期刊
ADVANCED ENGINEERING MATERIALS
卷 17, 期 7, 页码 933-941出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adem.201400585
关键词
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资金
- National Natural Science Foundation of China (NSFC) [51101042, 51271064, 51471063]
- High Technology Research and Development Program of China (863) [2013AA031202]
- Fundamental Research Funds for the Central Universities [HIT.BRETIII.201401]
In situ TiC particle, Ti3SiC2 bar and ultrafine Ti5Si3 needle reinforced Ti6Al4V (TiC+Ti3SiC2+Ti5Si3)/Ti6Al4V) composites with a tailored distribution were sucessfully designed and fabricated. The first-scale tailored architecture of reinforcement is the in situ synthesized Ti3SiC2 bars and near-equiaxed TiC particles on the network boundary around Ti6Al4V particles. The secondary-scale architecture is the ultrafine Ti5Si3 needles precipitated in intergranular beta phase of center Ti6Al4V matrix particle. The results showed that the two-scale tailored architecture of different reinforcements can significantly improve strength remained with moderate ductility of the composites.
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