Flexural Strength Reduction in Cemented Carbides

Petrovic, Marin; Voloder, Avdo

doi:10.12693/aphyspola.128.b-23

Cited by 3 publications

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References 3 publications

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“…Recent research on chromium carbide stressed their resistance to oxidation and corrosion and suggested that they have great potential to replace hard chrome electroplating as protective coatings [3,4]. The chromium carbide layers can be obtained by physical vapor deposition (PVD) [5,6] or thermo-reactive deposition/diffusion (TRD) technology [7,8]. In the case of PVD thickness is much less than 10 µm making those unfit also withstood the high contact pressure and further adhesion to the substrate is less than that obtained with other types of coating techniques.…”

Section: Introductionmentioning

confidence: 99%

Study of the Influence of Cementation Layer Thickness on Properties of Chromium Carbide Obtained by Conversion Treatment

Boubaaya

Allaoui

Djendel

et al. 2020

International Journal of Computational and Experimental Science and Engineering

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Steel substrates low carbons were face-hardened by cementing in case, and then thin layers of chromium were deposited by electrolytic way on these substrates. After deposition, the samples were exposed to isothermal annealing in the temperature of 950°C. The characterization of the thin layers was made by means of optical microscopy and interferometry Vickers micro-hardness. From the obtained results, we have established the kinetics of phase shift (under effect the layer of cementing) in the thin layers of chromium which are transformed into chromium carbide while passing by metastable phases of transition. These transformations occurred by diffusion of the carbon atoms coming from layer of cementing, germination and growth in solid phase. This fact has examined according to the temperature of annealing, the evolution of the lattice parameter and the morphology of the deposited chromium layer. As regards the mechanical properties, it was established that the micro-hardness believes with the evolution of the phase shift.

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Section: Introductionmentioning

confidence: 99%

Study of the Influence of Cementation Layer Thickness on Properties of Chromium Carbide Obtained by Conversion Treatment

Boubaaya

Allaoui

Djendel

et al. 2020

International Journal of Computational and Experimental Science and Engineering

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Calculation and 3D analyses of ERR in the band crack front contained in a rectangular plate made of multilayered material

Ocak

Akbarov

2018

Open Chemistry

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An investigation into the values of the Energy Release Rate (ERR) at the band crack’s front in the rectangular plate made of multilayered composite material is carried out for the opening mode. The corresponding boundary-value problem is modelled by using threedimensional linear theory and solved numerically by using 3D FEM (Three Dimensional Finite Element Method). The main purpose of the current investigation is to study the influence of mechanical and geometrical parameters on the Energy Release Rate (ERR) at this crack front. The numerical results related to the ERR, and the effect of the mechanical and other problem parameters on the ERR are presented and discussed.

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Tool wear assessment of turning operation by 2D finite-element simulation

ÇalişkanBarış

Parlar

2019

Emerging Materials Research

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Tool wear is a critical problem in industrial manufacturing. When tool wear reaches a certain value, it causes a change in tool geometry. This directly affects chip formation, cutting force, temperature distribution, machining quality and so on. Therefore, prediction of tool wear is of great importance for optimizing the cutting process. Numerical analysis is a powerful method to predicting cutting variables that are difficult to obtain by experimental method. In this paper, the effect of different tool rake angle values on tool wear rate is investigated. A two-dimensional (2D) finite-element simulation is presented for chip formation analysis considering thermal effects. Boundary conditions are defined as stationary for the workpiece and axial velocity to the tool at the cutting direction. Different models are analyzed by changing the tool geometry, and the results of the tool wear are discussed. It is shown that wear rate decreases ten times with the negative rake angle. However, increase in clearance angle causes increase in wear rate.

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Flexural Strength Reduction in Cemented Carbides

Cited by 3 publications

References 3 publications

Study of the Influence of Cementation Layer Thickness on Properties of Chromium Carbide Obtained by Conversion Treatment

Study of the Influence of Cementation Layer Thickness on Properties of Chromium Carbide Obtained by Conversion Treatment

Calculation and 3D analyses of ERR in the band crack front contained in a rectangular plate made of multilayered material

Tool wear assessment of turning operation by 2D finite-element simulation

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