The aim of this work was to determine TTT diagram of medium carbon V-N micro-alloyed steel with emphasis on the development of intragranular ferrite morphologies. The isothermal treatment was carried out at 350, 400, 450, 500, 550 and 600°C. These treatments were interrupted at different times in order to analyze the evolution of the microstructure. Metallographic evaluation was done using optical and scanning electron microscopy (SEM). The results show that at high temperatures (≥ 500°C) polygonal intragranulary nucleated ferrite idiomorphs, combined with grain boundary ferrite and pearlite were produced and followed by an incomplete transformation phenomenon. At intermediate temperatures (450, 500°C) an interloced acicular ferrite (AF) microstructure is produced, and at low temperatures (400, 350°C) the sheave of parallel acicular ferrite plates, similar to bainitic sheaves but intragranularly nucleated were observed. In addition to sheaf type acicular ferrite, the grain boundary nuc...leated bainitic sheaves are observed.
TY - JOUR
AU - Fadel, Abdunnaser
AU - Glišić, Dragomir
AU - Radović, Nenad
AU - Drobnjak, Đorđe
PY - 2013
UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2380
AB - The aim of this work was to determine TTT diagram of medium carbon V-N micro-alloyed steel with emphasis on the development of intragranular ferrite morphologies. The isothermal treatment was carried out at 350, 400, 450, 500, 550 and 600°C. These treatments were interrupted at different times in order to analyze the evolution of the microstructure. Metallographic evaluation was done using optical and scanning electron microscopy (SEM). The results show that at high temperatures (≥ 500°C) polygonal intragranulary nucleated ferrite idiomorphs, combined with grain boundary ferrite and pearlite were produced and followed by an incomplete transformation phenomenon. At intermediate temperatures (450, 500°C) an interloced acicular ferrite (AF) microstructure is produced, and at low temperatures (400, 350°C) the sheave of parallel acicular ferrite plates, similar to bainitic sheaves but intragranularly nucleated were observed. In addition to sheaf type acicular ferrite, the grain boundary nucleated bainitic sheaves are observed.
PB - University of Belgrade, Technical Faculty, Bor
T2 - Journal of Mining and Metallurgy B: Metallurgy
T1 - Intragranular ferrite morphologies in medium carbon vanadium-micro alloyed steel
EP - 244
IS - 3
SP - 237
VL - 49
DO - 10.2298/JMMB120820001F
ER -
@article{
author = "Fadel, Abdunnaser and Glišić, Dragomir and Radović, Nenad and Drobnjak, Đorđe",
year = "2013",
abstract = "The aim of this work was to determine TTT diagram of medium carbon V-N micro-alloyed steel with emphasis on the development of intragranular ferrite morphologies. The isothermal treatment was carried out at 350, 400, 450, 500, 550 and 600°C. These treatments were interrupted at different times in order to analyze the evolution of the microstructure. Metallographic evaluation was done using optical and scanning electron microscopy (SEM). The results show that at high temperatures (≥ 500°C) polygonal intragranulary nucleated ferrite idiomorphs, combined with grain boundary ferrite and pearlite were produced and followed by an incomplete transformation phenomenon. At intermediate temperatures (450, 500°C) an interloced acicular ferrite (AF) microstructure is produced, and at low temperatures (400, 350°C) the sheave of parallel acicular ferrite plates, similar to bainitic sheaves but intragranularly nucleated were observed. In addition to sheaf type acicular ferrite, the grain boundary nucleated bainitic sheaves are observed.",
publisher = "University of Belgrade, Technical Faculty, Bor",
journal = "Journal of Mining and Metallurgy B: Metallurgy",
title = "Intragranular ferrite morphologies in medium carbon vanadium-micro alloyed steel",
pages = "244-237",
number = "3",
volume = "49",
doi = "10.2298/JMMB120820001F"
}
Fadel, A., Glišić, D., Radović, N.,& Drobnjak, Đ.. (2013). Intragranular ferrite morphologies in medium carbon vanadium-micro alloyed steel. in Journal of Mining and Metallurgy B: Metallurgy
University of Belgrade, Technical Faculty, Bor., 49(3), 237-244.
https://doi.org/10.2298/JMMB120820001F
Fadel A, Glišić D, Radović N, Drobnjak Đ. Intragranular ferrite morphologies in medium carbon vanadium-micro alloyed steel. in Journal of Mining and Metallurgy B: Metallurgy. 2013;49(3):237-244.
doi:10.2298/JMMB120820001F .
Fadel, Abdunnaser, Glišić, Dragomir, Radović, Nenad, Drobnjak, Đorđe, "Intragranular ferrite morphologies in medium carbon vanadium-micro alloyed steel" in Journal of Mining and Metallurgy B: Metallurgy, 49, no. 3 (2013):237-244,
https://doi.org/10.2298/JMMB120820001F . .
