Pregled bibliografske jedinice broj: 1183021
Effect of heat treatment on charpy impact energy of microalloyed HSLA steel Niomol 490K
Effect of heat treatment on charpy impact energy of microalloyed HSLA steel Niomol 490K // Proceedings: 11th scientific-research symposium with international participation, Zenica, Bosnia and Herzegovina: metallic and nonmetallic materials : production - properties – application / Bušatlić, Ilhan (ur.).
Zenica: University of Zenica, Faculty of Metallurgy and Technology, 2016. str. 67-76 (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
CROSBI ID: 1183021 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Effect of heat treatment on charpy impact energy of
microalloyed HSLA steel Niomol 490K
Autori
Kosec, Gorazd ; Tuma, Jelena Vojvodič ; Gojić, Mirko ; Kosec, Borut ; Bizjak, Milan ; Nagode, Aleš
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
Proceedings: 11th scientific-research symposium with international participation, Zenica, Bosnia and Herzegovina: metallic and nonmetallic materials : production - properties – application
/ Bušatlić, Ilhan - Zenica : University of Zenica, Faculty of Metallurgy and Technology, 2016, 67-76
ISBN
978-9958-785-32-2
Skup
11th scientific-research symposium with international participation: metallic and nonmetallic materials: production - properties – application
Mjesto i datum
Zenica, Bosna i Hercegovina, 21.04.2016. - 22.04.2016
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
high strength low alloy (HSLA) steel, heat treatment, Charpy impact energy, testing
Sažetak
High strength low alloy (HSLA) steels represents a group of low carbon steels that utilise small amaunts of alloying elements, such as Mo, Ti, V and Nb, to attain yield strengths in excess of 275 MPa in the as rolled condition. The main properties of HSLA steels that make them for wide variety of applications are: strength and toughness, corrosion resistance, weldability and cost effectiveness. The high strength low alloyed (HSLA) structural steel Niomol 490K, produced in steelwork ACRONI, Jesenice, Slovenia with the microstructure of dispersion of cementite particles in ferrite, with linear grain size of aproximately 2.5 m and the yield stress of 490 MPa has been investigated. Heat treatment of the steel Niomol 490K consisted from austenitisation at 920 oC for 10 minutes and reheating up to 1250 oC for 5 seconds. After austenitization the quenching was carried out in both water (temperature of 70 oC) and lead bath up to 400 oC following cooling on air. It was found that Charpy impact energy is higher and the transition temperature is lower for transformation of austenite to bainite than to martensite microstructure. Experimantal results showed that different fracture surface observed.
Izvorni jezik
Engleski
Znanstvena područja
Metalurgija
