Effect of Ti additive on (Cr, Fe)7C3 carbide in arc surfacing layer and its refined mechanism

Zhou, Yefei; Yang, Yong; Yang, Jian; Hao, Feifei; Li, Da; Ren, Xuejun; Yang, Qingxiang

doi:10.1016/j.apsusc.2012.03.101

Cited by 52 publications

(23 citation statements)

References 13 publications

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“…Therefore, the excellent abrasive wear resistance of sample S3′ can be due to its good hardness, wettability, and toughness. The hardness of HCCI is mainly determined by the M(M = Cr, Fe) 7 C 3 carbide [ 28 ] and the addition of Ni element can markedly improve the hardness of composites. In addition, Cu element also plays a dominant role in the improvement of the matrix toughness.…”

Section: Resultsmentioning

confidence: 99%

Compression Performance and Abrasive Wear Resistance of CuNi‐Modified Zirconium Oxide‐Toughened Alumina Particles‐Reinforced Iron Matrix Composites

Jiang

et al. 2021

Physica Status Solidi (a)

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Compact and continuous Ni‐coated zirconium oxide‐toughened alumina (ZTA) particles (ZTAp@Ni) and CuNi‐coated ZTA particles (ZTAp@CuNi) are prepared by electroless deposition. The thicknesses of the Ni and CuNi coatings are 6.84 and 21.35−43.10 μm, respectively. The ZTAp@Ni‐ and ZTAp@CuNi‐reinforced high‐chromium cast iron (HCCI) composites are fabricated by nonpressure cast‐infiltration method. Results show that compact interfacial bonding is formed in S3′‐ZTAp@CuNi/HCCI without any casting defect. The addition of Ni element can effectively improve the amount of (Cr,Fe)7C3 and refine the grains in HCCI matrix, and Cu element can improve the strength and toughness of the matrix. The compression performance testing shows that the compressive strength and yield strength of S3′‐ZTAp@CuNi/HCCI are up to 1128.03 and 1049.40 MPa, respectively. In addition, three‐body abrasive testing demonstrates that the abrasive wear resistance of the S3′‐ZTAp@CuNi/HCCI is optimal. This can be attributed to the compact combination between ZTAp@CuNi and HCCI matrix, which benefits the load transfer and the protection of ZTA particles to avoid brittle fracture and debonding. So, the appropriate additions of Cu and Ni elements, that is, the thickness and content control of CuNi coatings on ZTA surfaces, are very crucial for the performance improvement of composites.

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Section: Resultsmentioning

confidence: 99%

Compression Performance and Abrasive Wear Resistance of CuNi‐Modified Zirconium Oxide‐Toughened Alumina Particles‐Reinforced Iron Matrix Composites

Jiang

et al. 2021

Physica Status Solidi (a)

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“…14 Ti can be used for the heterogeneous nucleation of graphite and austenite and promote the heterogeneous nucleation of grains and refine grains. 16 The microstructure obtained when Cr and Ti were added together is shown in Figure 3(d) and the XRD pattern is shown in Figure 4.…”

Section: Resultsmentioning

confidence: 99%

Microstructure and wear resistance of red mud iron alloy with chromium and titanium

Zhou

Kang

Wei

et al. 2021

Composites and Advanced Materials

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Red mud is a solid waste in the production of alumina from bauxite. Red mud iron alloy (RMIA) is prepared from the red mud and laterite nickel ore via the high-temperature carbothermal reduction smelting and refining. Herein, by adjusting the contents of chromium (Cr) and titanium (Ti) in RMIA, low alloy cast iron with high hardness and wear resistance was obtained. Optical emission spectrometer, optical microscope, scanning electron microscopy, and hardness and two-body wear test were used for characterization. The results show that the addition of either Cr or Ti element can lead to carbide formation and refining of graphite. With an increase in the content of Cr or Ti, the hardness and the wear resistance of the alloy were enhanced, and the effect of Cr element was better than that of Ti element. The optimal microstructure and properties of the alloy were obtained at 4.8%Cr0.36%Ti, at which stage, the network eutectic carbide structure disappeared and evenly distributed in the matrix, and meanwhile, the graphite morphology was refined. The hardness of the alloy was higher than high chromium cast iron (HCCI), and the wear resistance of the modified alloy was better than HCCI under low load. The aim of this work is to provide a reference for the preparation of wear-resistant ferroalloys from the red mud directly via high-temperature carbothermal reduction.

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“…[18][19][20] The microstructural analysis results of the grain refinement with the RE addition are satisfactory with the findings of the existing literature, in which, it has been mentioned that RE is very useful element in refining the microstructure. 5,22,[24][25][26][27]…”

Section: Microstructural Characterizationmentioning

confidence: 99%

“…Most of the previously reported studies are based on investigating the microstructural 1 IIT Roorkee, Roorkee, India properties [16][17][18][19][20][21] of iron-based hardfaced alloys either by utilizing cerium oxide (Ce 2 O 3 ) or lanthanum oxide (La 2 O 3 ). 5,[16][17][18][19][20][21][22][23][24][25][26][27][28] Very few studies have been conducted to analyze the wear behavior of RE additive alloys and that too are focused either on the abrasive 5,[22][23][24][25]27 or on erosive wear. 26 The literature review indicated that no one has ascertained the effect of RE on the impact-sliding wear characteristics of high manganese iron-based alloys.…”

Section: Introductionmentioning

confidence: 99%

Modeling the impact–sliding wear characteristics of rare earth additive iron-based hardfacing alloys

Singla

Dwivedi

Arora

2017

Proceedings of the Institution of Mechanical Engineers, Part J:

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This paper presents a systematic study of the effect of the cerium oxide content on the mechanical, microstructural and tribological properties of iron-based alloys. The results indicate that the microstructure of the hardfaced alloys is mainly composed of austenite, MC and M7C3 carbides. The primary austenite grain size was refined at first and then coarsened with the increase of the rare earth oxide additions. Meanwhile, the hardness of the hardfacing alloy was also increased. The increased area fraction of carbides was found to be beneficial for enhanced wear resistance. A statistical regression model was developed and verified with a number of test cases in order to evaluate the adequacy of the model. The optimal amount of rare earth was found to be less than 6 wt.%; below this composition, the microstructural, mechanical and tribological properties were excellent.

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Effect of Ti additive on (Cr, Fe)7C3 carbide in arc surfacing layer and its refined mechanism

Cited by 52 publications

References 13 publications

Compression Performance and Abrasive Wear Resistance of CuNi‐Modified Zirconium Oxide‐Toughened Alumina Particles‐Reinforced Iron Matrix Composites

Compression Performance and Abrasive Wear Resistance of CuNi‐Modified Zirconium Oxide‐Toughened Alumina Particles‐Reinforced Iron Matrix Composites

Microstructure and wear resistance of red mud iron alloy with chromium and titanium

Modeling the impact–sliding wear characteristics of rare earth additive iron-based hardfacing alloys

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