Mechanical properties and fracture behavior of thixoformed, rheocast and gravity-cast A356 alloy

Tahamtan, S.; Boostani, A. Fadavi; Nazemi, H.

doi:10.1016/j.jallcom.2007.12.079

Cited by 47 publications

(21 citation statements)

References 23 publications

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“…Regarding fracture strain, only thixoforming and T6 guarantees better values than LPBF. [18] 279.6 ± 0.1 426.4 ± 2.6 10.1 ± 0.5 A357 LPBF 200 °C [18] 205.3 ± 1.3 307.7 ± 1.6 10.9 ± 0.7 A357Cast and T6 [16] 281 305 4.1 A356 Rheocast and T6 [30] 150 212 4.7 A356 Thixoform and T6 [30] 290 378 24.5…”

Section: Resultsmentioning

confidence: 99%

Effect of Process and Post-Process Conditions on the Mechanical Properties of an A357 Alloy Produced via Laser Powder Bed Fusion

Aversa

Lorusso

Trevisan

et al. 2017

Metals

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A357 samples were realized by laser powder bed fusion (LPBF) on building platforms heated up to different temperatures. The effect of the preheating temperature and of the post processing heat treatment on the microstructure and the mechanical properties of the samples was studied. It was demonstrated that building platform heating can act as an in situ ageing heat treatment following the fast cooling that arises during laser scanning. A 17% higher ultimate tensile strength was achieved by the selection of the optimum building platform temperature. Moreover, the possibility to further increase the mechanical properties by means of a direct ageing heat treatment was investigated.

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Section: Resultsmentioning

confidence: 99%

Effect of Process and Post-Process Conditions on the Mechanical Properties of an A357 Alloy Produced via Laser Powder Bed Fusion

Aversa

Lorusso

Trevisan

et al. 2017

Metals

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“…Table 3 represents the average tensile properties of thixoformed, gravity cast and rheo cast A356 samples. Results of tensile properties in the case of rheo cast samples have been published previously [5]. Table 3 demonstrates that compared with gravity cast process, thixoforming process is very beneficial in improving tensile properties, especially tensile elongation.…”

Section: Full Name Brief Namementioning

confidence: 89%

“…4 shows representative optical micrographs of (a) gravity cast, (b) Thix590-30, (c) Thix590-50, (d) higher magnification of zone shown in (c), (e) Thix600-30, (f) higher magnification of (e), and (g) Thix600-50 samples. Table 4 represents the morphological properties of silicon particles in samples under investigation (the morphological properties of rheo cast samples have been studied previously [5,6]). Table 4 shows that the aspect ratio of silicon particles in gravity cast and SIMA600 samples is higher than the other samples.…”

Section: Full Name Brief Namementioning

confidence: 99%

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Fracture behavior of thixoformed A356 alloy produced by SIMA process

Boostani

Tahamtan

2009

Journal of Alloys and Compounds

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“…If the particle/matrix interfacial bonding strength is high, particle fracture usually happens during deformation. On the other hand, if the particle/matrix interfacial bonding strength is weak, decohesion between the SiC particles and the aluminum matrix will occur prior to the particle fracture [43][44][45][46][47][48][49]. Fig.…”

Section: -3-mechanical Properties and Fractography Analysismentioning

confidence: 99%

Stir casting process for manufacture of Al–SiC composites

et al. 2015

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Stir casting is an economical process for the fabrication of aluminum matrix composites. There are many parameters in this process, which affect the final microstructure and mechanical properties of the composites. In this study, micron-sized SiC particles were used as reinforcement to fabricate Al-3 wt% SiC composites at two casting temperatures (680 and 850 °C) and stirring periods (2 and 6 min). Factors of reaction at matrix/ ceramic interface, porosity, ceramic incorporation, and agglomeration of the particles were evaluated by scanning electron microscope (SEM) and high-resolution transition electron microscope (HRTEM) studies. From microstructural characterizations, it is concluded that the shorter stirring period is required for ceramic incorporation to achieve metal/ceramic bonding at the interface. The higher stirring temperature (850 °C) also leads to improved ceramic incorporation. In some cases, shrinkage porosity and intensive formation of Al4C3 at the metal/ceramic interface are also observed. Finally, the mechanical properties of the composites were evaluated, and their relation with the corresponding microstructure and processing parameters of the composites was discussed. AbstractStir casting is an economical process for fabricating aluminium matrix composites. There are

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Mechanical properties and fracture behavior of thixoformed, rheocast and gravity-cast A356 alloy

Cited by 47 publications

References 23 publications

Effect of Process and Post-Process Conditions on the Mechanical Properties of an A357 Alloy Produced via Laser Powder Bed Fusion

Effect of Process and Post-Process Conditions on the Mechanical Properties of an A357 Alloy Produced via Laser Powder Bed Fusion

Fracture behavior of thixoformed A356 alloy produced by SIMA process

Stir casting process for manufacture of Al–SiC composites

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