22-36 INFLUENŢA PARAMETRILOR DE SINTERIZARE ASUPRA DURITĂŢII SINTERIZATELOR DIN PULBERE DE FIER DWP 400
The present paper is focused on the hardness of iron powder DWP
400 parts sintered in endogas. The effect of sintering parameters is studied.
There were prepared cylindrical specimens pressed at 600 MPa and sintered in
endogas at the temperature of 1120 0C and 900 0C for 30/60 minutes. Sintered
specimens were analyzed by optical microscopy, micro-hardness test and
macrohardness measurements. Increasing the temperature and duration of
sintering leads to a linear increase of hardness of specimens, influencing
strongly the density and the microstructure.
Cuvinte cheie: sinterizare, duritate, pulbere fier
Keywords: sintering, hardness, iron powder