Development of a Cast Al-Mg2Si-Si In Situ Composite: Microstructure, Heat Treatment, and Mechanical Properties

Georgatis, Ε.; Lekatou, A.; Karantzalis, A. E.; Petropoulos, H.; Katsamakis, S.; Poulia, A.

doi:10.1007/s11665-012-0337-6

Cited by 53 publications

(22 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1 also reveals the presence of intergranular eutectic phases of Al-Fe and, more rarely, Al-Fe-Si intermetallic compounds. These phases are common impurities in commercial Al-alloys [33] and have been shown to play a major role on the corrosion response of these AMCs [22].…”

Section: Effect Of Different Wetting Agents On the Microstructure Of mentioning

confidence: 99%

Effect of Wetting Agent and Carbide Volume Fraction on the Wear Response of Aluminum Matrix Composites Reinforced by WC Nanoparticles and Aluminide Particles

Lekatou¹,

Gkikas²,

Karantzalis³

et al. 2017

Archives of Metallurgy and Materials

Self Cite

View full text Add to dashboard Cite

Aluminum matrix composites were prepared by adding submicron sized WC particles into a melt of Al 1050 under mechanical stirring, with the scope to determine: (a) the most appropriate salt flux amongst KBF 4 , K 2 TiF 6 , K 3 AlF 6 and Na 3 AlF 6 for optimum particle wetting and distribution and (b) the maximum carbide volume fraction (CVF) for optimum response to sliding wear. The nature of the wetting agent notably affected particle incorporation, with K 2 TiF 6 providing the greatest particle insertion. A uniform aluminide (in-situ) and WC (ex-situ) particle distribution was attained. Two different sliding wear mechanisms were identified for low CVFs (≤1.5%), and high CVFs (2.0%), depending on the extent of particle agglomeration.

show abstract

Section: Effect Of Different Wetting Agents On the Microstructure Of mentioning

confidence: 99%

Effect of Wetting Agent and Carbide Volume Fraction on the Wear Response of Aluminum Matrix Composites Reinforced by WC Nanoparticles and Aluminide Particles

Lekatou¹,

Gkikas²,

Karantzalis³

et al. 2017

Archives of Metallurgy and Materials

Self Cite

View full text Add to dashboard Cite

show abstract

“…The investigated alloys are additionally doped by 0.6 % Mn to neutralize the negative effect [13][14][15] of the Fe-containing phase. As it is shown by other studies, an addition of 0.6 % of mass fraction of Mn in the alloy with a nominal composition of Al-7Mg-3Si improves its mechanical properties.…”

Section: Mn-and Si-containing Phasesmentioning

confidence: 99%

“…Some authors 13 reported that in the alloy with a nominal composition of Al-7Mg-5Si (w/%), the Al-Mg 2 Si eutectic and Al-Si eutectic are formed. However, the Al-Si eutectic was not detected in the alloy with a nominal composition of Al-7Mg-5Si-Mn (Figure 2f).…”

Section: Mn-and Si-containing Phasesmentioning

confidence: 99%

“…Similar results of the Mg behavior in Al-alloys were obtained in another study. 21 An analysis of the literature data 3,13 showed that the mechanical properties of the Al-Mg 2 Si-Si alloys with an increased amount of Si are improved. However, in these works the mechanical properties are given after the heat treatment of the alloys.…”

Section: Influence Of the Chemical Composition On The Mechanical Propmentioning

confidence: 99%

See 1 more Smart Citation

Use of the ABI technique to measure the mechanical properties of aluminium alloys: effect of chemical composition on the mechanical properties of the alloys

Puchnin

Trudonoshyn²,

Prach³

2016

Mater. Tehnol.

View full text Add to dashboard Cite

The effects of the chemical composition on the microstructure and mechanical properties were investigated using automated ball-indentation tests, scanning electron microscopy and energy dispersive X-ray analysis. It was observed that the mechanical properties change with the presence of the eutectic and varying excess content of elements. In this work, the automated-ball-indentation (ABI) technique was compared with the standard mechanical tests. The ABI method is based on controlled multiple indentations into a polished surface by a spherical indenter under load. The indentation depth is progressively increased to the maximum, user-specified limit, with intermediate partial unloading. This technique allows to measure the yield strength, stress-strain curve, strength coefficient and strain-hardening exponent. For all these test materials and conditions, the ABI-derived results were in very good agreement with those obtained with the conventional, standard test methods. Keywords: Al-alloys, microstructure, mechanical properties, ABI tests Vpliv kemijske sestave na mikrostrukturo in mehanske lastnosti je bil preiskovan z avtomatskim preizkusom vtiskovanja krogle, z vrsti~no elektronsko mikroskopijo in z energijsko disperzijsko rentgensko analizo. Opa`eno je bilo, da se mehanske lastnosti spreminjajo s prisotnostjo evtektika in s spreminjanjem vsebnosti prese`nih elementov. V prispevku je bila preverjena metoda avtomatskega vtiskanja kroglice (ABI) z obi~ajnimi mehanskimi preizkusi. ABI metoda temelji na kontroliranih ve~kratnih vtiskih kroglastega vtiska~a v polirano povr{ino. Globina vtiskov progresivno nara{~a do maksimalne, z uporabnikom dolo~ene meje, s takoj{njo vmesno razbremenitvijo. Ta tehnika omogo~a merjenje meje plasti~nosti, krivulje napetost-raztezek, koeficienta trdnosti in eksponenta napetostnega utrjevanja. Za vse pogoje preizku{anja materiala so dobljeni ABI rezultati skladni z rezultati, dobljenimi iz obi~ajnih metod preizku{anja.

show abstract

“…Its preserving low density [1,2], excellent mechanical properties [3,4] and low production costs [1,5] have earmarked this composite for selection as a structural material in the production of most industrial products, especially automotive and aerospace components such as pistons, cylinder heads and brake discs [6,7]. An Al-based alloy reinforced with a particulate Mg 2 Si phase has been introduced as the most practical fabrication process for such in-situ particulate metal matrix composites (PMMCs).…”

Section: Introductionmentioning

confidence: 99%

The sequence of intermetallic formation and solidification pathway of an Al–13Mg–7Si–2Cu in-situ composite

Farahany

Nordin

Ourdjini

et al. 2014

Materials Characterization

View full text Add to dashboard Cite

Development of a Cast Al-Mg2Si-Si In Situ Composite: Microstructure, Heat Treatment, and Mechanical Properties

Cited by 53 publications

References 33 publications

Effect of Wetting Agent and Carbide Volume Fraction on the Wear Response of Aluminum Matrix Composites Reinforced by WC Nanoparticles and Aluminide Particles

Effect of Wetting Agent and Carbide Volume Fraction on the Wear Response of Aluminum Matrix Composites Reinforced by WC Nanoparticles and Aluminide Particles

Use of the ABI technique to measure the mechanical properties of aluminium alloys: effect of chemical composition on the mechanical properties of the alloys

The sequence of intermetallic formation and solidification pathway of an Al–13Mg–7Si–2Cu in-situ composite

Contact Info

Product

Resources

About