A numerical study on the effect of particle shape on the erosion of ductile materials

Liu, Zhigang; Wan, Stephen; Nguyen, Van Bo; Zhang, Yong‐Wei

doi:10.1016/j.wear.2014.03.005

Cited by 82 publications

(35 citation statements)

References 21 publications

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“…Several studies have focused so far on developing FE models for simulating the erosion caused by solid particle impact of ductile metals such as AISI 4140 steel and nickel (Ni), Al6061-T6, Ti-6Al-4V and britle ceramics such as tungsten carbide (WC), Cr3C2, and SiC [50][51][52][53]. The models developed enabled an in-depth study of the stresses and strains produced during the erosion process and also assess the efect of testing factors such as particle size, shape, velocity, and impact angle on the erosion rate.…”

Section: Finite Element Modelling Of the Wear Processmentioning

confidence: 99%

Erosive and Abrasive Wear Resistance of Polyurethane Liners

Ashrafizadeh¹,

McDonald²,

Mertiny³

2017

Aspects of Polyurethanes

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Material removal caused by the impact and sliding of a stream of particles is a typical wear mode in the oil and gas industry. Protective coatings can be employed to increase the service life of equipment that is exposed to harsh erosive and abrasive environments. Among all the types of protective coatings and liners, polyurethane elastomers have received great atention owing to their excellent wear resistance and comparatively low cost that would allow for large-scale applications. The excellent wear resistance of polyurethane elastomers is a result of their high resilience and propensity to elastic deformation that enables the absorption of impact energy of erodant particles with minimal damage. The relation between the wear resistance of polyurethane and its mechanical properties has been the subject of previous studies. This chapter reviews the research that has been conducted to study the wear resistance of polyurethane elastomers. Testing apparatuses employed, material characterization techniques, evaluations of material removal mechanisms, and parameters with the strongest efect on wear resistance of polyurethane elastomers are herein explored. A review of inite element modelling approaches for in-depth study of the wear phenomenon of polyurethane elastomers is also presented in this chapter.

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Section: Finite Element Modelling Of the Wear Processmentioning

confidence: 99%

Erosive and Abrasive Wear Resistance of Polyurethane Liners

Ashrafizadeh¹,

McDonald²,

Mertiny³

2017

Aspects of Polyurethanes

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show abstract

“…This numerical model, previously verified experimentally, showed that the erosion mainly occurs on the outer and lower surface and downstream pipe of U-bend. Nemitallah et al [15] pointed out the influence of flow rate, particle size, and pipe material on the erosion downstream of the sharp edge hole; although, research has suggested the particle shape also affects the erosion rate [16][17][18][19]. Desale et al [20] showed that the erosion of ductile materials is both a function of the size and hardness of the erosion agent and of its shape and density.…”

Section: Introductionmentioning

confidence: 99%

Multicomponent Water Effects on Rotating Machines Disk Erosion

Yang

Hou

et al. 2020

Water

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When sand particles are entrained into carrier flow, such as liquid, a strong interaction occurs with the surface of the metallic material, resulting in serious erosion damage. However, the effect of the physical properties of particles and materials on erosion characteristics has not been well studied. In this paper, the erosion-wear behavior of a rotating disc surface under the action of solid–liquid two-phase flow was studied by using the discrete particle model (DPM). The wear effects on the surface of sample due to particle diameter (d = 0.1 mm, d = 0.2 mm, d = 0.3 mm, d = 0.4 mm), particle volume fraction (CV = 2%, CV = 3%, CV = 4%, CV = 5%), and particle inlet velocity (v = 1.05 m/s, v = 2.05 m/s, v = 3.05 m/s, v = 4.05 m/s) were analyzed using representative values of operating conditions of rotating machines. The results show that the wear amount increases exponentially with the radius, whilst the maximum wear amount increases faster than the average wear amount with the particle volume fraction. The surface wear grows inversely with the particle diameter but slightly with the particle inlet velocity. A case study of stainless steel samples at different radius positions on the surface of rotating disc is carried out using a mixed velocity of sand and water of 2.05 m/s, an average particle size of 0.1 mm, and a concentration of CV = 2.5%. The experiments show the wear amount increases with the radius on the surface of the rotating disc, just as predicted by the numerical simulation. Two important findings emerge from the study: (1) the wear morphology of the specimen surface develops from two to three regions; (2) when the basal body is rotating at high speed, the wear degree is influenced more by the circumferential than particle inlet velocity. The wear morphology was observed by using a scanning electron microscope (SEM). It exhibited a mixture of fine and coarse scratches and pits, and the distribution of these varied according to the radial distance of the disc.

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“…The fundamental way to solve the erosion wear problem is to establish the relationship between particle parameters and wear. The relationship between particle parameters and erosion wear has been widely investigated in recent years (Nguyen et al 2016;Parsi et al 2017;Liu et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Erosion Wear on Impeller of Double-Suction Centrifugal Pump due to Sediment Flow

Shen¹,

Li²,

Wan-jin³

et al. 2020

JAFM

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Erosion wear of the centrifugal pump impeller are the key issues since its operating in sediment-laden flow. Experiment and numerical method are adopted in this study to investigate the erosion wear of the impeller in a double-suction pump in the Jingtai Yellow River Irrigation Project (JYRIP). Observation during operation combined with morphology study is carried out to verify erosion mechanisms at the different sections of the impeller blade. For numerical study, the Eulerian-Lagrangian approach combined with the Mclaury model is employed to predict the trajectories of the particles under different particle parameters. Also the effects of particle size and concentration on impeller erosion wear is studied. Numerical results are consistent with experimental data. The surface wear of the blade changes obviously from circular shape to strip shape in the direction from the Leading Edge (LE) to the Trailing Edge (TE), and the wear damage area increases correspondingly. Trajectories of larger particles are more uniform and tend to cause more severe erosion wear damage. The wear damage tends to be slow after the particle size increases to a certain extent under the same sediment concentration. Besides, erosion rate increases with an increase in sediment concentration, and the erosion rate of the suction side is greater than the pressure side at the same position of the blade surface. These results can offer a good reference for the design of wear resistance impeller of the double suction pump.

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A numerical study on the effect of particle shape on the erosion of ductile materials

Cited by 82 publications

References 21 publications

Erosive and Abrasive Wear Resistance of Polyurethane Liners

Erosive and Abrasive Wear Resistance of Polyurethane Liners

Multicomponent Water Effects on Rotating Machines Disk Erosion

Erosion Wear on Impeller of Double-Suction Centrifugal Pump due to Sediment Flow

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