An investigation of plastic deformation behaviour of Nb-V microalloyed steel produced by powder metallurgy
Küçük Resim Yok
Tarih
2024-10
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
National Library of Serbia
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
In this study, microalloyed Nb-V steel was produced and sintered at 1150 °C for 1 h followed by cooling in furnace. While one of the sintered samples was used in the sintered state, the other was air cooled at 1150 °C for 1 hour after homogenization heat treatment. The remaining samples were deformed at 20%, 40% and 60% in the temperature range of 1150–930 °C and then cooled in air. The microstructure and the formation of precipitates in the samples were investigated using an optic microscope, scanning electron microscope and energy dispersive spectroscopy analyses. It was found that the samples under homogenized and 20%, 40% or 60% deformed conditions had a smaller grain size but higher volume fractions of ferrite. This indicates that grain refinement and ferrite formation are accelerated by the deformation which affects the nucleation rate of the ferrite. The yield strength, hardness and density also increased with increasing deformation rate.
Açıklama
Anahtar Kelimeler
mechanical properties, Metalurgija praha, Microalloyed steels, Microstructure, Mikrolegirani čelici, Mikrostruktura i mehaničke osobine, Powder metallurgy, Termomehanička obrada, Thermomechanical processing
Kaynak
Journal of Mining and Metallurgy, Section B: Metallurgy
WoS Q Değeri
Q3
Scopus Q Değeri
Q3
Cilt
60
Sayı
3
Künye
Taştemür, D., & Gündüz, S. (2024). An investigation of plastic deformation behaviour of Nb-V microalloyed steel produced by powder metallurgy. Journal of Mining and Metallurgy, Section B: Metallurgy.
