RESEARCH REGARDING THE INFLUENCE OF COPPER POWDERS ON TENSILE STRENGTH OF SINTERED STEELS

摘要

The aim of this paper is to present experimental results on the evolution of tensile strength of some low alloyed steels function the copper content. There are prepared six types of mixtures as following: Al (Fe), A2 (Fe+1.5%Cu), A3 (Fe+3%Cu), A4 (Fe+0,2%C), A5 (Fe+0,2%C+1.5%Cu), A6 (Fe+0,2%C+3%Cu). All six mixtures were pressed at 400, 500 respectively 600 MPa and the green parts were subjected to CARBSINT and SINTCARB thermal treatments. The influence of copper content, pressures and type of thermal treatments on the tensile strength was studied.