Paper Title:
Mechanical and Fracture Behaviors of (Al2O3+SiCp)/AZ91 Hybrid Mg Matrix Composite
  Abstract

Hybrid AZ91 Mg matrix composites reinforced with ceramic short fiber (Al2O3) and particle (Si or SiCp) were fabricated by squeeze casting method. Microstructure of hybrid Mg matrix was examined and mechanical and fracture properties were characterized. It was found that squeeze casting is effective method for the fabrication of hybrid Mg matrix composites with fairly well distributed reinforcement and near defect-free solidification microstructure. Strength and wear resistance were enhanced with hybridization of reinforcements. To investigate fracture properties of hybrid Mg matrix composites, in-situ micro-fracture experiment was performed in SEM. Crack was initiated and propagated mainly by decohesion of interfaces between Mg matrix and reinforcements. Large ceramic particles tend to fracture and thus seem to be undesirable for mechanical and fracture behavior of hybrid Mg matrix composites.

  Info
Periodical
Materials Science Forum (Volumes 449-452)
Edited by
S.-G. Kang and T. Kobayashi
Pages
653-656
DOI
10.4028/www.scientific.net/MSF.449-452.653
Citation
I. M. Park, I. D. Choi , K. M. Cho, "Mechanical and Fracture Behaviors of (Al2O3+SiCp)/AZ91 Hybrid Mg Matrix Composite", Materials Science Forum, Vols. 449-452, pp. 653-656, 2004
Online since
March 2004
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Ivo Dlouhý, Zdeněk Chlup, Aldo Roberto Boccaccini
Abstract:A number of examples exist that indicate the potential for increasing the toughness of brittle matrices by dispersing different...
115
Authors: Joon Hyun Lee, Jeong Guk Kim
Abstract:The fracture behavior of Nicalon fiber reinforced calcium aluminosilicate (CAS) glass-ceramic matrix composites (Nicalon/CAS) was...
825
Authors: De Chun Lou, Jan K. Solberg, Odd Magne Akselsen, Nina Dahl
Abstract:In this paper, new steel matrix composites have been developed by powder metallurgy/HIP and abrasive wear and aluminum sticking resistance...
21
Authors: Zhu Rui, Yu Tao Zhao, Song Li Zhang, Zhi Hong Jia
Chapter 1: Non-Ferrous Metal Material
Abstract:Abstract:Aluminum matrx composites reinforced by in situ ZrB2 particles are fabricated from A356-AlB-K2ZrF6 system via in-situ melt reaction...
122
Authors: Dong Chen, Zhe Chen, Peng Zhang, Yi Jie Zhang, Haiheng Ma, Hao Wei Wang
Chapter 5: Metal Alloy Materials
Abstract:In-situ TiB2 particles reinforced AA7055 composites were fabricated through mixed-salts route and their bending properties were...
1005