Effect of Niobium and Vanadium Additions on the As-Cast Microstructure and Properties of Hypoeutectic Fe-Cr-C Alloy
Apstrakt
The effect of niobium and vanadium additions (0.5 mass% and 2 mass%) on the as-cast microstructure and properties of hypoeutectic white cast iron containing 19 mass% Cr and 2.9 mass% C, has been examined. NbC carbides present in the structure of tested Fe-Cr-CNb alloys, due to their characteristic morphology, show higher wear resistance and toughness than M7C3 carbides. Increasing amount of this type of carbides, caused by the increase of niobium in the alloy, contributes to the improvement of wear resistance and dynamic fracture toughness. The alloy containing 2% Nb gives the best compromise between wear resistance and fracture toughness. This alloy shows about 23% greater dynamic fracture toughness and about 25% greater abrasion wear resistance than the basic Fe-Cr-C alloy. Besides, the secondary carbides which precipitate in the matrix regions of the tested Fe-Cr-C-V white irons also influence the abrasion behaviour and fracture toughness. The alloy containing 0.5% V has approximate...ly the same fracture toughness but lower wear resistance than alloy with 2% Nb.
Ključne reči:
Fe-Cr-C alloys / carbides / matrix microstructure / hardness / fracture toughness / wear resistanceIzvor:
ISIJ International, 2013, 53, 12, 2160-2166Izdavač:
- Iron Steel Inst Japan Keidanren Kaikan, Tokyo
DOI: 10.2355/isijinternational.53.2160
ISSN: 0915-1559
WoS: 000328928000018
Scopus: 2-s2.0-84893289766
Institucija/grupa
Tehnološko-metalurški fakultetTY - JOUR AU - Filipović, Mirjana AU - Kamberović, Željko AU - Korać, Marija AU - Jordović, Branka PY - 2013 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2467 AB - The effect of niobium and vanadium additions (0.5 mass% and 2 mass%) on the as-cast microstructure and properties of hypoeutectic white cast iron containing 19 mass% Cr and 2.9 mass% C, has been examined. NbC carbides present in the structure of tested Fe-Cr-CNb alloys, due to their characteristic morphology, show higher wear resistance and toughness than M7C3 carbides. Increasing amount of this type of carbides, caused by the increase of niobium in the alloy, contributes to the improvement of wear resistance and dynamic fracture toughness. The alloy containing 2% Nb gives the best compromise between wear resistance and fracture toughness. This alloy shows about 23% greater dynamic fracture toughness and about 25% greater abrasion wear resistance than the basic Fe-Cr-C alloy. Besides, the secondary carbides which precipitate in the matrix regions of the tested Fe-Cr-C-V white irons also influence the abrasion behaviour and fracture toughness. The alloy containing 0.5% V has approximately the same fracture toughness but lower wear resistance than alloy with 2% Nb. PB - Iron Steel Inst Japan Keidanren Kaikan, Tokyo T2 - ISIJ International T1 - Effect of Niobium and Vanadium Additions on the As-Cast Microstructure and Properties of Hypoeutectic Fe-Cr-C Alloy EP - 2166 IS - 12 SP - 2160 VL - 53 DO - 10.2355/isijinternational.53.2160 ER -
@article{ author = "Filipović, Mirjana and Kamberović, Željko and Korać, Marija and Jordović, Branka", year = "2013", abstract = "The effect of niobium and vanadium additions (0.5 mass% and 2 mass%) on the as-cast microstructure and properties of hypoeutectic white cast iron containing 19 mass% Cr and 2.9 mass% C, has been examined. NbC carbides present in the structure of tested Fe-Cr-CNb alloys, due to their characteristic morphology, show higher wear resistance and toughness than M7C3 carbides. Increasing amount of this type of carbides, caused by the increase of niobium in the alloy, contributes to the improvement of wear resistance and dynamic fracture toughness. The alloy containing 2% Nb gives the best compromise between wear resistance and fracture toughness. This alloy shows about 23% greater dynamic fracture toughness and about 25% greater abrasion wear resistance than the basic Fe-Cr-C alloy. Besides, the secondary carbides which precipitate in the matrix regions of the tested Fe-Cr-C-V white irons also influence the abrasion behaviour and fracture toughness. The alloy containing 0.5% V has approximately the same fracture toughness but lower wear resistance than alloy with 2% Nb.", publisher = "Iron Steel Inst Japan Keidanren Kaikan, Tokyo", journal = "ISIJ International", title = "Effect of Niobium and Vanadium Additions on the As-Cast Microstructure and Properties of Hypoeutectic Fe-Cr-C Alloy", pages = "2166-2160", number = "12", volume = "53", doi = "10.2355/isijinternational.53.2160" }
Filipović, M., Kamberović, Ž., Korać, M.,& Jordović, B.. (2013). Effect of Niobium and Vanadium Additions on the As-Cast Microstructure and Properties of Hypoeutectic Fe-Cr-C Alloy. in ISIJ International Iron Steel Inst Japan Keidanren Kaikan, Tokyo., 53(12), 2160-2166. https://doi.org/10.2355/isijinternational.53.2160
Filipović M, Kamberović Ž, Korać M, Jordović B. Effect of Niobium and Vanadium Additions on the As-Cast Microstructure and Properties of Hypoeutectic Fe-Cr-C Alloy. in ISIJ International. 2013;53(12):2160-2166. doi:10.2355/isijinternational.53.2160 .
Filipović, Mirjana, Kamberović, Željko, Korać, Marija, Jordović, Branka, "Effect of Niobium and Vanadium Additions on the As-Cast Microstructure and Properties of Hypoeutectic Fe-Cr-C Alloy" in ISIJ International, 53, no. 12 (2013):2160-2166, https://doi.org/10.2355/isijinternational.53.2160 . .