INFLUENCE OF HEAT TREATMENTS WITH CONCETRATED ENERGY SOURCES ON THE ALLOY STEELS MECHANICAL PROPERTIES

Abstract

The results presented in this paper are part of a larger project that includes the study of the heat treatment influence with concentrated sources on the microstructure and mechanical properties, when this are applied to the alloyed steels X210Cr10 and HS 18-0-1. The numerous tests made, show that independently of the studied properties: microstructure, hardness and wear resistance, the heat treatments application with concentrated sources, lead to higher values of the studied properties in comparison with those obtained with the conventional treatments. For some properties, the values can increase up to 245% when are applied the heat treatment with concentrated sources, versus the classical heat treatment. The difference between the properties values obtained by heat treatment with laser and cathode beam not are very high, especially that for some properties the laser heat treatment provides better values but for other properties, those with cathode beam. The study shows that depending on the material, tools destination and of the property whose value is desired to be maximized, will be applied the adequate heat treatment with concentrated sources, more exactly with laser or cathode beam.

Keywords

• alloy steels
• concentrated energy sources
• heat treatment
• mechanical properties