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Investigation of Wear Anisotropy in a Severely Deformed Al-Al3Ti Composite

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Abstract

In the current investigation, Al-Al3Ti composite was processed by equal channel angular pressing (ECAP). ECAP was carried out using routes A and BC up to eight passes of deformation. It was observed that increasing the number of ECAP passes causes fragmentation of Al3Ti platelet particles and decreases their sizes compared to their original sizes in the undeformed Al-Al3Ti specimens. Moreover, the microstructure of route A-ECAPed Al-Al3Ti composite samples showed a strong alignment of the fragmented Al3Ti particles parallel to the pressing axis. On the other hand, ECAPed Al-Al3Ti alloy specimens by route BC have a relatively homogeneous distribution of Al3Ti particles. Because of the platelet Al3Ti particle fragmentation by ECAP, all the ECAPed specimens showed small anisotropy in their wear property in spite of this observed anisotropic microstructure induced by route A-ECAP.

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Acknowledgments

This work is supported by the “Grant-in-Aid for Scientific Research on Priority Areas (19025005)” and the “Tokai Region Nanotechnology Manufacturing Cluster in Knowledge Cluster Initiative” by the Ministry of Education, Culture, Sports, Science and Technology of Japan. One of the authors (SE) acknowledges the financial support in the form of a scholarship from the Egyptian government. YW gratefully acknowledges the financial support from The Light Metal Educational Foundation Inc. of Japan.

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Authors and Affiliations

  1. Central Metallurgical Research & Development Institute, Helwan-El, Tebbin, Cairo, 11.421, Egypt

    Shimaa El-Hadad (Researcher)

  2. Department of Engineering Physics, Electronics and Mechanics, Graduate School of Engineering, Nagoya Institute of Technology, Nagoya, 466-8555, Japan

    Hisashi Sato (Associate Professor) & Yoshimi Watanabe (Professor)

Authors
  1. Shimaa El-Hadad
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  2. Hisashi Sato
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  3. Yoshimi Watanabe
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Correspondence to Shimaa El-Hadad.

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Manuscript submitted September 15, 2011.

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El-Hadad, S., Sato, H. & Watanabe, Y. Investigation of Wear Anisotropy in a Severely Deformed Al-Al3Ti Composite. Metall Mater Trans A 43, 3249–3256 (2012). https://doi.org/10.1007/s11661-012-1127-3

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  • DOI: https://doi.org/10.1007/s11661-012-1127-3

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