Naslov
Study of microstructural changes at thermomechanical treatment of steel

Autori
Rešković Stoja, Novosel-Radović Vjera, Preloščan Andrija

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

Izvornik
Tweltfth European Crystallographic Meeting, Collected Abstracts, Vol.1/3, Moscow, USSR / V. I. Simonov (USSR) - Moskva : The Soviet Nationat Committee of Crystallographers and Institute of Crystallography of the USSR Academy of Sciences on behalf of the European Crystallographic Committee, 1989, 519-519

Skup
TWELFTH EUROPEAN CRYSTALLOGRAPHIC MEETING

Mjesto i datum
Moskva, SSSR, 20.08.1989. - 29.08.1989

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
microalloyed steel; microstructure; X-rey diffraction; transmission electron microanallisis

Sažetak
The interaction of precipitation, strengthening and softening mechanism in final phase of thermomechanical treatment of the steel microalloyed by niobium has been studiedusing electron microscopy and X-rey diffraction methods. For the study the samples of deformaed steel, collected successively in the phase of final thermomechanical treatment have been used. The samples were prepared by grinding, deep etching and foli method. The prepared samples were tested ono transmission electron microscope, type JEOL-2000EX and diffractometric system, type Philips, using CoKα radiation. Forther measurement the line profiles of diffraction reflections: 110, 200 and 211 of Fe have been used. The diffraction line profiles have been corrected by Stocks method. The microstructure parameters: Domain sizes and r m s strain have been determined by the method of Warren and Averbach and dislocation density by Williamson and Smallman. The obtained results indicate that with the increase of deformation rate, r m s strain and dislocation density increase and domain size decrease due to Nb precipitates dnd dislocation movement determined by TEM.

Izvorni jezik
Engleski

Znanstvena područja
Metalurgija

POVEZANOST RADA