FRACTURE BEHAVIOUR OF SiC WHISKER REINFORCED Al COMPOSITES

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Acta Metallurgica Sinica (English Letters) ›› 1989, Vol. 2 ›› Issue (12): 403-408.

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FRACTURE BEHAVIOUR OF SiC WHISKER REINFORCED Al COMPOSITES

CAO Li JIANG Chiping YAO Zhongkai LEI Tingquan Harbin Institute of Technology,Harbin,China

Received:1989-12-11 Revised:1989-12-11 Online:1989-12-11 Published:2009-10-10

Abstract

Abstract: The dynamic tensile processes of silicon carbide whisker reinforced Al composite(SiC_w/Al) with 22% V_f have been in situ observed with a scanning electron microscope equipped with a tensile stand.The results show that a number of microcracks have formed as the tensile stress increases to 180～190 MPa.Microcracks form in most cases at the whisker ends.The frac- ture behaviour of SiC_w/Al composite observed has been explained theoretically.

Key words: composite, fracture, stress distribution, SiC whiskers, aluminum

CAO Li JIANG Chiping YAO Zhongkai LEI Tingquan Harbin Institute of Technology,Harbin,China. FRACTURE BEHAVIOUR OF SiC WHISKER REINFORCED Al COMPOSITES[J]. Acta Metallurgica Sinica (English Letters), 1989, 2(12): 403-408.

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FRACTURE BEHAVIOUR OF SiC WHISKER REINFORCED Al COMPOSITES

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