Strong, ductile magnesium-zinc nanocomposites

Michael De Cicco; Hiromi Konishi; Guoping Cao; Hong Seok Choi; Lih Sheng Turng; John H. Perepezko; Sindo Kou; Roderic Lakes; Xiaochun Li

doi:10.1007/s11661-009-0013-0

Strong, ductile magnesium-zinc nanocomposites

Michael De Cicco, Hiromi Konishi, Guoping Cao, Hong Seok Choi, Lih Sheng Turng, John H. Perepezko, Sindo Kou, Roderic Lakes, Xiaochun Li^*

^*Corresponding author for this work

University of Wisconsin-Madison

Research output: Contribution to journal › Journal Article › peer-review

106 Scopus citations

Abstract

Incorporated SiC nanoparticles are demonstrated to influence the solidification of magnesium-zinc alloys resulting in strong, ductile, and castable materials. By ultrasonically dispersing a small amount (less than 2 vol pct) of SiC nanoparticles, both the strength and ductility exhibit marked enhancement in the final casting. This unusual ductility enhancement is the result of the nanoparticles altering the selection of intermetallic phases. Using transmission electron microscopy (TEM), the MgZn₂ phase was discovered among SiC nanoparticle clusters in hypoeutectic compositions. Differential thermal analysis showed that the MgZn₂ formation resulted in elimination of other intermetallics in the Mg-4Zn nanocomposite and reduced their formation in Mg-6Zn and Mg-8Zn nanocomposites.

Original language	English
Pages (from-to)	3038-3045
Number of pages	8
Journal	Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Volume	40
Issue number	12
DOIs	https://doi.org/10.1007/s11661-009-0013-0
State	Published - 12 2009
Externally published	Yes

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title = "Strong, ductile magnesium-zinc nanocomposites",

abstract = "Incorporated SiC nanoparticles are demonstrated to influence the solidification of magnesium-zinc alloys resulting in strong, ductile, and castable materials. By ultrasonically dispersing a small amount (less than 2 vol pct) of SiC nanoparticles, both the strength and ductility exhibit marked enhancement in the final casting. This unusual ductility enhancement is the result of the nanoparticles altering the selection of intermetallic phases. Using transmission electron microscopy (TEM), the MgZn2 phase was discovered among SiC nanoparticle clusters in hypoeutectic compositions. Differential thermal analysis showed that the MgZn2 formation resulted in elimination of other intermetallics in the Mg-4Zn nanocomposite and reduced their formation in Mg-6Zn and Mg-8Zn nanocomposites.",

author = "{De Cicco}, Michael and Hiromi Konishi and Guoping Cao and Choi, {Hong Seok} and Turng, {Lih Sheng} and Perepezko, {John H.} and Sindo Kou and Roderic Lakes and Xiaochun Li",

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T1 - Strong, ductile magnesium-zinc nanocomposites

AU - De Cicco, Michael

AU - Konishi, Hiromi

AU - Cao, Guoping

AU - Choi, Hong Seok

AU - Turng, Lih Sheng

AU - Perepezko, John H.

AU - Kou, Sindo

AU - Lakes, Roderic

AU - Li, Xiaochun

PY - 2009/12

Y1 - 2009/12

N2 - Incorporated SiC nanoparticles are demonstrated to influence the solidification of magnesium-zinc alloys resulting in strong, ductile, and castable materials. By ultrasonically dispersing a small amount (less than 2 vol pct) of SiC nanoparticles, both the strength and ductility exhibit marked enhancement in the final casting. This unusual ductility enhancement is the result of the nanoparticles altering the selection of intermetallic phases. Using transmission electron microscopy (TEM), the MgZn2 phase was discovered among SiC nanoparticle clusters in hypoeutectic compositions. Differential thermal analysis showed that the MgZn2 formation resulted in elimination of other intermetallics in the Mg-4Zn nanocomposite and reduced their formation in Mg-6Zn and Mg-8Zn nanocomposites.

AB - Incorporated SiC nanoparticles are demonstrated to influence the solidification of magnesium-zinc alloys resulting in strong, ductile, and castable materials. By ultrasonically dispersing a small amount (less than 2 vol pct) of SiC nanoparticles, both the strength and ductility exhibit marked enhancement in the final casting. This unusual ductility enhancement is the result of the nanoparticles altering the selection of intermetallic phases. Using transmission electron microscopy (TEM), the MgZn2 phase was discovered among SiC nanoparticle clusters in hypoeutectic compositions. Differential thermal analysis showed that the MgZn2 formation resulted in elimination of other intermetallics in the Mg-4Zn nanocomposite and reduced their formation in Mg-6Zn and Mg-8Zn nanocomposites.

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DO - 10.1007/s11661-009-0013-0

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JO - Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science

JF - Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science

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Strong, ductile magnesium-zinc nanocomposites

Abstract

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