Numerical and Experimental Investigation of Erosive Wear of Ti-6Al-4V Alloy

Mohammadi, Bijan; Khoddami, AmirSajjad; Pourhosseinshahi, Mohammadreza

doi:10.1115/1.4044298

Cited by 9 publications

(6 citation statements)

References 45 publications

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“…However, the SPH method more precisely predicts the erosion rate in the velocities of 40 m/s and 80 m/s. 4 is that it shows that the maximum value of erosion rate of Ti-6Al-4V for all considered particle velocities has been recorded at an impact angle of 45 ; and the FE and SPH results are in agreement with the experimental observations of previous studies, such as [35,58], and present experimental investigation. The reason for this observation is due to the ductile behavior of the target, in which the deviatoric and shear components of the stresses have an important role in the damage and plasticity of the target.…”

Section: Verification Of Fe and Sph Modelssupporting

confidence: 91%

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Experimental and numerical prediction of multiple solid particle erosion during a dry micro-blasting process of dental titanium alloy by angular particles based on representative volume element technique

Khoddami,

Jahroodi,

Salimi-Majd

et al. 2023

Preprint

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Micro-blasting is a general process for surface treatment of engineering components such as gears, dental implants, and screws. These components are put under solid particle impacts. To attain the acceptable final surface, it is important to present an accurate and fast prediction of erosion rate and other surface damage mechanisms of them under various conditions. To reduce the computational costs, this article aims to present a beneficial 3D model using representative volume element (RVE) technique for the simulation of multiple arbitrary angular solid particle erosion (SPE). This technique is used in finite element (FE) method in comparison with smoothed particle hydrodynamics (SPH) to investigate their capability in SPE modeling. Johnson-Cook constitutive equations are performed to describe the erosive behavior of the titanium alloy. To verify the developed approach, SPE experiments were conducted on Ti-6Al-4V under various values of impact angle and particle velocity. Then, the effects of the impact angle on erosion rates are investigated to identify the critical angle in which the erosion rate is maximum. Moreover, an approximate equation is presented for variations of erosion rate. The article focuses on the erosion effect on the surface of the alloy by investigating SPE mechanisms. The results show the RVE approach, as well as the approximate equation, can predict the wear damage in a good agreement with the empirical data. SPH showed more accurate results in higher velocities, while the FE model is more appropriate in the lower ones. According to the results, the impacting angle of 45̊ is critical.

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Section: Verification Of Fe and Sph Modelssupporting

confidence: 91%

“…Table 1 shows the properties of Ti-6Al-4V, which is used in this study. Finally, it is important to state that J-C constitutive equations are suitable choices for modeling strain ratedependent damage and plasticity behavior of ductile materials, especially Ti-6Al-4V, under certain conditions of impact loadings [1,[35][36]38,[58][59].…”

Section: Constitutive Modelmentioning

confidence: 99%

Experimental and numerical prediction of multiple solid particle erosion during a dry micro-blasting process of dental titanium alloy by angular particles based on representative volume element technique

Khoddami,

Jahroodi,

Salimi-Majd

et al. 2023

Preprint

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“…A similar approach was successfully performed to model SPE at low-temperature condition, especially for optimization of coatings. 54,55…”

Section: Modelingmentioning

confidence: 99%

“…A similar approach was successfully performed to model SPE at low-temperature condition, especially for optimization of coatings. 54,55 FE modeling was conducted using ABAQUS/ Explicit (version 6.14). The eight-node thermally coupled brick-trilinear displacement and temperature (C3D8T) elements were applied to the substrate.…”

Section: Multiple Particles Impact Modelingmentioning

confidence: 99%

Representative volume element-based simulation of multiple solid particles erosion of a compressor blade considering temperature effect

Mohammadi

Khoddami

2019

Proceedings of the Institution of Mechanical Engineers, Part J:

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Solid particle erosion is one of the main failure mechanisms of a compressor blade. Thus, characterization of this damage mode is very important in life assessment of the compressor. Since experimental study of solid particle erosion needs special methods and equipment, it is necessary to develop erosion computer models. This study presents a coupled temperature–displacement finite element model to investigate damage of a compressor blade due to multiple solid particles erosion. To decrease the computational cost, a representative volume element technique is introduced to simulate simultaneous impact of multiple particles. Blade has been made of Ti-6Al-4V, a ductile titanium-based alloy, which is impacted by alumina particles. Erosion finite element modeling is assumed as a micro-scale impact problem and Johnson–Cook constitutive equations are used to describe Ti-6Al-4V erosive behavior. In regard to a wide variation range in thermal conditions all over the compressor, it is divided into three parts (first stages, middle stages, and last stages) in which each part has an average temperature. Effective parameters on erosive behavior of the blade alloy, such as impact angle, particles velocity, and particles size are studied in these three temperatures. Results show that middle stages are the most critical sites of the compressor in terms of erosion damage. An exponential relation is observed between erosion rate and particles velocity. The dependency of erosion rate on size of particles at high temperatures is indispensable.

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“…A study of erosion phenomena part I [24] A study of erosion phenomena: Part II [25] Neilson JH, Gilchrist A. Erosion by a stream of solid particles [26] An improved model of erosion by solid particle impact [27] Surface engineering for corrosion and wear resistance [28] Effect of operational variables, microstructure and mechanical properties … [29] Numerical and experimental investigation of erosive wear of Ti-6Al-4V alloy [30] The sand erosion performance of coatings…”

mentioning

confidence: 99%

Study on effect of particle velocity and impact angle on erosion of Ti-6Al-4V alloy using smoothed particle hydrodynamics method

Khoddami

Nasiri²,

Mohammadi³

2022

Modares Mechanical Engineering

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In the present study, solid particle erosion of Ti-6Al-4V alloy under the impact of spherical alumina particles with a diameter of 85 microns was analyzed using experimental studies and smoothed particle hydrodynamics (SPH) modeling. The erosive behavior of this alloy was simulated as impacts on micro-scale and based on Johnson-Cook constitutive equations. This research focuses on the effect of particle velocity and impact angle on erosion rate as the most critical factors. Additionally, the results of this model are validated by empirical results under-considered conditions. At the end of the article, based on the alloy properties, the velocity of particles, and impact angle, a prediction equation was presented on erosion rate in the studied range of velocity and impact angle. This study indicates a power-law equation between the velocity of particles and the erosion rate, where the power is independent of impact angle. Furthermore, in all the velocity and angle ranges, the maximum erosion rate was associated with the angle of 45o. Therefore, the critical angle in erosion is also independent of the velocity of particles.

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Numerical and Experimental Investigation of Erosive Wear of Ti-6Al-4V Alloy

Cited by 9 publications

References 45 publications

Experimental and numerical prediction of multiple solid particle erosion during a dry micro-blasting process of dental titanium alloy by angular particles based on representative volume element technique

Experimental and numerical prediction of multiple solid particle erosion during a dry micro-blasting process of dental titanium alloy by angular particles based on representative volume element technique

Representative volume element-based simulation of multiple solid particles erosion of a compressor blade considering temperature effect

Study on effect of particle velocity and impact angle on erosion of Ti-6Al-4V alloy using smoothed particle hydrodynamics method

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