Failure mechanisms of a SiC particles/2024Al composite under dynamic loading

Y. X. Lu; X. M. Meng; C. S. Lee; R. K Y Li; C. G. Huang

Failure mechanisms of a SiC particles/2024Al composite under dynamic loading

Y. X. Lu, X. M. Meng, C. S. Lee, R. K Y Li, C. G. Huang

Research output: Journal Publications and Reviews › RGC 22 - Publication in policy or professional journal

Abstract

Dynamic mechanical response of a 20 vol% silicon carbide particles (SiCp) reinforced 2024 Al composite prepared by powder metallurgy techniques were studied with a split Hopkinson bar. The fracture mechanisms and the deformation microstructure were examined with Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM). The present results indicate that the composite has a strong SiC-Al interfacial bonding; failure of the material is mainly caused by fracture of SiC particles and tearing failure of the SiC-Al interface. This failure by interface tearing with adhesion of an aluminium layer on SiC particles on the fracture surfaces has not been reported in SiC particle-reinforced aluminium composites. High-resolution transmission electron microscopy studies showed that many of the SiC-Al interfaces have coincident site lattice structures, which are considered to make a significant contribution to the strong interfacial bonding.

Original language	English
Pages (from-to)	49-55
Journal	Physica Status Solidi (A) Applied Research
Volume	169
Issue number	1
Publication status	Published - 1998

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title = "Failure mechanisms of a SiC particles/2024Al composite under dynamic loading",

abstract = "Dynamic mechanical response of a 20 vol% silicon carbide particles (SiCp) reinforced 2024 Al composite prepared by powder metallurgy techniques were studied with a split Hopkinson bar. The fracture mechanisms and the deformation microstructure were examined with Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM). The present results indicate that the composite has a strong SiC-Al interfacial bonding; failure of the material is mainly caused by fracture of SiC particles and tearing failure of the SiC-Al interface. This failure by interface tearing with adhesion of an aluminium layer on SiC particles on the fracture surfaces has not been reported in SiC particle-reinforced aluminium composites. High-resolution transmission electron microscopy studies showed that many of the SiC-Al interfaces have coincident site lattice structures, which are considered to make a significant contribution to the strong interfacial bonding.",

author = "Lu, {Y. X.} and Meng, {X. M.} and Lee, {C. S.} and Li, {R. K Y} and Huang, {C. G.}",

year = "1998",

language = "English",

volume = "169",

pages = "49--55",

journal = "Physica Status Solidi (A) Applied Research",

issn = "0031-8965",

publisher = "Wiley-VCH Verlag GmbH",

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TY - JOUR

T1 - Failure mechanisms of a SiC particles/2024Al composite under dynamic loading

AU - Lu, Y. X.

AU - Meng, X. M.

AU - Lee, C. S.

AU - Li, R. K Y

AU - Huang, C. G.

PY - 1998

Y1 - 1998

N2 - Dynamic mechanical response of a 20 vol% silicon carbide particles (SiCp) reinforced 2024 Al composite prepared by powder metallurgy techniques were studied with a split Hopkinson bar. The fracture mechanisms and the deformation microstructure were examined with Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM). The present results indicate that the composite has a strong SiC-Al interfacial bonding; failure of the material is mainly caused by fracture of SiC particles and tearing failure of the SiC-Al interface. This failure by interface tearing with adhesion of an aluminium layer on SiC particles on the fracture surfaces has not been reported in SiC particle-reinforced aluminium composites. High-resolution transmission electron microscopy studies showed that many of the SiC-Al interfaces have coincident site lattice structures, which are considered to make a significant contribution to the strong interfacial bonding.

AB - Dynamic mechanical response of a 20 vol% silicon carbide particles (SiCp) reinforced 2024 Al composite prepared by powder metallurgy techniques were studied with a split Hopkinson bar. The fracture mechanisms and the deformation microstructure were examined with Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM). The present results indicate that the composite has a strong SiC-Al interfacial bonding; failure of the material is mainly caused by fracture of SiC particles and tearing failure of the SiC-Al interface. This failure by interface tearing with adhesion of an aluminium layer on SiC particles on the fracture surfaces has not been reported in SiC particle-reinforced aluminium composites. High-resolution transmission electron microscopy studies showed that many of the SiC-Al interfaces have coincident site lattice structures, which are considered to make a significant contribution to the strong interfacial bonding.

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M3 - RGC 22 - Publication in policy or professional journal

SN - 0031-8965

VL - 169

SP - 49

EP - 55

JO - Physica Status Solidi (A) Applied Research

JF - Physica Status Solidi (A) Applied Research

IS - 1

ER -

Failure mechanisms of a SiC particles/2024Al composite under dynamic loading

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