A closer look at the ductile–brittle transition in solid particle erosion

Wensink, H.; Elwenspoek, Michael Curt

doi:10.1016/s0043-1648(02)00223-5

Cited by 109 publications

(79 citation statements)

References 25 publications

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“…For example, the mass loss is found to attain a peak at 4.5 ms -1 (0.21 g) at 60°. The change of environment has a significant impact; factors such as erodent particle, impact angle and the impact velocity increase the mass loss, attaining a peak at intermediate impact angles [14,15]. The reduction of the mass change at higher velocities, i.e.…”

Section: Effect Of Impingement Anglementioning

confidence: 99%

Impact Angle Effects on Erosion Maps of GFRP: Applications to Tidal Turbines

2016

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Tribology in marine renewable technologies has become of increasing interest due to the implications for developing improved materials for tidal and wave energy conversion devices. This on-going research mainly focuses on tidal devices; the materials of interest are primarily polymer-based composite materials that are used to provide structural integrity while reducing weight. These are specifically applied to turbine blades to withstand the high impact loadings in seawater conditions. At present, current materials in test trials have demonstrated some limitations in service. In this paper, some advanced experimental research has been carried out to investigate the tribological mechanisms of potential candidate composite materials to be used in tidal turbines by firstly considering the effects of various erosion parameters on the degradation modes, with and without particles in still and seawater conditions. The erosion mechanisms of composite materials used in tidal turbine blades have been evaluated using Scanning Electron Microscopy techniques to analyse the surface morphologies following testing in water representative of the constituents of coastal seawater. Generic erosion maps and the mechanistic maps have been constructed as a key to identify regions of minimum erosion for the operating conditions and to identify the significant effect of the seawater environment on the degradation of the composite. This research outcome will further help us to deeply understand and identify the erosion rates at different impact velocities and angles.

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Section: Effect Of Impingement Anglementioning

confidence: 99%

Impact Angle Effects on Erosion Maps of GFRP: Applications to Tidal Turbines

2016

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“…Some studies focused on the combination of top-down surface patterning with self-assembly of particles via electrostatic Chapter 2 22 interactions. For example, patterning by photolithography, [33] soft lithography, [34] nanoimprint lithography, [35] and scanning probe lithography [36] have been widely used for the fabrication of electrostatically assembled nanoparticles on patterned surfaces.…”

Section: Assembly Of Nanoparticles On Samsmentioning

confidence: 99%

Orthogonal Supramolecular Interaction Motifs for Functional Monolayer Architectures

Yilmaz

2012

Springer Theses

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“…For higher impact angle (60 and 90 ), the resolved normal stress is higher, that provides bigger indented force to forming extrusion lips and cracks but the eroded pieces remove difficult than that impinge at medium and lower angles due to the lower shear stress, and as a consequence, the erosion rates reduce. The maximum erosion rate occurs at the angle of 45 , which shows that the two-phase material mixed with martensite and ferrite causes the angle of maximum erosion rate being neither close to [20][21][22][23][24][25][26][27][28][29][30] observed in ductile materials [1][2][3][4] nor at normal angle reported in brittle materials. 5,6) When the effect of reduction is considered, the erosion rates decrease with increasing reduction and are lower than those of direct quenched and tempered samples for all impact angles.…”

Section: Erosion Datamentioning

confidence: 99%

“…Two models have been employed to describe the erosion behavior for ductile materials and brittle materials respectively. Ductile erosion occurs by ploughing, micromachining and cutting, [1][2][3][4] and maximum erosion rates occur for impact at $20{30…”

Section: Introductionmentioning

confidence: 99%

Effects of Hot Rolling and Subsequent Tempering on Particle Erosion Behavior of SUS403 Martensitic Stainless Steel

Wen

2006

Mater. Trans.

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The effects of hot rolling and subsequent tempering on particle erosion behavior of SUS403 MSS were investigated as a function of impact angle, reduction and grain size. The results indicated that, cutting is the dominant wear mode for material removal at oblique impact angle. At the higher impact angle, the mode is based on extrusion and cracking. However, at the medium impact angle, the wear is dominated by mode mixed with cutting and extrusion. The characteristics of the cracking are more obvious with increasing impact angle. The erosion rates of all reduction samples increase first and then decrease with increasing impact angle. The maximum erosion rate occurs at the angle of 45. After hot rolling, grain refining has an effect on decreasing erosion rates in comparison to the direct quenched and tempered samples. Fine grain associated with high density of grain boundary and with strengthening effect in mechanical properties retards the cracking and then decreases the erosion rate. The effect of grain refining on decreasing erosion rate is more obvious with increasing both the impact angle and the reduction. At the normal impact angle, the percentage of decrement of erosion rate is approximately 45% when the material was rolled with 50% reduction. Increasing in the mechanical properties including hardness, ductility, tensile strength and toughness are contributed to decreasing the erosion rate.

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A closer look at the ductile–brittle transition in solid particle erosion

Cited by 109 publications

References 25 publications

Impact Angle Effects on Erosion Maps of GFRP: Applications to Tidal Turbines

Impact Angle Effects on Erosion Maps of GFRP: Applications to Tidal Turbines

Orthogonal Supramolecular Interaction Motifs for Functional Monolayer Architectures

Effects of Hot Rolling and Subsequent Tempering on Particle Erosion Behavior of SUS403 Martensitic Stainless Steel

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