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 . .

TY  - JOUR
AU  - Fadel, Abdunnaser
AU  - Glišić, Dragomir
AU  - Radović, Nenad
AU  - Drobnjak, Đorđe
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2154
AB  - The effect of austenitizing temperature and Cr, Mo and Mn addition on microstructure and mechanical properties of V microalloyed medium carbon steel has been studied by means of metallography and mechanical testing. The addition of Cr, Mn and Mo leads to a decrease in yield strength (YS) by approximate 100 MPa in comparison to the base steel. It is assumed that Mn and Mo increase hardenability by promoting the formation of bainitic sheaves (BS), i.e. by suppressing the formation of ferrite-pearlite and acicular ferrite (FP-AF). Cr at the level used in this work is not that effective. Presence and packet size of bainitic sheaves decrease the Charpy V-notch impact energy at 20 degrees C (CVN20) in comparison to ferrite-pearlite and acicular ferrite microstructures.
PB  - Journal Mater Sci Technol, Shenyang
T2  - Journal of Materials Science & Technology
T1  - Influence of Cr, Mn and Mo Addition on Structure and Properties of V Microalloyed Medium Carbon Steels
EP  - 1058
IS  - 11
SP  - 1053
VL  - 28
DO  - 10.1016/S1005-0302(12)60172-8
ER  - 

@article{
author = "Fadel, Abdunnaser and Glišić, Dragomir and Radović, Nenad and Drobnjak, Đorđe",
year = "2012",
abstract = "The effect of austenitizing temperature and Cr, Mo and Mn addition on microstructure and mechanical properties of V microalloyed medium carbon steel has been studied by means of metallography and mechanical testing. The addition of Cr, Mn and Mo leads to a decrease in yield strength (YS) by approximate 100 MPa in comparison to the base steel. It is assumed that Mn and Mo increase hardenability by promoting the formation of bainitic sheaves (BS), i.e. by suppressing the formation of ferrite-pearlite and acicular ferrite (FP-AF). Cr at the level used in this work is not that effective. Presence and packet size of bainitic sheaves decrease the Charpy V-notch impact energy at 20 degrees C (CVN20) in comparison to ferrite-pearlite and acicular ferrite microstructures.",
publisher = "Journal Mater Sci Technol, Shenyang",
journal = "Journal of Materials Science & Technology",
title = "Influence of Cr, Mn and Mo Addition on Structure and Properties of V Microalloyed Medium Carbon Steels",
pages = "1058-1053",
number = "11",
volume = "28",
doi = "10.1016/S1005-0302(12)60172-8"
}

Fadel, A., Glišić, D., Radović, N.,& Drobnjak, Đ.. (2012). Influence of Cr, Mn and Mo Addition on Structure and Properties of V Microalloyed Medium Carbon Steels. in Journal of Materials Science & Technology
Journal Mater Sci Technol, Shenyang., 28(11), 1053-1058.
https://doi.org/10.1016/S1005-0302(12)60172-8

Fadel A, Glišić D, Radović N, Drobnjak Đ. Influence of Cr, Mn and Mo Addition on Structure and Properties of V Microalloyed Medium Carbon Steels. in Journal of Materials Science & Technology. 2012;28(11):1053-1058.
doi:10.1016/S1005-0302(12)60172-8 .

Fadel, Abdunnaser, Glišić, Dragomir, Radović, Nenad, Drobnjak, Đorđe, "Influence of Cr, Mn and Mo Addition on Structure and Properties of V Microalloyed Medium Carbon Steels" in Journal of Materials Science & Technology, 28, no. 11 (2012):1053-1058,
https://doi.org/10.1016/S1005-0302(12)60172-8 . .