Transactions of FAMENA, Vol. 37 No. 1, 2013.
Original scientific paper
A LOW TEMPERATURE ALUMINIZING TREATMENT OF HOT WORK TOOL STEEL
Božidar Matijević
orcid.org/0000-0002-4077-0646
; Faculty of Mechanical Engineering, University of Zagreb, Zagreb, Croatia
Abstract
Conventional aluminizing processes by pack cementation are typically carried out at elevated temperatures. A low temperature powder aluminizing technology was applied to the X40CrMoV5-1 hot tool steel. The aluminizing temperature was from 550 °C to 620 °C. Effects of temperature and time on the microstructure and phase evolution were investigated. Also, the intermetallic layer thickness was measured in the aluminized layer of a steel substrate. The cross-sectional microstructures, the aluminized layer thickness, and the oxide layer were studied. Scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), and glow discharge optical spectroscopy (GDOS) were applied to observe the cross-sections and the distribution of elements.
Keywords
low temperature pack aluminizing; aluminium oxide coatings; high pressure die casting; reactive soldering
Hrčak ID:
99726
URI
Publication date:
22.4.2013.
Visits: 1.566 *