Nucleation phenomenon in SiC particulate reinforced magnesium composite

Journal Article · Fri Oct 08 00:00:00 EDT 1999 · Scripta Materialia

DOI:https://doi.org/10.1016/S1359-6462(99)00247-X· OSTI ID:20000421

Cai, Y; Taplin, D; Tan, M J; Zhou, W

Metal matrix composite (MMC) technology can improve the service performance of matrix metals and alloys. Most magnesium alloy based MMCs are produced via a casting process, therefore the casting microstructures are of vital importance to their performance in service. The formation of microstructure during solidification of MMCs is mainly influenced by four factors: nucleation (or its absence) on particles; particle pushing by the solidification front; particle settling in the melt; and chemical reaction between particles and matrix. The primary objective of the present research was to study the interfacial microstructure of SiC particulate reinforced magnesium matrix composite. Great effort was made to identify the orientation relationship between SiC particles and the matrix phase, because this relationship is very important in explaining the process of nucleation on the particles.

• Research Organization: Nanyang Technological Univ. (SG)
• OSTI ID: 20000421
• Journal Information: Scripta Materialia, Vol. 41, Issue 9; Other Information: PBD: 8 Oct 1999; ISSN 1359-6462
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
MICROSTRUCTURE
CASTING
MAGNESIUM
SILICON CARBIDES
COMPOSITE MATERIALS
INTERFACES
NUCLEATION
ORIENTATION