Heat Treatments for Precipitation of Scandium-Containing Dispersoids in an Si-Containing Aluminum Alloys

Langan, Timothy; Ramjayam, Mahendra; Sanders, Paul G.; Wood, Thomas D.; Dorin, Thomas

doi:10.1007/978-3-030-05864-7_183

Cited by 1 publication

(1 citation statement)

References 7 publications

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“…It is argued that the higher cost of scandium-containing alloys should translate to the less expensive component through a combination of improved functional properties and reduction of the overall manufacturing cost. The above applies to scandium-containing 6xxx series alloy [20]. While it is acknowledged that the addition of scandium will increase the billet cost, the cost of the finished part is expected to be lower than after using alternative alloys.…”

Section: Implementation To Aluminium Alloyingmentioning

confidence: 99%

Critical Assessment 36: Assessing differences between the use of cerium and scandium in aluminium alloying

Czerwiński

2020

Materials Science and Technology

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Key factors affecting an application of two rare-earth metals cerium and scandium as alloying elements in aluminium are critically assessed. Having similar abundance in the Earth's crust, their cost and consumption differ by three to four orders of magnitude. The spectacular increment of alloy strength, achieved by scandium through the coherent, nano-scale, L12-ordered Al3Sc precipitates is faced by the prohibitive cost barrier. For cerium, the low cost is accompanied by rather limited strengthening effects: negligible solid-state solubility of cerium in aluminium makes age hardening ineffective so the alloy strength depends on the Al11Ce3 eutectic phase, formed during solidification. As a result, there are still no commercial aluminium alloys with large-scale applications that take advantage of cerium, scandium or their combination.

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Section: Implementation To Aluminium Alloyingmentioning

confidence: 99%

Critical Assessment 36: Assessing differences between the use of cerium and scandium in aluminium alloying

Czerwiński

2020

Materials Science and Technology

View full text Add to dashboard Cite

show abstract

Heat Treatments for Precipitation of Scandium-Containing Dispersoids in an Si-Containing Aluminum Alloys

Cited by 1 publication

References 7 publications

Critical Assessment 36: Assessing differences between the use of cerium and scandium in aluminium alloying

Critical Assessment 36: Assessing differences between the use of cerium and scandium in aluminium alloying

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