Effect of SiC particulates on the microstructure of Al-6Ti-6Nb matrix composites fabricated by mechanical alloying technique

J Mater Sci Technol ›› 2001, Vol. 17 ›› Issue (S1): 61-64.

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Effect of SiC particulates on the microstructure of Al-6Ti-6Nb matrix composites fabricated by mechanical alloying technique

Dechang JIA, Qingchang MENG, Yu ZHOU, Tingquan LEI

School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China

Received:2000-10-08 Revised:2000-12-29 Online:2001-10-28 Published:2009-10-10
Contact: Dechang JIA

Abstract

Abstract: Millimeter sized SiC (m-SiCp) and nanometer sized SiC (n-SiCp) particulates reinforced Al-6Ti-6Nb matrix composites were prepared by mechanical alloying (MA) and later hot-press sintering. Their microstructure was investigated to know the influence of the incorporated SiC particles. The secondary Al3Ti, AlNb2 intermetallics particle size, the Al matrix grain size and their submicrostructure are strongly affected, and they are correlated with the thermal stability of the composites.

Key words:

Dechang JIA, Qingchang MENG, Yu ZHOU, Tingquan LEI. Effect of SiC particulates on the microstructure of Al-6Ti-6Nb matrix composites fabricated by mechanical alloying technique[J]. J Mater Sci Technol, 2001, 17(S1): 61-64.

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Effect of SiC particulates on the microstructure of Al-6Ti-6Nb matrix composites fabricated by mechanical alloying technique

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