The role of microstructural characteristics in the cavitation erosion behaviour of laser melted and laser processed Nickel–Aluminium Bronze

Cottam, Ryan; Luzin, Vladimir; Moody, Henry; Edwards, D.P.; Majumdar, Amit; Wong, Yat Choy; Wang, James; Brandt, Milan

doi:10.1016/j.wear.2014.05.002

Cited by 37 publications

(15 citation statements)

References 25 publications

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“…Many studies have focused on factors influencing cavitation erosion resistance, such as material properties [2][3][4][5], flow velocity [2], cavitation intensity [3], nozzle geometry [4], fluid media [6], water temperature [7], and surface topography [8,9]. In addition, some studies have focused on the mechanisms of cavitation erosion caused damage [10][11][12] and on tracking the progress of damage over cavitation time [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

“…However, the manner in which the unique microstructure and mechanical properties caused by the SLM 3 process affect the cavitation erosion has not been investigated. Cottam et al [11] performed a cavitation erosion test comparing two types of laser surface treatments on nickel-aluminum bronze, laser surface melting, and laser processing. Results showed that the tensile residue stresses in the laser melted sample weakened the sample, though it was still stronger than the laser processed sample.…”

Section: Introductionmentioning

confidence: 99%

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A study on cavitation erosion behavior of AlSi10Mg fabricated by selective laser melting (SLM)

Zou

Zhu

Pan

et al. 2017

Wear

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Cavitation erosion causes serious problems for hydraulic machinery. Selective laser melting (SLM), is a type of additive manufacturing that can produce metal parts directly and it has begun to be used in various industrial settings. However, the erosion properties of the SLM processed parts have only rarely been reported. The paper addresses the cavitation erosion behavior of AlSi10Mg samples fabricated by SLM at different laser scanning speeds. A wrought sample was also tested to provide a basis for comparison. Sample hardness and microstructure were investigated. Results showed the cavitation erosion behaviors of SLM samples to differ greatly from that of the wrought sample. The erosion rate of SLM samples was found to peak in the first 30 s. This was accompanied by the removal of particles inside pores. After peaking, the erosion rate of the SLM samples decreased significantly. SLM samples showed an extremely low erosion rate entering the steady-state period. Large, deep craters which were common wear marks on the wrought sample, were not present on the SLM samples. Different scanning speeds resulted in different max erosion rates.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A study on cavitation erosion behavior of AlSi10Mg fabricated by selective laser melting (SLM)

Zou

Zhu

Pan

et al. 2017

Wear

View full text Add to dashboard Cite

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“…However, it was observed the formation of the Widmanstätten α phase, characterized by Bell [9] due to its low corrosion resistance in the presence of sea water, making the technique not feasible for applications in propellers or other parts that operate underwater. In the case of the Widmanstätten phase, Cottam et al [10] observed its presence by applying the technique of laser surface melting (LSM) welding in NAB. In addition, they also identified the presence of a lamellar precipitate (kIII), which is more susceptible to cavitation erosion and contributes to the low material cavitation performance.…”

Section: Introductionmentioning

confidence: 99%

Prospecting for the Surface Treatment of a Nickel-Aluminium Bronze Alloy Using the TIG Process

Tascheck

Cunha

2023

Soldag. insp.

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“…In order to predict the thermal effect of a particle in flight during the process of thermal projection by oxyacetylene flame, numerical simulations have been made using Jets & Poudres software [5]. This software is based on GENMIX computer code, which was developed by Spalding and Patankar [6] and was improved by the use of thermodynamic and transport properties related to the local temperatures and the composition of the thermal sources that it simulates.…”

Section: Introductionmentioning

confidence: 99%

Influence of Gas Pressure on the Mechanical and Tribological Properties of Cu-Al Coatings Deposited via Thermal Spray

2019

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We report the results of the influence of the acetylene and oxygen gas pressure on the wear resistance of aluminum–bronze coatings deposited on naval brass substrate by means of the thermal (flame) deposition process. The coatings were characterized by means of scanning electronic microscopy (SEM), energy-dispersive X-ray spectrometry (EDS), X-ray diffraction (XRD), and X-ray fluorescence (XRF). The adhesion was determined with cross-hatching tests, and the mechanical response was assessed by measuring the nanohardness and by three-body and ball-on-disk abrasive wear tests. The results indicate that changes in the pressure and flow of the gas affect the morphology and the mechanical properties of the coatings, and these effects have consequences for the wear behavior of the coatings. Before the projection of the coatings, numerical simulations were carried out using Jets & Poudres software, where the collision speed of the particles was identified as the most significant factor that influences the mechanical properties and the performance of the coating. The gas pressure modified the hardness and the porosity level, which allowed improving the wear resistance.

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The role of microstructural characteristics in the cavitation erosion behaviour of laser melted and laser processed Nickel–Aluminium Bronze

Cited by 37 publications

References 25 publications

A study on cavitation erosion behavior of AlSi10Mg fabricated by selective laser melting (SLM)

A study on cavitation erosion behavior of AlSi10Mg fabricated by selective laser melting (SLM)

Prospecting for the Surface Treatment of a Nickel-Aluminium Bronze Alloy Using the TIG Process

Influence of Gas Pressure on the Mechanical and Tribological Properties of Cu-Al Coatings Deposited via Thermal Spray

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