Naslov
Influence of Heat Treatment of High-Speed Steel on its Microstructure, Hardness and Fracture Toughness

Autori
Cajner, Franjo ; Leskovšek, Vojteh ; Pustaić, Dragan

Izvornik
Key Engineering Materials - MATERIALS STRUCTURE & MICROMECHANICS OF FRACTURE - MSMF7 (1013-9826) 592-593 (2014); 680-683

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, original scientific paper, znanstveni

Ključne riječi
Vacuum heat treatment; High-speed steel; Microstructure; Volume fraction of undissolved eutectic carbides; Volume fraction of retained austenite; Correlation between hardness and fracture toughness

Sažetak
The correlation between fracture toughness, hardness and microstructure of vacuum heat-treated high-speed steel AISI M2 was investigated. Our intention was to investigate the influence of microstructural parameters such as the volume fraction of undissolved eutectic carbides, their mean diameter, the mean distance between the carbides, as well as the volume fraction of retained austenite in the matrix, on the above mentioned mechanical and fracture properties. The experimental investigations were performed on the high-speed steel. This steel had the following chemical composition (mass content in %): 0.89% C, 0.20% Si, 0.26% Mn, 0.027% P, 0.001% S, 3.91% Cr, 4.74% Mo, 1.74% V and 6.10% W.

Izvorni jezik
Engleski

Znanstvena područja
Brodogradnja, Strojarstvo, Zrakoplovstvo, raketna i svemirska tehnika

POVEZANOST RADA