The Effect of Rare Earth Mischmetal on the High Temperature Tensile Properties of an A356 Aluminum Alloy

Stroh, Joshua; Sediako, D.; Weiss, David

doi:10.1007/978-3-030-65396-5_27

Cited by 4 publications

(1 citation statement)

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“…The application of T6 temper did not have any relevant impact on the morphology of intermetallics, contributing only to the eutectic globularization. Upon the addition of rare earth, a higher amount of the π phase was also observed, which is more stable at higher temperatures than Mg 2 Si, another characteristic that might have led to the high-temperature strengthening of the alloy [128]. Zhu et al also studied the effects of mischmetal addition in an A356 alloy and observed that the optimum concentration of RE to maximize strength and elongation was 0.7% [129].…”

Section: Rare Earth (Re) Elementsmentioning

confidence: 99%

The Influence of Alloying Elements on the Microstructure and Properties of Al-Si-Based Casting Alloys: A Review

Callegari

Lima

Coelho

2023

Metals

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The excellent casting behavior and mechanical and corrosion properties of aluminum-silicon (Al-Si)-based alloys make them ideal for the manufacture of lightweight components with complex geometries. However, these properties depend directly on their microstructure, which, in its turn, is strongly affected by the composition of the alloy, among other factors. Several elements can be added to the material aiming to promote microstructural changes, e.g., grain refinement, optimization of phase morphology and distribution, and precipitation strengthening. Efforts are continuously put into such enhancements of cast Al alloys since they lead to quality improvements that allow for weight reduction and safety increase. Considering the technological relevance of the subject, this paper provides an overview of the research focused on the addition of alloying elements to these alloys, with a greater focus on Al-Si-based systems and the comprehension of the effects of these additions on their microstructure and properties.

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Section: Rare Earth (Re) Elementsmentioning

confidence: 99%