Pregled bibliografske jedinice broj: 1001855
Prediction of working stress of quenched and tempered steel and cast steel specimen
Prediction of working stress of quenched and tempered steel and cast steel specimen // 18th International Foundrymen Conference - Coexistence of material science and sustainable technology in economic growth
Sisak, Hrvatska, 2019. str. - (pozvano predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
CROSBI ID: 1001855 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Prediction of working stress of quenched and
tempered steel and cast steel specimen
Autori
Smoljan, Božo ; Iljkić, Dario ; Smokvina Hanza, Sunčana
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Skup
18th International Foundrymen Conference - Coexistence of material science and sustainable technology in economic growth
Mjesto i datum
Sisak, Hrvatska, 15.05.2019. - 17.05.2019
Vrsta sudjelovanja
Pozvano predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
steel, cast steel, heat treatment, mathematical modelling, mechanical properties
Sažetak
In this paper, the prediction of working stress of quenched and tempered steel and cast steel shaft has been done. The method of simulation of working stress was applied in workpiece of complex form. The working stress was characterized by yield strength and toughness. Proposed method was successfully applied in optimization of the manufacturing of quenched and tempered engineering steel components. Starting point in studying of the mechanical properties of steel castings can be the fact that the mechanical properties of steel castings are derived from the mechanical properties of ordinary steel metal matrix reduced by the influence of the typical as-cast structure, i.e. casting defects on those properties. Hardness and yield strength will be unaffected by most defects. Coarse as-cast microstructure of cast steel lowers ductility and toughness, i.e. impact energy and fracture toughness. Estimation of hardness distribution can be based on time, relevant for structure transformation, i.e., time of cooling from 800 to 500 °C (t8/5). Hardness of quenched and tempered steel can be expressed as function of maximal hardness of actual steel, hardness of steel with 50 % of martensite in microstructure, according to the time and temperature of tempering. The algorithm of estimation of yield strength and toughness was based on hardness, HV.
Izvorni jezik
Engleski
Znanstvena područja
Strojarstvo, Temeljne tehničke znanosti
POVEZANOST RADA
Ustanove:
Tehnički fakultet, Rijeka,
Sveučilište Sjever, Koprivnica
