Fractographic Evaluation of Crack Initiation and Growth in Al-CNTs Nanocomposite Fabricated by Induction Melting

• Authors: M. Mansoor , M. Shahid
• Languages of publication: EN

Abstracts

EN

Presence of reinforcement material in the matrix plays a vital role in modifying the fracture topography besides mechanisms of deformation and strengthening of a composite. In the present study, Al-CNT composite was prepared using induction melting technique. The composite was cast into copper mold and cold rolled to ≈95% reduction in thickness. In as rolled condition, the composite exhibited a simultaneous increase in yield strength (>70%), tensile strength (>50%) and hardness (>40%). The fracture surfaces of the broken tensile specimens were studied using scanning electron microscope. It was observed that the crack initiation was occurred in the matrix followed by void link-ups for its growth. Micro cracks initiation in the matrix played a vital role to sustain the ductility of the material.

Keywords

EN

81.05.Ni

Discipline

• 81.05.Ni: Dispersion-, fiber-, and platelet-reinforced metal-based composites

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2015
• Volume: 128
• Issue: 2B
• Pages: B-276-B-278

Dates

published

2015-8

Contributors

author

M. Mansoor

• School of Chemical and Materials Engineering, National University of Sciences and Technology, Islamabad, Pakistan

author

M. Shahid

• School of Chemical and Materials Engineering, National University of Sciences and Technology, Islamabad, Pakistan

References

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Identifiers

DOI

10.12693/APhysPolA.128.B-276