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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

Sažetak

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.

Ključne riječi

low temperature pack aluminizing; aluminium oxide coatings; high pressure die casting; reactive soldering

Hrčak ID:

99726

URI

https://hrcak.srce.hr/99726

Datum izdavanja:

22.4.2013.

Posjeta: 2.022 *