Investigation of mechanical properties of SiC particle reinforced Aluminium A356 / LM25 alloy composite

Sunitha, K.; Gurusami, K.; Rajeswari, N.; Kathikraja, A.; Saravanan, L.

doi:10.1016/j.matpr.2022.05.436

Cited by 4 publications

(3 citation statements)

References 17 publications

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“…This is mainly due to the higher reinforcement content and alloying elements of our material, which lead to additional strengthening. The compression strength of a stir-cast A356 with a content of 6 wt.% SiC in the T6 heat-treated condition was 334.28 MPa, as investigated by Sunitha et al [43]. This value is comparable to σ 15% of the as-sintered condition of our investigated AMC (Figure 3b), but the value for the T6 condition is even higher by about 70%.…”

Section: Compressive Behavior At Rtsupporting

confidence: 80%

“…Again, the reinforcement content has a significant influence on the strength of the AMC. However, despite the higher volume fraction of age-hardenable aluminum and thus a greater potential amount of strengthening precipitates for the AMC of Sunitha et al [43], the strength is significant lower. This seems to be contrary considering the strength that can be achieved by the T6 heat treatment (see Figure 3a), even without a reinforcement phase.…”

Section: Compressive Behavior At Rtmentioning

confidence: 81%

“…This seems to be contrary considering the strength that can be achieved by the T6 heat treatment (see Figure 3a), even without a reinforcement phase. It should, however, be taken into account, that both materials also differ in terms of Mg content and the manufacturing process which caused a coarser microstructure for the cast AMC [43]. A different ceramic reinforcement was used by Shao et al [44].…”

Section: Compressive Behavior At Rtmentioning

confidence: 99%

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Combined Effect of Particle Reinforcement and T6 Heat Treatment on the Compressive Deformation Behavior of an A357 Aluminum Alloy at Room Temperature and at 350 °C

Hirsch,

Berndt,

Grund

et al. 2024

Crystals

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Solid state sintering of cast aluminum powders by resistance heating sintering (RHS), also known as spark plasma sintering or field-assisted sintering technique, creates a very fine microstructure in the bulk material. This leads to high performance material properties with an improved strength and ductility compared to conventional production routes of the same alloys. In this study, the mechanical behavior of an RHS-sintered age-hardenable A357 (AlSi7Mg0.6) cast alloy and a SiCp/A357 aluminum matrix composite (AMC) was investigated. Aiming for high strength and good wear behavior in tribological applications, the AMC was reinforced with a high particle content (35 vol.%) of a coarse particle fraction (d50 = 21 µm). Afterwards, separated and combined effects of particle reinforcement and heat treatment were studied under compressive load both at room temperature and at 350 °C. At room temperature compression, the strengthening effect of precipitation hardening was about twice as high as that for the particle reinforcement, despite the high particle content. At elevated temperatures, the compressive deformation behavior was characterized by simultaneously occurring temperature-activated recovery, recrystallisation and precipitation processes. The occurrence and interaction of these processes was significantly affected by the initial material condition. Moreover, a rearrangement of the SiC reinforcement particles was detected after hot deformation. This rearrangement lead to a homogenized dispersion of the reinforcement phase without considerable particle fragmentation, which offers the potential for secondary thermo-mechanical processing of highly reinforced AMCs.

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Section: Compressive Behavior At Rtsupporting

confidence: 80%

Section: Compressive Behavior At Rtmentioning

confidence: 81%