus, Martin Divoky, Petr Navratil, Michal Chyla, Jan Pilar, Ondrej denk, Antonio Lucianetti
Keywords: High | power | diode | Laser

INTENSITY DISTRIBUTION MODULATION OF MULTIPLE BEAM INTERFERENCE PATTERN

Dominika Jochcova, Jan Kaufman, Petr Hauschwitz, Jan Brajer, Jan Vanda
Keywords: Direct Laser Interference Patterning | multiple beam interference | interference field simulation | Diffractive Optical Element | laser microstructuring

LASER FACILITY SAFETY CONTROL SYSTEM

Pavel Trojanek, Martina Rehakova, Pavel Crha
Keywords: safety | control system | Interlock | Laser | laser beam distribution | Programmable Logic Controller | PLC

KERR LENS MODE-LOCKED THIN DISK OSCILATOR DEVELOPMENT AT HILASE

Martin Cimrman, Martin Smrz
Keywords: Thin disk laser | mode locking | femtosecond laser | Yb:YAG | laser oscillator | Kerr lens | high power laser