Evaluation of Fracture Toughness of Metal Matrix Composites

Abstract
Keywords
Introduction
Materials and Methods
Results
Discussion
Conclusion
Acknowledgement
Funding Sources
Conflict of Interest
Data Availability Statement
Ethics Statement
References

Article | Open Access

Evaluation of Fracture Toughness of Metal Matrix Composites

Volume 5, Number 2

T. Parameshwaranpillai¹ and P. R. Lekshminarayanan²

¹Anna University, Tiruchirappalli - 620 024 (India).

²Annamalai University, Chidamparam - 608 002 (India).

DOI : http://dx.doi.org/10.13005/msri/050211

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ABSTRACT:

An experimental study was conducted to evaluate fracture toughness of metal matrix composite (MMC) analysis by heat treatment processes. The material was a 7.5 mm thick extrusion of 2124 aluminum alloy with 10 % SiC particulates. Fractographic examinations shows that failure occurred by the micro-mechanism involved with plastic deformation although the specimens broken by brittle fracture. Fracture toughness values depend upon the homogeneous distribution of the SiC particulates and its grain size. The observed K1c value is optimized by Taguchi technique by using 7.5 Design Taguchi software.

KEYWORDS:

Metal matrix composites; Heat treatment; fatigue pre cracking; cyclic loading; brittle fracture

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