Investigating the effect of Al, Mo or Mn addition to CoCrFeNi entropy alloys on the interface binding properties of WC/HEA cemented carbides

Fu, Liang; Du, Jin; Su, Guosheng; Zhang, Peirong; Zhang, Chongyan

doi:10.1016/j.mtcomm.2023.105891

Cited by 6 publications

(2 citation statements)

References 29 publications

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“…R PEER REVIEW 4 of 16 The physical and mechanical properties of WC-HEA alloy were evaluated [22], including relative density, hardness (HV), fracture toughness (KIC), and bending strength (TRS), and they are presented in Table 1. To assess the material s flexural strength, strength tests were conducted using the universal testing machine AGS-X5KN (Shimadzu, Kyoto, Japan).…”

Section: Experimental Materialsmentioning

confidence: 99%

Investigation of the Machined Surface Integrity of WC-High-Entropy Alloy Cemented Carbide

Yin,

Du,

Sun

et al. 2024

Metals

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A fine-grained WC-15wt%Al0.5CoCrFeNi cemented carbide was prepared through a vacuum and gas pressure sintering. For achieving high surface integrity, diamond wheel grinding serves as the primary molding process for the machining of WC cemented carbide. To reveal the influence of grinding on the surface integrity of fine-grained WC-HEA cemented carbide, studies were conducted on grinding force, surface microstructure, surface roughness, residual stress, microhardness, and bending strength. The morphological analysis of the ground surface indicated a transition in the material removal mechanism of WC-HEA cemented carbide from ductile removal to brittle removal, with brittle removal becoming predominant as the depth of grinding increases. With the increasing depth of grinding, the grinding force increases, and the grinding force increases while the surface roughness decreases. Correspondingly, there is an improvement in both hardness and bending strength. Additionally, grinding induces high residual compressive stress on the surface, with a maximum compressive stress of 1795 MPa. The bending strength of the material is found to be dependent on the residual stress.

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Section: Experimental Materialsmentioning

confidence: 99%

Investigation of the Machined Surface Integrity of WC-High-Entropy Alloy Cemented Carbide

Yin,

Du,

Sun

et al. 2024

Metals

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“…On the other hand, Co is a type of rare metal and is a strategic resource [8][9][10]. Reducing the usage of Co or developing substitute elements has been always a hot topic among materials researchers [2,7,[11][12][13][14]. In this case, it is of great worth to explore alternative binder phases to replace the traditional Co in WC-based cermet.…”

Section: Introductionmentioning

confidence: 99%

Microstructure, Mechanical Properties and Wear Behaviors of Ultrafine-Grain WC-Based Cermets with Different Binder Phases Fabricated by Spark Plasma Sintering

Xu,

Wang,

Cao

et al. 2024

Materials

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In this work, to explore potential substitutions for the Co binder phase, ultrafine-grain WC-based cermets with various binder phases of Co, Ni and AlCoCrNiFeCu HEA were prepared using the SPS method. Based on SPS, WC-based cermets were fabricated at higher speed, showing fine carbide particles less than 410 μm. The microstructure, mechanical properties and wear properties were systematically evaluated. By comparison, the grain size of WC was the lowest for WC-10Co, while WC-10 HEA cermet held the coarsest WC particles. The hardness and fracture toughness of WC-10 HEA were the best among all three samples, with values of 93.2 HRA and 11.3 MP·m1/2. However, the bending strength of WC-10HEA was about 56.1% lower than that of WC-10Co, with a value of 1349.6 MPa. The reduction in bending strength is attributed to the lower density, formation of a newly Cr-Al rich phase and coarser WC grains. In dry sliding wear conditions, WC-10 HEA showed the lowest wear rate (0.98 × 10−6 mm3/(N·m)) and coefficient of friction (0.19), indicating the best wear resistance performance. This reveals that WC-based cermet with a HEA binder phase has superior wear performance due to the higher hardness and good self-lubricating effect of the wear products.

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Research and prospect of novel WC-HEA cemented carbide

Li,

Yang,

Shen

et al. 2023

Int J Adv Manuf Technol

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Investigating the effect of Al, Mo or Mn addition to CoCrFeNi entropy alloys on the interface binding properties of WC/HEA cemented carbides

Cited by 6 publications

References 29 publications

Investigation of the Machined Surface Integrity of WC-High-Entropy Alloy Cemented Carbide

Investigation of the Machined Surface Integrity of WC-High-Entropy Alloy Cemented Carbide

Microstructure, Mechanical Properties and Wear Behaviors of Ultrafine-Grain WC-Based Cermets with Different Binder Phases Fabricated by Spark Plasma Sintering

Research and prospect of novel WC-HEA cemented carbide

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