ArticleMaterials (Basel, Switzerland)2025
Effects of Nickel and Iron Content on the Microstructures and Mechanical Properties of Cemented Carbide with Coarse and Fine-Grained Heterostructures.
Article in Materials (Basel, Switzerland), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Cemented carbides are composite materials that combine both structural and functional properties. However, the inherent trade-off between strength and toughness presents a significant challenge in fully leveraging the synergistic potential of these dual-phase materials. In this study, cemented carbides with coarse and fine-grained heterogeneous structure were fabricated. The effects of nickel (Ni) and iron (Fe) content on the microstructures and mechanical properties of these heterogeneously structured cemented carbides were systematically investigated. Microstructural analysis revealed that the fine-grained granules are uniformly embedded in the coarse-grained region, forming a typical network-like mixed-grain structure. The introduction of the heterogeneous structure enables cemented carbides to achieve a remarkable balance of high strength and toughness. Specifically, the materials exhibit optimal strength-toughness matching with a transverse rupture strength of 2949 MPa, a fracture toughness of 23.65 MPa·m
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