Maja Vončina (Avtor), Tilen Balaško (Avtor), Jože Medved (Avtor), Aleš Nagode (Avtor)

Povzetek

During the die-casting process as well as the hot forming process, the tool is subjected to complex thermal, mechanical, and chemical stresses that can cause various types of damage to different parts of the tool. This study was carried out to determine the resistance of various tool steels, i.e., UTOPMO1, HTCS-130, and W600, in molten Al99.7 aluminum alloy at a temperature of 700 °C. The formation kinetics of the interaction layer between the molten aluminum and tool steels was studied using differential scanning calorimetry. Light and field-emission scanning electron microscopy were used to analyze the thickness and nature of the interaction layers, while thermodynamic calculations using the Thermo-Calc software were used to explain the results. The stability of the HTCS-130 and W600 tool steels is better than the stability of the UTOPMO1 tool steel in the molten Al99.7 aluminum. Two interaction layers were formed, which in all cases indicate an intermetallic Al$_{13}$Fe$_4$ layer near the aluminum alloy and an intermetallic Al$_5$Fe$_2$ layer near the tool steels, containing small round carbides. It was confirmed that Ni reduces the activity of aluminum in the ferrite matrix and causes a reduction in the thickness of the intermetallic layer.

Ključne besede

tool steel–molten aluminum interaction;reaction layers;intermetallic phases;thermal analysis;thermodynamics;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UL NTF - Naravoslovnotehniška fakulteta
UDK: 669
COBISS: 89284099 Povezava se bo odprla v novem oknu
ISSN: 1996-1944
Št. ogledov: 89
Št. prenosov: 18
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Vrsta dela (COBISS): Članek v reviji
Strani: str. 1-12
Letnik: ǂVol. ǂ14
Zvezek: ǂiss. ǂ24
Čas izdaje: 2021
DOI: 10.3390/ma14247708
ID: 15288099