Enhancing stability of Co gradient in nano-structured WC&amp;ndash;Co functionally graded composites using graphene additives

Nasser, Ali; Shinagawa, Kazunari; El-Hofy, Hassan; Moneim, Ahmed Abd El

doi:10.2109/jcersj2.16148

Cited by 7 publications

(4 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…WC-CO has become one of the most common materials for many applications requiring high temperature and high wear resistance like cutting tool in manufacturing industry [7]. It also includes machining of cast iron, various non-ferrous metals, etc.…”

Section: Wc-co-based Cutting Tool Materialsmentioning

confidence: 99%

“…Das et al [32] studied that graphene attracts particular interest due to its novel properties like high thermal conductivity, high mechanical strength and self-lubricating properties etc. Ali Nasser et al [7] used another methodology for stabilizing a predesigned Co gradient in the microstructure of nano-WC-Co thinning structure via graphene additions is presented. For this purpose, laminated specimens of green WC-Co functionally graded material, having three layers structured, with and without graphene additions in the intermediate layer were sintered at solid and liquid sintering temperatures of 1290 and 1400°C, respectively, using the hot isostatic pressing technique (HIP).…”

Section: Previous Work On Fabrication Of Tungsten Carbide-cobalt-base...mentioning

confidence: 99%

See 1 more Smart Citation

Graphene Composite Cutting Tool for Conventional Machining

Saini¹,

Sidhu²,

Gill³

2023

Graphene - A Wonder Material for Scientists and Engineers

View full text Add to dashboard Cite

Cutting is an important process in the manufacturing industry and cutting tool is an important element in machining. It is essential to use good quality cutting tools in arrange to maintain the quality of a product. To retain the performance of cutting tool, various techniques have been utilized like cutting fluid, cutting under MQL, coating, multilayer coating, cryoprocessing, different types of surface texturing, different types of solid lubricants, etc. All these processes have a great impact to enhance the mechanical, thermal, and tribological properties in case of conventional machining process. Nowadays composite engineered materials are very successful in metal cutting industry due to its wear-related application and excellent mechanical and thermal properties. A very few research has been carried out on graphene mixed composite tool material, which has very high demand in manufacturing industries, due to its application as a cutting tool material for machining of Al, copper, or high strength carbon steel. In the end, challenges in the processing of tungsten carbide graphene mixed self-lubricated tool have been identified from the literature. In parallel, the latest improvements to enhance the properties of tungsten carbide-cobalt cutting tool with graphene mixed are reviewed.

show abstract

Section: Wc-co-based Cutting Tool Materialsmentioning

confidence: 99%

Section: Previous Work On Fabrication Of Tungsten Carbide-cobalt-base...mentioning

confidence: 99%

Graphene Composite Cutting Tool for Conventional Machining

Saini¹,

Sidhu²,

Gill³

2023

Graphene - A Wonder Material for Scientists and Engineers

View full text Add to dashboard Cite

show abstract

“…Yuan et al [3] demonstrated that the physical and tribology performances of WC-Co hardmetal are enhanced by adding graphene plated with Nickel. Nasser et al [4] designed a Co gradient structure in WC-Co hardmetal by manipulating graphene as a stabilizer to its Co gradient, resulting in the cemented carbide with an improved mechanical property. Chen et al [5] added graphene into the cemented carbide and the flexural strength was improved by ~50% accompanied by unabated hardness.…”

Section: Introductionmentioning

confidence: 99%

Toughening Effect of Graphene Oxide in WC-Co Cemented Carbide

Gu¹,

Zhang²,

Zhang³

et al. 2023

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

To study the effect of graphene oxide (GO) addition on the microstructure and mechanical properties of WC-Co cemented carbides, sintered bulks were fabricated and characterized. The study shows that the GO added in cemented carbide have insignificant effect on the relative density and the crystalline size, therefore, the higher hardness is maintained. Moreover, the fracture toughness has increased by 29.1%. Bridging is found to be the main toughening mechanism in WC-Co-GO cemented carbide. GO can be expected to be used to prepare cemented carbide with both high hardness and high fracture toughness.

show abstract

“…Taking into account the interest attracted by FGMs and ceramic/graphene composites, the aim of the present work is to take one step forward and merge both strategies, i.e., to develop continuous functionally graded Si 3 N 4 /graphene composites. Presently, there are scarce works devoted to graphene-based FGMs, most of them focused on polymeric matrices [10], although some studies related to WC ceramics can be found [11,12]. In these works, WC layers with distinct cobalt contents were stacked and liquid phase sintered.…”

Section: Introductionmentioning

confidence: 99%

In Situ Graded Ceramic/Reduced Graphene Oxide Composites Manufactured by Spark Plasma Sintering

et al. 2020

View full text Add to dashboard Cite

The present work merges two key strategies for the manufacturing of advanced ceramics, in particular, the development of functionally graded materials (FGMs) and the addition of graphene-based fillers into a ceramic matrix. A silicon nitride/reduced graphene oxide FGM composite is produced, in one step, from a single powder composition using the spark plasma sintering (SPS) technique with an asymmetric setting of the punches and die to create a continuous temperature gradient along the cross section of the powder compact. A deep microstructural and mechanical characterization has been done across the specimen thickness. The FGM composite exhibits bottom-top gradients in both the matrix grain size (150% increase) and α-phase content (89→1%). The FGM bottom surface is 10% harder than the top one and, on the other hand, the latter is 15% tougher. The presence of reduced graphene oxide sheets homogeneously distributed within the ceramic composite reduces the mechanical gradients compared to the monolithic silicon nitride FGM, although allows reaching a maximum long-crack toughness value of 9.4 MPa·m1/2. In addition, these graphene-based fillers turn the insulating ceramics into an electrical conductor material.

show abstract

Enhancing stability of Co gradient in nano-structured WC–Co functionally graded composites using graphene additives

Cited by 7 publications

References 22 publications

Graphene Composite Cutting Tool for Conventional Machining

Graphene Composite Cutting Tool for Conventional Machining

Toughening Effect of Graphene Oxide in WC-Co Cemented Carbide

In Situ Graded Ceramic/Reduced Graphene Oxide Composites Manufactured by Spark Plasma Sintering

Contact Info

Product

Resources

About