Recent Advances in Study of Solid-Liquid Interfaces and Solidification of Metals

Zaeem, Mohsen Asle

doi:10.3390/met8020120

Cited by 1 publication

(1 citation statement)

References 11 publications

(12 reference statements)

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“…The growth of the cladding layer structure is controlled by the direction of maximum heat flow loss, and the columnar crystals (or columnar dendrites) have directional solidification characteristics. Therefore, in the process of plasma surfacing, the microstructure is mainly determined by the solidification rate, R, and the temperature gradient, G [27]. In the process of plasma overlay welding, due to the rapid heat dissipation of the substrate at the bottom of the molten pool, the maximum temperature direction of the cladding layer is perpendicular to the surface of the substrate, and the temperature gradient, G, is relatively high.…”

Section: Charpy Impact Behavior Of the Surfacing Layer At The Evaluat...mentioning

confidence: 99%

Microstructure and Mechanical and Impact Behaviors of WC-Particle-Reinforced Nickel-Based Alloy Surfacing Layers at Evaluated Temperatures

Zhang

et al. 2023

Metals

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A WC-particle-reinforced nickel-based alloy surfacing layer was fabricated on 42CrMo ultra-high-strength steel. The microstructure and the mechanical and impact-damage behaviors of the surfacing layers at the evaluated temperatures were investigated using X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX) and the Vickers hardness tester. Results showed that these WC particles gradually changed from elongated and crisscross needle-like phases to blocks with the increase in impact temperature. Numerous carbide phases (e.g., (Cr,Ni,Fe)23C6) and γ-Ni phases were formed in the substrate matrix. The surfacing layer showed a typical brittle fracture, and the impact energy decreased with the increase in temperature. Moreover, the surfacing layer showed a clear quasi-cleavage fracture morphology without dimples after a 600 °C impact test but exhibited a mixture of dimple fractures and cleavage fractures after the 200 °C and 400 °C impact tests. The Vickers fracture toughness test showed that the average hardness of the surfacing layer after a 600 °C impact test was 383 HV1.0, which is about 0.8 times that after the 200 °C impact test. In addition, the WC particles in the surfacing layer after the 600 °C impact test showed the highest fracture toughness, but the corresponding Ni40A binder phase possessed the lowest fracture toughness.

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Section: Charpy Impact Behavior Of the Surfacing Layer At The Evaluat...mentioning

confidence: 99%

Microstructure and Mechanical and Impact Behaviors of WC-Particle-Reinforced Nickel-Based Alloy Surfacing Layers at Evaluated Temperatures

Zhang

et al. 2023

Metals

View full text Add to dashboard Cite

show abstract

Recent Advances in Study of Solid-Liquid Interfaces and Solidification of Metals

Abstract: Solidification occurs in several material processing methods, such as in casting, welding, and laser additive manufacturing of metals, and it controls the nano- and microstructures, as well as the overall properties of the products[...]

Cited by 1 publication

References 11 publications

Microstructure and Mechanical and Impact Behaviors of WC-Particle-Reinforced Nickel-Based Alloy Surfacing Layers at Evaluated Temperatures

Microstructure and Mechanical and Impact Behaviors of WC-Particle-Reinforced Nickel-Based Alloy Surfacing Layers at Evaluated Temperatures

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