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Influence of V and N on Transformation Behavior and Mechanical Properties of Medium Carbon Forging Steels

Authorized Users Only
2010
Authors
Radović, Nenad
Koprivica, Ankica
Glišić, Dragomir
Fadel, Abdunnaser
Drobnjak, Đorđe
Conference object (Published version)
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Abstract
The influence of vanadium and nitrogen on microstructure and mechanical properties of medium-carbon steels has been studied by means of metallography and mechanical testing. Vanadium addition to the low nitrogen steel suppresses the formation of ferrite-pearlite following the low reheating temperatures and microstructure consists of bainitic sheaves. Increasing nitrogen at the same vanadium level promotes the acicular ferrite formation. For high reheating temperatures, dominantly acicular ferrite structure in both the low nitrogen and the high nitrogen vanadium steels is obtained. The results suggest that vanadium in solid solution promotes the formation of bainite, whereas the effect of nitrogen is related to the precipitation of VN particles in austenite with high potency for intragranular nucleation of acicular ferrite and to the precipitation of V(C,N) particles in ferrite with high potency for precipitation strengthening. Addition of both vanadium and nitrogen considerably increas...es the strength level, while CVN20 impact energy increases on changing the microstructure from bainitic ferrite to the fine ferrite-pearlite and acicular ferrite.

Keywords:
V-microalloyed steels / medium-carbon steels / bainite / acicular ferrite
Source:
THERMEC 2009, PTS 1-4, 2010, 638-642, 3459-
Publisher:
  • Trans Tech Publications Ltd, Durnten-Zurich

DOI: 10.4028/www.scientific.net/MSF.638-642.3459

ISBN: 978-087849294-7

WoS: 000281043801238

Scopus: 2-s2.0-75849158712
[ Google Scholar ]
1
1
URI
http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1635
Collections
  • Radovi istraživača / Researchers’ publications (TMF)
Institution/Community
Tehnološko-metalurški fakultet
TY  - CONF
AU  - Radović, Nenad
AU  - Koprivica, Ankica
AU  - Glišić, Dragomir
AU  - Fadel, Abdunnaser
AU  - Drobnjak, Đorđe
PY  - 2010
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1635
AB  - The influence of vanadium and nitrogen on microstructure and mechanical properties of medium-carbon steels has been studied by means of metallography and mechanical testing. Vanadium addition to the low nitrogen steel suppresses the formation of ferrite-pearlite following the low reheating temperatures and microstructure consists of bainitic sheaves. Increasing nitrogen at the same vanadium level promotes the acicular ferrite formation. For high reheating temperatures, dominantly acicular ferrite structure in both the low nitrogen and the high nitrogen vanadium steels is obtained. The results suggest that vanadium in solid solution promotes the formation of bainite, whereas the effect of nitrogen is related to the precipitation of VN particles in austenite with high potency for intragranular nucleation of acicular ferrite and to the precipitation of V(C,N) particles in ferrite with high potency for precipitation strengthening. Addition of both vanadium and nitrogen considerably increases the strength level, while CVN20 impact energy increases on changing the microstructure from bainitic ferrite to the fine ferrite-pearlite and acicular ferrite.
PB  - Trans Tech Publications Ltd, Durnten-Zurich
C3  - THERMEC 2009, PTS 1-4
T1  - Influence of V and N on Transformation Behavior and Mechanical Properties of Medium Carbon Forging Steels
SP  - 3459
VL  - 638-642
DO  - 10.4028/www.scientific.net/MSF.638-642.3459
ER  - 
@conference{
author = "Radović, Nenad and Koprivica, Ankica and Glišić, Dragomir and Fadel, Abdunnaser and Drobnjak, Đorđe",
year = "2010",
abstract = "The influence of vanadium and nitrogen on microstructure and mechanical properties of medium-carbon steels has been studied by means of metallography and mechanical testing. Vanadium addition to the low nitrogen steel suppresses the formation of ferrite-pearlite following the low reheating temperatures and microstructure consists of bainitic sheaves. Increasing nitrogen at the same vanadium level promotes the acicular ferrite formation. For high reheating temperatures, dominantly acicular ferrite structure in both the low nitrogen and the high nitrogen vanadium steels is obtained. The results suggest that vanadium in solid solution promotes the formation of bainite, whereas the effect of nitrogen is related to the precipitation of VN particles in austenite with high potency for intragranular nucleation of acicular ferrite and to the precipitation of V(C,N) particles in ferrite with high potency for precipitation strengthening. Addition of both vanadium and nitrogen considerably increases the strength level, while CVN20 impact energy increases on changing the microstructure from bainitic ferrite to the fine ferrite-pearlite and acicular ferrite.",
publisher = "Trans Tech Publications Ltd, Durnten-Zurich",
journal = "THERMEC 2009, PTS 1-4",
title = "Influence of V and N on Transformation Behavior and Mechanical Properties of Medium Carbon Forging Steels",
pages = "3459",
volume = "638-642",
doi = "10.4028/www.scientific.net/MSF.638-642.3459"
}
Radović, N., Koprivica, A., Glišić, D., Fadel, A.,& Drobnjak, Đ.. (2010). Influence of V and N on Transformation Behavior and Mechanical Properties of Medium Carbon Forging Steels. in THERMEC 2009, PTS 1-4
Trans Tech Publications Ltd, Durnten-Zurich., 638-642, 3459.
https://doi.org/10.4028/www.scientific.net/MSF.638-642.3459
Radović N, Koprivica A, Glišić D, Fadel A, Drobnjak Đ. Influence of V and N on Transformation Behavior and Mechanical Properties of Medium Carbon Forging Steels. in THERMEC 2009, PTS 1-4. 2010;638-642:3459.
doi:10.4028/www.scientific.net/MSF.638-642.3459 .
Radović, Nenad, Koprivica, Ankica, Glišić, Dragomir, Fadel, Abdunnaser, Drobnjak, Đorđe, "Influence of V and N on Transformation Behavior and Mechanical Properties of Medium Carbon Forging Steels" in THERMEC 2009, PTS 1-4, 638-642 (2010):3459,
https://doi.org/10.4028/www.scientific.net/MSF.638-642.3459 . .

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