Cerium-Based, Intermetallic-Strengthened Aluminum Casting Alloy: High-Volume Co-product Development

Sims, Zachary C.; Weiss, David; McCall, S.; McGuire, Michael A.; Ott, Ryan T.; Geer, Tom; Rios, Orlando; Turchi, P A

doi:10.1007/s11837-016-1943-9

Cited by 127 publications

(42 citation statements)

References 11 publications

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“…The consequences of technological change on the demand and supply of critical materials is illustrated by the introduction of a recently developed aluminum-cerium-magnesium (AlCeMg) alloy [30,31] in two scenarios. In the Fe substitution scenario set, a rate r (1-100%) of the AlCeMg alloy is substituted for cast iron in internal combustion engines of cars sold from 2025 onwards.…”

Section: Scenarios Of Technological Changementioning

confidence: 99%

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Implications of Emerging Vehicle Technologies on Rare Earth Supply and Demand in the United States

et al. 2018

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Abstract:We explore the long-term demand and supply potentials of rare earth elements in alternative energy vehicles (AEVs) in the United States until 2050. Using a stock-flow model, we compare a baseline scenario with scenarios that incorporate an exemplary technological innovation: a novel aluminum-cerium-magnesium alloy. We find that the introduction of the novel alloy demonstrates that even low penetration rates can exceed domestic cerium production capacity, illustrating possible consequences of technological innovations to material supply and demand. End-of-life vehicles can, however, overtake domestic mining as a source of materials, calling for proper technologies and policies to utilize this emerging source. The long-term importing of critical materials in manufactured and semi-manufactured products shifts the location of material stocks and hence future secondary supply of high-value materials, culminating in a double benefit to the importing country. This modeling approach is adaptable to the study of varied scenarios and materials, linking technologies with supply and demand dynamics in order to understand their potential economic and environmental consequences.

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Section: Scenarios Of Technological Changementioning

confidence: 99%

“…A newly developed aluminum-cerium-magnesium alloy [30,31] serves as a case study to model such scenarios. This alloy, brought to market in November 2016, has several characteristics that make it a compelling case study.…”

Section: Introductionmentioning

confidence: 99%

Implications of Emerging Vehicle Technologies on Rare Earth Supply and Demand in the United States

et al. 2018

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“…Furthermore, it also saves the disposal cost. The recovered cerium can be converted to cerium metal and can be used in high value aluminum and magnesium alloys and steels [32][33][34]. This generates highly added value from the waste and closes metal loops.…”

Section: Glass Polishing Powder Wastementioning

confidence: 99%

“…Janoš et al [54] transformed polishing powder waste into phosphor elimination adsorption material, which could effectively eliminate the phosphate in sewage. The recovered cerium can also be used for preparing valuable Al-Ce alloys [32]. Cerium as an alloying element in aluminum increases the strength at room temperature as well as at high temperature.…”

Section: Applications Of Recovered Ceriummentioning

confidence: 99%

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Recovery of Cerium from Glass Polishing Waste: A Critical Review

Gerven

Vlugt

Yang

et al. 2018

Metals

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Ceria is the main component in glass polishing powders due to its special physico-chemical properties. Glass polishing powder loses its polishing ability gradually during usage due to the accumulation of other compounds on the polishing powder or due to changes in the particle size distribution. The recovery of cerium from the glass polishing waste results in the efficient utilization of natural resources. This paper reviews processes for the recovery of rare earths from polishing waste. Glass polishing powder waste can be reused via physical, physico-chemical or chemical processes by removing silica and/or alumina. The removal of silica and/or alumina only improves the life span up to some extent. Therefore, removal of other elements by chemical processes is required to recover a cerium or cerium-rich product. However, cerium leaching from the polishing waste is challenging due to the difficulties associated with the dissolution of ceria. Therefore, high acid concentrations, high temperatures or costly reducing agents are required for cerium dissolution. After leaching, cerium can be extracted from the leach solution by solvent extraction or selective precipitation. The product can be used either in glass polishing again or other high value added applications.

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Microstructure, Hardening, and Mechanical Properties of Hypoeutectic Al–Ce–Ni Alloys with Zr and Zr + Sc Additions and the Effect of Ultrasonic Melt Processing

Chankitmunkong,

Wang,

Limmaneevichitr

et al. 2023

Adv Eng Mater

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Ternary Al‐Ce‐Ni alloys have a potential in the manufacture of automotive and airspace components, as well as in replacing traditional aluminum alloys in high‐temperature applications, which is determined by the formation of fine and thermally stable Al11Ce3 and Al3Ni eutectic. In this study we successfully improved the microstructure and mechanical properties of a hypoeutectic Al4Ce2Ni alloy by using Zr and Zr+Sc additions combined with ultrasonic melt processing and dispersion hardening. As a result, the grain structure of the as‐cast alloys was significantly refined and the annealing at 350 °C led to a considerable hardening effect, especially in the alloys with Zr+Sc additions (doubling the hardness). Al3Zr and Al3(Zr,Sc) coherent particles were identified as hardening nano‐precipitates. The compressive mechanical testing at room and elevated temperatures showed that the additions of Zr and Zr+Sc improved the strength with the additional increase caused by ultrasonic melt processing.This article is protected by copyright. All rights reserved.

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Cerium-Based, Intermetallic-Strengthened Aluminum Casting Alloy: High-Volume Co-product Development

Cited by 127 publications

References 11 publications

Implications of Emerging Vehicle Technologies on Rare Earth Supply and Demand in the United States

Implications of Emerging Vehicle Technologies on Rare Earth Supply and Demand in the United States

Recovery of Cerium from Glass Polishing Waste: A Critical Review

Microstructure, Hardening, and Mechanical Properties of Hypoeutectic Al–Ce–Ni Alloys with Zr and Zr + Sc Additions and the Effect of Ultrasonic Melt Processing

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