Naslov
The effect of long-term annealing at elevated temperature on microstructure and hardness of heat-resistant steel

Autori
Kosec, Ladislav ; Gojić, Mirko ; Kožuh, Stjepan ; Kosec, Borut ; Dražić, Goran ; Šavli, Štefan

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Abstract Booklet 15th International Symposium on Metallography / Longauerova, Margita - Košice : Department of Materials Science, Faculty of Metallurgy, Technical University of Košice, 2013, 94-94

ISBN
978-80-553-1412-9

Skup
METALLOGRAPHY`013

Mjesto i datum
Stará Lesná, Slovačka, 24.04.2013. - 26.04.2013

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
heat-resistant steel; annealing; sigma phase; hardness; fracture surface

Sažetak
The stainless steel group AISI 310 is very often used for application in high-temperature conditions. In this work was investigated the effect of long-term annealing on microstructure and hardness of AISI 310S (24.3% Cr-19.3% Ni – 1.8% Mn – 0.21% Mo – 0.67% Si, wt.%) heat- resistant steel. Microstructural changes and hardness distribution were analyzed after isothermal annealing at 800 °C in the long-term exposure (from 1 to 1740 hours). Microstructure and fracture surface mode were analyzed using scanning electron microscopy (SEM) equipped with energy dispersive X-ray spectroscopy (EDS). It was found that after annealing the sigma phase particles were precipitated at grain boundaries and within austenite grains.

Izvorni jezik
Engleski

Znanstvena područja
Metalurgija

POVEZANOST RADA