Al2O3–V cutting tools for machining hardened stainless steel

Broniszewski, K.; Woźniak, Jarosław; Kostecki, M.; Czechowski, K.; Jaworska, L.; Olszyna, A.

doi:10.1016/j.ceramint.2015.07.044

Cited by 39 publications

(13 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nowadays, the dispersion of metal particles into brittle ceramic matrixes has been extensively developed as an effective method to solve the brittleness of ceramics 2‐9 . In addition to increased mechanical properties compared to the corresponding monolithic ceramics, these ceramic‐metal composites also show novel electrical, optical, and magnetic functions, along with metal‐like machinability and superplasticity 10‐13 . For example, when conductive metal particles are dispersed into an insulated ceramic matrix, metal particles tend to touch each other to form continuously conductive pathways according to the percolation to make conductive materials.…”

Section: Introductionmentioning

confidence: 99%

Role of CeAl₁₁O₁₈ in reinforcing Al₂O₃/Ti composites by adding CeO₂

Shi

Cho

Goto

et al. 2020

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

Cracks are easily introduced into brittle ceramics during subsequent machining processes and operations, resulting in dramatically degraded mechanical strength. 1 In order to eliminate these surface cracks, it is of great importance to improve fracture toughness to enhance crack resistance. Nowadays, the dispersion of metal particles into brittle ceramic matrixes has been extensively developed as an effective method to solve the brittleness of ceramics. 2-9 In addition to increased mechanical properties compared to the corresponding monolithic ceramics, these ceramic-metal composites also show novel electrical, optical, and magnetic functions, along with metal-like machinability and superplasticity. 10-13 For example, when conductive metal particles are dispersed into an insulated ceramic matrix, metal particles tend to touch each

show abstract

Section: Introductionmentioning

confidence: 99%

Role of CeAl₁₁O₁₈ in reinforcing Al₂O₃/Ti composites by adding CeO₂

Shi

Cho

Goto

et al. 2020

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

show abstract

“…The toughening mechanism can be attributed to the plastic deformation of metal phases, crack deflection, and crack bridging by the dispersed metal nanoparticles . In addition to showing improved mechanical properties compared to the corresponding monolithic ceramics, ceramic/metal nanocomposites also exhibit new electrical, optical, and magnetic properties along with metal‐like machinability and superplasticity …”

Section: Introductionmentioning

confidence: 99%

“…9 In addition to showing improved mechanical properties compared to the corresponding monolithic ceramics, ceramic/metal nanocomposites also exhibit new electrical, optical, and magnetic properties along with metal-like machinability and superplasticity. [6][7][8]10,11 Titanium (Ti) and its alloys are widely used as structural components and biocompatible metal materials because of their high fracture toughness, relatively low density, and good biochemical stability. 12,13 Al 2 O 3 ceramics are also used as artificial bone because of their high wear resistance and strength.…”

Section: Introductionmentioning

confidence: 99%

Fine Ti‐dispersed Al₂O₃ composites and their mechanical and electrical properties

et al. 2018

View full text Add to dashboard Cite

Al2O3/Ti composites containing 0‐30 vol% dispersed fine Ti particles were fabricated using a hot‐press sintering method at 1500°C from mixtures of Al2O3 and TiH2 powders. During sintering, TiH2 decomposed to form metallic Ti. The effects of the Ti content on the mechanical and electrical properties of the composites were then investigated. No Ti‐Al intermetallic compounds were detected by X‐ray diffraction, and energy‐dispersive X‐ray spectroscopy indicated the presence of Al‐Ti‐O solid solution and Ti‐O phases. The composites showed enhanced densification; the measured densities were higher than the calculated theoretical values. Microstructural observation revealed homogeneously distributed fine Ti particles dispersed in the Al2O3 matrix. The Ti particle size ranged from submicrometer to a few micrometers depending on the Ti content. The fracture mode of the composites was primarily transgranular, in contrast to the intergranular fracture mode of monolithic Al2O3. Although the flexural strength was decreased with increase in Ti content, the composite containing 20 vol% Ti displayed the maximum fracture toughness of 4.3 MPa·cm1/2, which was 37% greater than that of monolithic Al2O3. The composites containing more than 15 vol% Ti exhibited drastic decreases in resistivity (~10−1 Ωcm), which were attributed to the formation of interconnected Ti networks at these Ti contents. The percolation threshold volume for electrical conduction in the present system was calculated to be 13.8 vol%. The results indicate that dispersing fine Ti particles into Al2O3 increased the fracture toughness and improved the conductivity of Al2O3.

show abstract

“…A new idea is to obtain self-lubricating ceramic cutting tool materials with the addition of solid lubricants. Solid sliding agents should be characterised by a low friction coefficient and resistance to oxidation at temperatures exceeding 800 • C [225][226][227][228].…”

Section: New Solutions For Tool Materialsmentioning

confidence: 99%

The Critical Raw Materials in Cutting Tools for Machining Applications: A Review

et al. 2020

View full text Add to dashboard Cite

A variety of cutting tool materials are used for the contact mode mechanical machining of components under extreme conditions of stress, temperature and/or corrosion, including operations such as drilling, milling turning and so on. These demanding conditions impose a seriously high strain rate (an order of magnitude higher than forming), and this limits the useful life of cutting tools, especially single-point cutting tools. Tungsten carbide is the most popularly used cutting tool material, and unfortunately its main ingredients of W and Co are at high risk in terms of material supply and are listed among critical raw materials (CRMs) for EU, for which sustainable use should be addressed. This paper highlights the evolution and the trend of use of CRMs) in cutting tools for mechanical machining through a timely review. The focus of this review and its motivation was driven by the four following themes: (i) the discussion of newly emerging hybrid machining processes offering performance enhancements and longevity in terms of tool life (laser and cryogenic incorporation); (ii) the development and synthesis of new CRM substitutes to minimise the use of tungsten; (iii) the improvement of the recycling of worn tools; and (iv) the accelerated use of modelling and simulation to design long-lasting tools in the Industry-4.0 framework, circular economy and cyber secure manufacturing. It may be noted that the scope of this paper is not to represent a completely exhaustive document concerning cutting tools for mechanical processing, but to raise awareness and pave the way for innovative thinking on the use of critical materials in mechanical processing tools with the aim of developing smart, timely control strategies and mitigation measures to suppress the use of CRMs.

show abstract

Al2O3–V cutting tools for machining hardened stainless steel

Cited by 39 publications

References 14 publications

Role of CeAl₁₁O₁₈ in reinforcing Al₂O₃/Ti composites by adding CeO₂

Role of CeAl₁₁O₁₈ in reinforcing Al₂O₃/Ti composites by adding CeO₂

Fine Ti‐dispersed Al₂O₃ composites and their mechanical and electrical properties

The Critical Raw Materials in Cutting Tools for Machining Applications: A Review

Contact Info

Product

Resources

About

Al2O3–V cutting tools for machining hardened stainless steel

Cited by 39 publications

References 14 publications

Role of CeAl11O18 in reinforcing Al2O3/Ti composites by adding CeO2

Role of CeAl11O18 in reinforcing Al2O3/Ti composites by adding CeO2

Fine Ti‐dispersed Al2O3 composites and their mechanical and electrical properties

The Critical Raw Materials in Cutting Tools for Machining Applications: A Review

Contact Info

Product

Resources

About

Role of CeAl₁₁O₁₈ in reinforcing Al₂O₃/Ti composites by adding CeO₂

Role of CeAl₁₁O₁₈ in reinforcing Al₂O₃/Ti composites by adding CeO₂

Fine Ti‐dispersed Al₂O₃ composites and their mechanical and electrical properties