Effect of various morphology of in situ generated NbC particles on the wear resistance of Fe-based cladding

Xi, Wenchao; Song, Baoyan; Sun, Zhengyu; Yu, Tianbiao; Wang, Jun; Sun, Qizhen

doi:10.1016/j.ceramint.2022.11.206

Cited by 10 publications

(2 citation statements)

References 27 publications

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“…Thus, it can be pointed out that increasing test loads (1 N to 4 N) for 1Zr alloy was insignificantly on the wear due to the containing these types of coherent secondary precipitates with the matrix in contrast to 4Zr alloy. It was reported that the maximizing the nano-sized particles within the grains and minimizing the volume fraction and size of the precipitates at the grain boundaries increase the wear resistance [34,35]. It is expected that the increased Zr content for 4Zr alloy results in higher secondary precipitates at the grain boundaries due to the heterogeneous nucleation weakening the wear characteristic of 4Zr alloy under the increased test loads.…”

Section: Discussionmentioning

confidence: 99%

Wear behavior of in-situ oxide dispersion strengthened Fe-8Ni alloy with Zr additions

Tekin¹,

Muhaffel

Kotan

et al. 2023

J Met Mater Miner

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In this study, in-situ oxide dispersion strengthened (ODS) Fe91Ni8Zr1 and Fe88Ni8Zr4 alloys were produced by combination of high energy mechanical alloying (HEMA) and high temperature equal channel angular extrusion (HT-ECAE). The wear behaviors of the consolidated samples were investigated under different loads from 1 N to 4 N by reciprocating wear tests at room temperature. The Scanning electron microscopy (SEM) was used to examine the wear tracks to analyze the wear characteristics as a function of applied loads. The relative comparison of the wear results showed that under the lower loads of 1 N and 2 N, Fe88Ni8Zr4 alloy has lower wear rate than Fe91Ni8Zr1 alloy whereas under the higher loads of 3 N and 4 N, it is vice versa. Additionally, the friction coefficient of Fe91Ni8Zr1 alloy was found to be lower than that of Fe88Ni8Zr4 alloy under all the applied loads. The results were comparatively discussed with respect to microstructural features of 1 at% Zr and 4 at% Zr containing ODS alloys produced by HEMA followed by ECAE. The obtained results of ODS alloys with different grain size, precipitate size, and number density of the precipitates, may disclose a new sight for using such alloys in wear applications just as cutting tools, turbine blades, and discs.

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Section: Discussionmentioning

confidence: 99%

Wear behavior of in-situ oxide dispersion strengthened Fe-8Ni alloy with Zr additions

Tekin¹,

Muhaffel

Kotan

et al. 2023

J Met Mater Miner

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“…Common ceramic particle reinforcement phases include NbC, M 7 C 3 , WC, Al 2 O 3 , etc Amongst these phases, NbC possesses theoretical hardness and elastic modulus that can attain values of 23.5 GPa and 338 GPa, respectively. As strengthening phases, NbC and Fe have good wettability, resistance to interfacial reactions, and good semi-coherence between them [17,18]. When NbC is formed in situ in steel, it generally exhibits spherical, hemispherical, or nearly square sugar-like rounded structure in the nano, submicron, and micron scale.…”

Section: Introductionmentioning

confidence: 99%

Thermal/kinetic study of the formation mechanism of NbC-Fe composite layer on the surface of GCr15 prepared by hot pressure diffusion

Zhao

Yao

Wang

et al. 2023

Mater. Res. Express

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In this study, an NbC-Fe composite layer is in-situ prepared on the surface of GCr15 bearing steel. The formation mechanism of the composite layer was investigated in terms of thermodynamics, dynamics, and crystal structure transformation processes during the in-situ reaction. According to computational thermodynamics, the reaction at 1150-1200℃ allows NbC, Fe3C, Cr3C2, Cr7C3, and Cr23C6 phases to spontaneously react and stabilize in the Fe-C-Nb-CR system. The functional relationship between the growth thickness, time, and temperature of the NbC-Fe composite layer was obtained experimentally and via computational dynamics. Particularly, the growth activation energy, Q, of the NbC-Fe composite layer was calculated to be 367.06 kJ/mol. The combination of computational thermodynamic/kinetic research and experimental observation of crystal transformation data revealed that the formation mechanism of NbC in the NbC-Fe layer on the surface of GCr15 caused the C atoms in the bearing steel diffuse into the Nb plate and occupy the octahedral gap of the Nb unit cell to form NbC. In the formation mechanism of the NbC-Fe composite layer, C and Fe atoms partially migrated from the pearlite and diffused towards the direction of the Nb plate to form the NbC-Fe composite layer.

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Simulated Mechanical Properties of NbC-Fe Composite Material under Tensile Load

Nana,

Congcong,

Yunhua

et al. 2023

J. of Materi Eng and Perform

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Effect of various morphology of in situ generated NbC particles on the wear resistance of Fe-based cladding

Cited by 10 publications

References 27 publications

Wear behavior of in-situ oxide dispersion strengthened Fe-8Ni alloy with Zr additions

Wear behavior of in-situ oxide dispersion strengthened Fe-8Ni alloy with Zr additions

Thermal/kinetic study of the formation mechanism of NbC-Fe composite layer on the surface of GCr15 prepared by hot pressure diffusion

Simulated Mechanical Properties of NbC-Fe Composite Material under Tensile Load

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