Effect of oxidation on thermal fatigue behavior of cast tungsten carbide particle/steel substrate surface composite

Shan, Quan; Zhou, Zaifeng; Li, Zulai; Jiang, Yehua; Gao, Fan; Zhang, Lei

doi:10.1557/jmr.2019.83

Cited by 4 publications

(3 citation statements)

References 32 publications

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“…The chemical composition of the interface ( point 2 in Fig. 6(a) ) is 26.28 at.% Fe + 72.01 at.% W, the atomic number ratios of Fe and W are all close to 1: 1, combining with the XRD pattern shows that it is Fe 3 W 3 C, that is WC particle edge melting W 2 C reacts with Fe to form interface Fe 3 W 3 C [17]:…”

Section: Resultsmentioning

confidence: 91%

Effects of Different Matrix on Interface and Compression Fracture Behavior of WC Particles Reinforced Iron Matrix Composites

Chen

Shan

et al. 2018

MSF

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The WC particles reinforced iron matrix composites were prepared by utilizing energy ball milling powder mixed and vacuum powder sintering method in this paper. The effects of two kinds of matrix on the micro-structure, interface and fracture mechanism of the composites were studied emphatically, and it provided a theoretical guidance for the design and engineering application of particle reinforced metal matrix composites. The results show that: in the two kinds of matrix composites, WC particles and interface had different degree of melting, WC particles and the matrix were metallurgical combination; ferritic matrix composites had better compressibility than pearlite matrix composites (1089Mpa); the fracture mode of ferrite matrix composites was quasi-cleavage fracture and pearlite matrix composites was pure cleavage fracture; the compressive micro-cracks of the two matrix composites generated at the interface and expand at the interface to a broad macroscopic crack, which eventually the material fails.

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Section: Resultsmentioning

confidence: 91%

Effects of Different Matrix on Interface and Compression Fracture Behavior of WC Particles Reinforced Iron Matrix Composites

Chen

Shan

et al. 2018

MSF

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“…When the average particle size of WC powder is 200 nm, it can be seen that W, Fe and Co elements have obvious diffusion at the interface in the transition region, as shown in Figure 9a. Shan [20] studied the microstructure of the composite interface of tungsten carbide-reinforced surface composites with Figure 9 is the SEM micrograph and EDS image of the interface of WC/HSS composites prepared using tungsten carbide powder with particle sizes of 200 nm and 500 nm at 1300 • C. Using the same sintering temperature of 1300 • C, the left side of the image is WC and the right side is M2 high-speed steel. The main elements detected by surface scanning are Fe, W, Cr and Co.…”

Section: Composite Interface Microstructure and Element Diffusionmentioning

confidence: 99%

“…When the average particle size of WC powder is 200 nm, it can be seen that W, Fe and Co elements have obvious diffusion at the interface in the transition region, as shown in Figure 9a. Shan [20] studied the microstructure of the composite interface of tungsten carbide-reinforced surface composites with different particle sizes. It was found that the solubility of tungsten carbide particles in the matrix decreased with the increasing of the size of tungsten carbide particles.…”

Section: Composite Interface Microstructure and Element Diffusionmentioning

confidence: 99%

Effect of Particle Size on Microstructure and Element Diffusion at the Interface of Tungsten Carbide/High Strength Steel Composites

Zhang

Liang

et al. 2019

Materials

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The microstructure and micro-hardness of tungsten carbide/high strength steel (WC/HSS) composites with different particle sizes were analyzed by optical microscopy (OM), scanning electron microscopy (SEM), ultra-high temperature laser confocal microscopy (UTLCM) and micro-hardness testing. The composites were prepared by cold pressing and vacuum sintering. The results show that WC density tends to increase as the average grain size of WC decreases and the micro-hardness of WC increases with the decrease of WC particle size. The micro-hardness of WC near the bonding interface is higher than that in other regions. When the particle size of WC powder particles is 200 nm, a transition layer with a certain width is formed at the interface between WC and HSS, and the combination between the two materials is metallurgical. The iron element in the HSS matrix diffuses into the WC structure in contact with it, resulting in a fusion layer of a certain width, and the composite interface is relatively well bonded. When the average particle size of WC powder is 200 nm, W, Fe and Co elements significantly diffuse in the transition zone at the interface. With the increase of WC particle size, the trend of element diffusion decreases.

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Kinetics in low-temperature-isothermal oxidation of tungsten carbide under different humidity conditions

Qi,

Dai,

Chen

et al. 2024

Ceramics International

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Effect of oxidation on thermal fatigue behavior of cast tungsten carbide particle/steel substrate surface composite

Abstract: Abstract

Cited by 4 publications

References 32 publications

Effects of Different Matrix on Interface and Compression Fracture Behavior of WC Particles Reinforced Iron Matrix Composites

Effects of Different Matrix on Interface and Compression Fracture Behavior of WC Particles Reinforced Iron Matrix Composites

Effect of Particle Size on Microstructure and Element Diffusion at the Interface of Tungsten Carbide/High Strength Steel Composites

Kinetics in low-temperature-isothermal oxidation of tungsten carbide under different humidity conditions

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