Influences of SiC Particle Additions on the Grain Refinement of Mg–Zn Alloys
Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review
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Magnesium Technology 2019. ed. / Vineet V. Joshi; Neale R. Neelameggham; J. Brian Jordon; Dmytro Orlov. Cham: Springer International Publishing, 2019. p. 331-338 (Minerals, Metals and Materials Series).
Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review
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TY - CHAP
T1 - Influences of SiC Particle Additions on the Grain Refinement of Mg–Zn Alloys
AU - Huang, Yuanding
AU - Gu, Jiang
AU - You, Sihang
AU - Kainer, Karl Ulrich
AU - Hort, Norbert
N1 - Conference code: 148
PY - 2019
Y1 - 2019
N2 - A homogeneous microstructure of as-cast magnesium alloys is desired to improve their mechanical properties when achieving lightweighting. Recently, it was demonstrated that the addition of SiC refines both Mg–Al and Mg–Zn alloys. The present work investigates the effect of SiC particle additions on the grain refinement of Mg–Zn alloys, including their addition amount, particle size, addition temperature and holding time. The microstructures were characterized using XRD, SEM and EDS. It was found that the addition of SiC particles refines the grains of Mg–Zn alloys. With increasing their amount and reducing the addition temperature and holding time, the grain size decreases. The optimal SiC particle size for nucleation of alpha-Mg was found to be around 2Â µm. The responsible refinement mechanism is attributed to the formation of (Mn, Si)-enriched intermetallics by the interactions between SiC and impurity Mn in alloys.
AB - A homogeneous microstructure of as-cast magnesium alloys is desired to improve their mechanical properties when achieving lightweighting. Recently, it was demonstrated that the addition of SiC refines both Mg–Al and Mg–Zn alloys. The present work investigates the effect of SiC particle additions on the grain refinement of Mg–Zn alloys, including their addition amount, particle size, addition temperature and holding time. The microstructures were characterized using XRD, SEM and EDS. It was found that the addition of SiC particles refines the grains of Mg–Zn alloys. With increasing their amount and reducing the addition temperature and holding time, the grain size decreases. The optimal SiC particle size for nucleation of alpha-Mg was found to be around 2Â µm. The responsible refinement mechanism is attributed to the formation of (Mn, Si)-enriched intermetallics by the interactions between SiC and impurity Mn in alloys.
KW - Grain refinement
KW - Magnesium–Zinc alloys
KW - Microstructure
KW - Solidification
KW - Engineering
UR - http://www.scopus.com/inward/record.url?scp=85064639562&partnerID=8YFLogxK
U2 - 10.1007/978-3-030-05789-3_49
DO - 10.1007/978-3-030-05789-3_49
M3 - Article in conference proceedings
AN - SCOPUS:85064639562
SN - 978-3-030-05788-6
T3 - Minerals, Metals and Materials Series
SP - 331
EP - 338
BT - Magnesium Technology 2019
A2 - Joshi, Vineet V.
A2 - Neelameggham, Neale R.
A2 - Jordon, J. Brian
A2 - Orlov, Dmytro
PB - Springer International Publishing
CY - Cham
T2 - Magnesium Technology Symposium held at the 148th TMS Annual Meeting and Exhibition - TMS 2019
Y2 - 10 March 2019 through 14 March 2019
ER -