Paper Title:
Microstructure and Strengthening Mechanism of TiCp/ZA-12 Composites
  Abstract

TiCp/ZA-12 composites have been fabricated by XDTM method and stirring-casting techniques. Microstructure of the composites has been studied by means of scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The results show that TiC particles distribute uniformly in ZA-12 matrix alloy. The interface between reinforcements and matrix alloy is very clean, and there is not interface reaction between TiC particles and ZA-12 matrix alloy. The tests for mechanical properties reveal that the tensile strength, yield strength, elastic modulus and hardness of the composites are improved obviously due to the incorporation of TiC particles. The strengthening mechanisms are attributed to the following factors: dispersion strengthening of TiC particles, grain refinement of ZA-12 matrix alloy and high-density dislocations existing in ZA-12 alloy.

  Info
Periodical
Key Engineering Materials (Volumes 348-349)
Edited by
J. Alfaiate, M.H. Aliabadi, M. Guagliano and L. Susmel
Pages
221-224
DOI
10.4028/www.scientific.net/KEM.348-349.221
Citation
W. Xiang, G. B. Ying, "Microstructure and Strengthening Mechanism of TiCp/ZA-12 Composites", Key Engineering Materials, Vols. 348-349, pp. 221-224, 2007
Online since
September 2007
Export
Price
$32.00
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