Naslov
The Influence of Microstructure on the Fracture Toughness of Vacuum Heat Treated High-Speed Steel AISI M2

Autori
Leskovšek, Vojteh ; Ule, Boris ; Liščić, Božidar

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the 12th IFHTSE Congress / - , 2000, 97-103

Skup
12. Internation Federation for Heat Treatment and Surface Engineering Congress

Mjesto i datum
Melbourne, Australija, 29.10.2000. - 02.11.2000

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
vacuum heat treatment; high speed steel; fracture toughtness; microstructure

Sažetak
The microstructure of AISI M2 high-speed steel can be substantially modified by vacuum heat treatment in order to optimize the ratio between hardness and fracture toughness. This ratio is significantly affected by the volume fractions of retained austenite and undissolved eutectic carbides, as well as the mean distance between these carbides. Calculated fracture toughness values, which were obtained using a newly developed semi-empirical equation, based on the stress-modified critical strain criterion and the quantified microstrucrural parameters, agreed well with the experimental results.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

POVEZANOST RADA