Effect of vanadium and chromium on the microstructural features of V-Cr-Mn-Ni spheroidal carbide cast irons

Ефременко, В. Г.; Shimizu, Kazumichi; Чейлях, Олександр Петрович; Kozarevskaya, T. V.; Kusumoto, Kenta; Yamamoto, Kazuya

doi:10.1007/s12613-014-1014-6

Cited by 23 publications

(4 citation statements)

References 23 publications

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“…They are characterized by high wear resistance due to the presence, in their structure, of significant volume fractions (VF) of hard phases -carbides, nitrides, borides etc. [19][20][21]. As a rule, these alloys are subjected to bulk heat treatment (HT) in order to increase their hardness and wear performance [22,23].…”

Section: Introductionmentioning

confidence: 99%

Pulsed plasma deposition of Fe-C-Cr-W coating on high-Cr-cast iron: Effect of layered morphology and heat treatment on the microstructure and hardness

Ефременко

Chabak

Lekatou

et al. 2016

Surface and Coatings Technology

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Pulsed plasma treatment was applied for surface modification and laminated coating deposition on 14.5wt%-Cr cast iron. The scopes of the research were: (a) to obtain a microstructure gradient, (b) to study the relationship between cathode material and coating layer microstructure/hardness, and (c) to improve coating quality by applying post-deposition heat treatment. An electrothermal axial plasma accelerator with a gas-dynamic working regime was used as plasma source (4.0 kV, 10 kA). The layered structure was obtained by alternation of the cathode material (T1-18 wt% W high speed steel and 28 wt% Cr-cast iron).

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Section: Introductionmentioning

confidence: 99%

Pulsed plasma deposition of Fe-C-Cr-W coating on high-Cr-cast iron: Effect of layered morphology and heat treatment on the microstructure and hardness

Ефременко

Chabak

Lekatou

et al. 2016

Surface and Coatings Technology

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“…Another option would be altering the chemical composition of PR since the extent of carbide spheroidisation during the welding process depends on the presence of alloying elements, i.e. silicon and vanadium [41][42][43]. Further optimisation of the welding process and comprehensive evaluation of the weld quality are still required to weaken the influence of microstructure difference on the performance of rail welds.…”

Section: Microstructural Characterisationmentioning

confidence: 99%

Ratcheting behaviour of flash butt welds in heat-treated hypereutectoid steel rails under uniaxial and biaxial cyclic loadings

Lai

et al. 2020

International Journal of Mechanical Sciences

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“…Additions of more than 2% titanium would only be possible by using a vacuum induction furnace. To get primary vanadium carbides, at least vanadium amounts of 5% are necessary, other way vanadium only reinforces the M 7 C 3 carbide [14][15][16]. In the case of niobium, most works studying the effect of this carbide-forming element are limited to amounts of less than 3% [11,12,[17][18][19][20][21][22][23] but up to 5% have been also produced along with high amounts of Mo and W [24].…”

Section: Introductionmentioning

confidence: 99%

Niobium Additions to a 15%Cr–3%C White Iron and Its Effects on the Microstructure and on Abrasive Wear Behavior

Bedolla-Jacuinde

Guerra

Mejı́a

et al. 2019

Metals

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From the present study, niobium additions of 1.79% and 3.98% were added to a 15% Cr–3% C white iron, and their effects on the microstructure, hardness and abrasive wear were analyzed. The experimental irons were melted in an open induction furnace and cast into sand molds to obtain bars of 45 mm diameter. The alloys were characterized by optical and electron microscopy, and X-ray diffraction. Bulk hardness was measured in the as-cast conditions and after a destabilization heat treatment at 900 °C for 30 min. Abrasive wear resistance tests were undertaken for the different irons according to the ASTM G65 standard in both as-cast and heat-treated conditions under three loads (58, 75 and 93 N). The results show that niobium additions caused a decrease in the carbon content in the alloy and that some carbon is also consumed by forming niobium carbides at the beginning of the solidification process; thus decreasing the eutectic M7C3 carbide volume fraction (CVF) from 30% for the base iron to 24% for the iron with 3.98% Nb. However, the overall carbide content was constant at 30%; bulk hardness changed from 48 to 55 hardness Rockwell C (HRC) and the wear resistance was found to have an interesting behavior. At the lowest load, wear resistance for the base iron was 50% lower than that for the 3.98% Nb iron, which is attributed to the presence of hard NbC. However, at the highest load, the wear behavior was quite similar for all the irons, and it was attributed to a severe carbide cracking phenomenon, particularly in the as-cast alloys. After the destabilization heat treatment, the wear resistance was higher for the 3.98% Nb iron at any load; however, at the highest load, not much difference in wear resistance was observed. Such a behavior is discussed in terms of the carbide volume fraction (CVF), the amount of niobium carbides, the amount of martensite/austenite in matrix and the amount of secondary carbides precipitated during the destabilization heat treatment.

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Effect of vanadium and chromium on the microstructural features of V-Cr-Mn-Ni spheroidal carbide cast irons

Cited by 23 publications

References 23 publications

Pulsed plasma deposition of Fe-C-Cr-W coating on high-Cr-cast iron: Effect of layered morphology and heat treatment on the microstructure and hardness

Pulsed plasma deposition of Fe-C-Cr-W coating on high-Cr-cast iron: Effect of layered morphology and heat treatment on the microstructure and hardness

Ratcheting behaviour of flash butt welds in heat-treated hypereutectoid steel rails under uniaxial and biaxial cyclic loadings

Niobium Additions to a 15%Cr–3%C White Iron and Its Effects on the Microstructure and on Abrasive Wear Behavior

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