Fabrication and behaviour of Al–Si/SiC composite in cavitation conditions

Ćosić, Milomir; Dojčinović, Marina; Aćimovic-Pavlović, Zagorka

doi:10.1179/1743133613y.0000000078

Cited by 6 publications

(4 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Some authors compared the cavitation erosion resistance of A356 alloy and A356FA5 composite containing 5 wt % fly ash, whose fine particles seem to suppress pit growth [ 34 ]. Additionally, similar investigations were also performed on composites reinforced with particles or fibers of silicon carbide and alumina [ 35 , 36 ].…”

Section: Introductionmentioning

confidence: 99%

Influence of Ultrasound Treatment on Cavitation Erosion Resistance of AlSi7 Alloy

Pola¹,

Montesano²,

Tocci³

et al. 2017

Materials

View full text Add to dashboard Cite

Ultrasound treatment of liquid aluminum alloys is known to improve mechanical properties of castings. Aluminum foundry alloys are frequently used for production of parts that undergo severe cavitation erosion phenomena during service. In this paper, the effect of the ultrasound treatment on cavitation erosion resistance of AlSi7 alloy was assessed and compared to that of conventionally cast samples. Cavitation erosion tests were performed according to ASTM G32 standard on as-cast and heat treated castings. The response of the alloy in each condition was investigated by measuring the mass loss as a function of cavitation time and by analyzing the damaged surfaces by means of optical and scanning electron microscope. It was pointed out that the ultrasound treatment increases the cavitation erosion resistance of the alloy, as a consequence of the higher chemical and microstructural homogeneity, the finer grains and primary particles and the refined structure of the eutectic induced by the treatment itself.

show abstract

Section: Introductionmentioning

confidence: 99%

Influence of Ultrasound Treatment on Cavitation Erosion Resistance of AlSi7 Alloy

Pola¹,

Montesano²,

Tocci³

et al. 2017

Materials

View full text Add to dashboard Cite

show abstract

“…It should also be mentioned that casting manufacturing produces defects like porosities, non-metallic inclusions, and segregations [28] that could represent preferential site for erosion damage. In order to enhance microstructural and mechanical properties of casting alloys, the effect of Al-Si composites reinforced with particles or fibers of silicon carbide and alumina was also evaluated [29][30]. Furthermore, it is well known that a proper choice of heat treatment parameters can increase several mechanical properties [31][32][33].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of cavitation erosion resistance of Al-Si casting alloys: effect of eutectic and intermetallic phases

Tocci

Pola

Montesano

et al. 2017

Frattura Ed Integrità Strutturale

View full text Add to dashboard Cite

In the present paper, the influence of eutectic and intermetallic phases on cavitation resistance of Al-Si alloys was studied. In fact, Al-Si alloys are commonly used for the production of components, such as cylinders, pistons, pumps, valves and combustion chambers, which in service may incur in cavitation phenomenon. Samples of AlSi3, AlSi9 and AlSi9CuFe were characterized from the microstructural point of view. Hardness measurements were also performed. Subsequently, cavitation tests were carried out according to ASTM G32 standard and the erosion mechanism was examined by scanning electron microscope. It was found the both eutectic and intermetallic phases enhance cavitation resistance, expressed in terms of mass loss. Particularly, intermetallic particles with complex morphologies provide a positive contribution, exceeding that of other microstructural features, as grain size. The effect of T6 heat treatment was also evaluated. It was confirmed that the precipitation of fine strengthening particles in the Al matrix successfully hinders the movement of dislocations, resulting in a longer incubation stage and a lower mass loss for heat-treated samples in comparison with as-cast ones. Finally, the relationship between cavitation resistance and material hardness was investigated.Citation: Tocci, M., Pola, A., Montesano, L., La Vecchia, G. M., Evaluation of cavitation erosion resistance of Al-Si casting alloys: effect of eutectic and intermetallic phases, Frattura ed Integrità Strutturale, 43 (2018) 218-230.

show abstract

“…The characteristics for biocompatible material must be in full compliance with its destination. So, the use of biocompatible materials involves [17][18]:…”

Section: Introductionmentioning

confidence: 99%

Structural Analysis of CoCrMoSi6 Alloy Used in Medical Applications

Minciună

Vizureanu

Achiţei

et al. 2016

KEM

View full text Add to dashboard Cite

Increase the life exploitation of implants has been the motor factor in the elaboration of the new biocompatible alloys based on cobalt. The paper aims the complete structural characterizations for CoCrMoSi6 alloy, based on modern investigation methods, like compositional analysis by EDX method, optical and electronic microscopy analysis, X-ray diffractrometric analysis, fracture analysis. The experiments aimed to establish all the structural aspects for CoCrMoSi6 alloy and his recommendation for using to manufacture the components for medical applications. The results obtained from the SEM microstructural analysis, for the original version allied with silicon in percentage of 6%, certify a dendritic structure specific to the cobalt base alloys. This paper established the structural aspects for a new variant of CoCrMoSi6 alloy and recommends their use successfully in the production of components for medical applications.

show abstract

Fabrication and behaviour of Al–Si/SiC composite in cavitation conditions

Cited by 6 publications

References 31 publications

Influence of Ultrasound Treatment on Cavitation Erosion Resistance of AlSi7 Alloy

Influence of Ultrasound Treatment on Cavitation Erosion Resistance of AlSi7 Alloy

Evaluation of cavitation erosion resistance of Al-Si casting alloys: effect of eutectic and intermetallic phases

Structural Analysis of CoCrMoSi6 Alloy Used in Medical Applications

Contact Info

Product

Resources

About