Three-dimensional visualization and quantitative characterization of primary silicon particles in an Al–Si base alloy

Singh, Harpreet; Gokhale, A.M.; Tewari, Ashish; Zhang, S.; Mao, Y.

doi:10.1016/j.scriptamat.2009.04.040

Cited by 33 publications

(14 citation statements)

References 11 publications

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“…Faceted octahedra formed in the AlFe3Mn2Si6 alloy (Fig. 3a) were similar to those of the Si, formed in the hypereutectic AlSi alloys [16,17]. It might be assumed that they were limited with close packed {111} planes, typical for the many others cubic crystals.…”

Section: Morphology Of the Primary Crystals Of The Alfemnsi Intermetamentioning

confidence: 61%

Primary Crystals of AlfeMnSi Intermetallics in the Cast AlSi Alloys

Warmuzek

2017

Archives of Metallurgy and Materials

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In this paper the results of the microscopic observations of the intermetallic AlFeMnSi phases crystals formed in the liquid hypo-and eutectic AlSi alloys containing transition metals 3.0 wt.% Fe and 0.1, 0.5 and 2.0 wt.% Mn were presented. The crystals morphology has been revealed on both polished and deep etched microsections. The different stages of the primary AlFeMnSi phases particles formation in the solidifying alloy and their final morphology were shown as influenced by cooling rate and alloy chemical composition.

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Section: Morphology Of the Primary Crystals Of The Alfemnsi Intermetamentioning

confidence: 61%

Primary Crystals of AlfeMnSi Intermetallics in the Cast AlSi Alloys

Warmuzek

2017

Archives of Metallurgy and Materials

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“…5b). It was noted in a previous work [16] that the primary silicon can have an octahedral shape with specific growth kinetics for various crystallographic planes. Eutectic silicon is seen with a plate like morphology.…”

Section: Resultsmentioning

confidence: 96%

Understanding texture domains and relations between pre-eutectic and eutectic phase during Al-Si alloy solidification

Tewari

Mishra

Tiwari

2009

Trans Indian Inst Met

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Phase morphology and crystallographic texture are important components of a solidification microstructure. Probability of nucleation of a nucleus is a strong function of local chemical & thermal conditions and its atomic orientation. Similarly, the growth kinetics for various crystal planes is dependent on its crystal orientation apart from local environmental conditions. The combined effects of nucleation & growth kinetics along with solidification conditions dictate the resulting microstructure of an alloy. In this study, various phases of a near eutectic Al-Si alloy are examined by serial sectioning and 3D reconstruction. A peculiar microstructure is observed in which primary silicon is present in the immediate proximity of primary aluminum. Observations through electron back scatter diffraction show that the microtexture of primary and eutectic Si is similar (with in a twin relation) and thus it is concluded that the formation of eutectic starts with eutectic Si forming on the primary Si.

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“…The novel growth morphology of Ni 3 Sn 2 phase observed is interesting and worth noticing. The complicated morphologies of IMCs are originated from both the inherent crystal structure and external environment [7][8][9][10]. The sub-structure of primary Ni 3 Sn 2 phase observed can be explained by the structure of liquid metals.…”

Section: Resultsmentioning

confidence: 98%

“…Therefore, understanding the variation in growth morphology of IMCs is of critical importance in controlling the morphology of IMCs, thus further improving the properties of alloys. In recent decades, three kinds of a [7] can provide strong support for quantitative analysis of material microstructure, but it is time-consuming. Other 3D reconstruction techniques like Nano-CT are not suitable for bulk materials.…”

Section: Introductionmentioning

confidence: 99%