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Pregled bibliografske jedinice broj: 35295

Effect of the Colling rate on the Hot Ductility and the Mechanism of the Phase Transformation in Solidification of Tool Steels


Kalinuškin, E.; Mamuzić, Ilija; Taran, Ju
Effect of the Colling rate on the Hot Ductility and the Mechanism of the Phase Transformation in Solidification of Tool Steels // Metalurgija, 38 (1999), 3; 137-141 (međunarodna recenzija, članak, znanstveni)


Naslov
Effect of the Colling rate on the Hot Ductility and the Mechanism of the Phase Transformation in Solidification of Tool Steels

Autori
Kalinuškin, E. ; Mamuzić, Ilija ; Taran, Ju

Izvornik
Metalurgija (0543-5846) 38 (1999), 3; 137-141

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Cooling rate; phase transformation; gamma-ferrite; tool steel

Sažetak
The presently used high-speed and other alloyed tool steels are characterized by low hot ductility due to peculiarities of their structure in the cast state resulting from the complex multistage crystallization: L->gamma-ferrite ; L+gamma-ferrite->austenite ; L->austenite+K. The principal peculiarity of the solidification is the peritectic reaction. The investigations carried out using original quenched installation show that in this reaction a thin interlayer of liquid metal appears on the d/g interface, and that this interlayer is connected with the interdendritic melt through gaps in the austenitic envelope. At increased cooling rate fuller completion of the peritectic reaction and smaller austenite grains are obtained, since the diffusion exchange of the alloying components occurs principally through the liquid phase, which penetrate deeply in primary grains. The optimization the cooling rate in the stage of peritectic reaction increases the hot ductility of high-speed steel up to 1.5 times.

Izvorni jezik
Engleski

Znanstvena područja
Metalurgija



POVEZANOST RADA


Projekt / tema
124002

Ustanove
Metalurški fakultet, Sisak

Autor s matičnim brojem:
Ilija Mamuzić, (27862)

Časopis indeksira:


  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


Uključenost u ostale bibliografske baze podataka:


  • Materials Science Citation Index
  • Research Alert
  • Metals Abstract
  • Chemical Abstracts
  • Referativny Zhurnal