The strengthening and toughening mechanism of Fe−Al/Al2O3 composite material

Sun Kangning; Bi Jianqiang; Liu Rui

doi:10.1007/BF02840828

Journal of Wuhan University of Technology Materials Science Edition ›› 2006, Vol. 21 ›› Issue (2) : 10 -13. DOI: 10.1007/BF02840828

Article

The strengthening and toughening mechanism of Fe−Al/Al₂O₃ composite material

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Abstract

By means of different checks and measures, we observed and analysed the microstructure of Fe−Al/Al₂O₃ composite material. We found that not only intragranular nanostructure grains and rod-like crystals but also fine-grained structure of the composite material as well as the bridging of the Fe−Al intermetallics compound contribute to the material's strength and toughness. It is shown that the strengthening and toughening of the Fe−Al/Al₂O₃ composite is the joint effect of a multiplicate strengthening and toughening mechanism.

Keywords

ceramic-base composite / strengthening and toughness / microstructure / intermetallics compound

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Sun Kangning, Bi Jianqiang, Liu Rui. The strengthening and toughening mechanism of Fe−Al/Al₂O₃ composite material. Journal of Wuhan University of Technology Materials Science Edition, 2006, 21(2): 10-13 DOI:10.1007/BF02840828

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