Influence of Reheating Temperature and Vanadium Content on Transformation Behavior and Mechanical Properties of Medium Carbon Forging Steels
Апстракт
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. 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 CVN(20) impact energy increases on changing the microstructure from bainitic ferrite to the fine ferrite-pearlite and acicular ferrite.
Кључне речи:
V-microalloyed steels / medium-carbon steels / bainite / acicular ferriteИзвор:
ISIJ International, 2010, 50, 4, 601-606Издавач:
- Iron Steel Inst Japan Keidanren Kaikan, Tokyo
DOI: 10.2355/isijinternational.50.601
ISSN: 0915-1559
WoS: 000276860100016
Scopus: 2-s2.0-77953622732
Институција/група
Tehnološko-metalurški fakultetTY - JOUR AU - Glišić, Dragomir AU - Radović, Nenad AU - Koprivica, Ankica AU - Fadel, Abdunnaser AU - Drobnjak, Đorđe PY - 2010 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1689 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. 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 CVN(20) impact energy increases on changing the microstructure from bainitic ferrite to the fine ferrite-pearlite and acicular ferrite. PB - Iron Steel Inst Japan Keidanren Kaikan, Tokyo T2 - ISIJ International T1 - Influence of Reheating Temperature and Vanadium Content on Transformation Behavior and Mechanical Properties of Medium Carbon Forging Steels EP - 606 IS - 4 SP - 601 VL - 50 DO - 10.2355/isijinternational.50.601 ER -
@article{ author = "Glišić, Dragomir and Radović, Nenad and Koprivica, Ankica 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. 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 CVN(20) impact energy increases on changing the microstructure from bainitic ferrite to the fine ferrite-pearlite and acicular ferrite.", publisher = "Iron Steel Inst Japan Keidanren Kaikan, Tokyo", journal = "ISIJ International", title = "Influence of Reheating Temperature and Vanadium Content on Transformation Behavior and Mechanical Properties of Medium Carbon Forging Steels", pages = "606-601", number = "4", volume = "50", doi = "10.2355/isijinternational.50.601" }
Glišić, D., Radović, N., Koprivica, A., Fadel, A.,& Drobnjak, Đ.. (2010). Influence of Reheating Temperature and Vanadium Content on Transformation Behavior and Mechanical Properties of Medium Carbon Forging Steels. in ISIJ International Iron Steel Inst Japan Keidanren Kaikan, Tokyo., 50(4), 601-606. https://doi.org/10.2355/isijinternational.50.601
Glišić D, Radović N, Koprivica A, Fadel A, Drobnjak Đ. Influence of Reheating Temperature and Vanadium Content on Transformation Behavior and Mechanical Properties of Medium Carbon Forging Steels. in ISIJ International. 2010;50(4):601-606. doi:10.2355/isijinternational.50.601 .
Glišić, Dragomir, Radović, Nenad, Koprivica, Ankica, Fadel, Abdunnaser, Drobnjak, Đorđe, "Influence of Reheating Temperature and Vanadium Content on Transformation Behavior and Mechanical Properties of Medium Carbon Forging Steels" in ISIJ International, 50, no. 4 (2010):601-606, https://doi.org/10.2355/isijinternational.50.601 . .