Pregled bibliografske jedinice broj: 1051372
The Interdependence of the Degree of Precipitation and Dislocation Density during the Thermomechanical Treatment of Microalloyed Niobium Steel
The Interdependence of the Degree of Precipitation and Dislocation Density during the Thermomechanical Treatment of Microalloyed Niobium Steel // Metals, 10 (2020), 2; 1-11 doi:10.3390/met10020294 (međunarodna recenzija, članak, znanstveni)
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Naslov
The Interdependence of the Degree of
Precipitation and Dislocation Density during the
Thermomechanical Treatment of Microalloyed
Niobium Steel
Autori
Rešković, Stoja ; Slokar Benić, Ljerka ; Lovrenić- Jugović, Martina
Izvornik
Metals (2075-4701) 10
(2020), 2;
1-11
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
niobium microalloyed steel ; thermomechanical processing ; deformation ; precipitation ; dislocation density ; microstructure
Sažetak
In this paper, thermomechanical processing of niobium microalloyed steel was performed with the purpose of determining the interaction between niobium precipitates and dislocations, as well as determining the influence of the temperature of final deformation on the degree of precipitation and dislocation density. Two variants of thermomechanical processing with diffrent final rolling temperatures were carried out. Samples were studied using electrochemical isolation with an atomic absorption spectrometer, transmission electron microscopy, X-ray diffraction analysis, and universal tensile testing with a thermographic camera. The results show that the increase in the density of dislocations before the onset of intense precipitation is insignificant because the recrystallization process takes place simultaneously. It increases with the onset of strain-induced precipitation. In this paper, it is shown that niobium precipitates determine the density of dislocations. The appearance of Lüders bands was noticed as a consequence of the interaction between niobium precipitates and dislocations during the subsequent cold deformation. In both variants of the industrial process performed on the cold deformed strip, Lüders bands appeared.
Izvorni jezik
Engleski
Znanstvena područja
Metalurgija
POVEZANOST RADA
Projekti:
HRZZ-IP-2016-06-1270 - Istraživanja početka plastičnog toka metala kod hladne deformacije (MFSRIP062016) (Rešković, Stoja, HRZZ - 2016-06) ( CroRIS)
Ustanove:
Metalurški fakultet, Sisak
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus