Microstructure of in-situ Synthesized (TiB+TiC)/Ti Composites Prepared by Hot-pressing

J Mater Sci Technol ›› 2003, Vol. 19 ›› Issue (Supl.): 101-102.

• Research Articles • Previous Articles Next Articles

Microstructure of in-situ Synthesized (TiB+TiC)/Ti Composites Prepared by Hot-pressing

Zhenzhu ZHENG, Lin GENG, Honglin WANG, Weimin ZHOU, Hongyu XU

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

Received:1900-01-01 Revised:1900-01-01 Online:2003-12-28 Published:2009-10-10
Contact: Zhenzhu ZHENG

Abstract

Abstract: In-situ 5 vol.pct TiB whiskers and TiC particulates reinforced Ti composites were fabricated by blending Ti powder and B4C particulates followed by reactive hot-pressing. The microstructure of the composites was investigated by using differential scanning calorimetry (DSC), X-ray diffraction (XRD), transmission electron microscope (TEM) and scanning electron microscope (SEM). The results showed that the reactive temperature between Ti and B4C is above 570°. Two kinds of reinforcements with different shapes were formed during hot-pressing: TiB short-fiber and equiaxed TiC particles. The interfacial bonding between the reinforcements and Ti matrix is perfect. No interfacial reaction between reinforcements and Ti matrix was found.

Key words: Ti matrix composite, In-situ synthesis, Powder metallurgy

Zhenzhu ZHENG, Lin GENG, Honglin WANG, Weimin ZHOU, Hongyu XU. Microstructure of in-situ Synthesized (TiB+TiC)/Ti Composites Prepared by Hot-pressing[J]. J Mater Sci Technol, 2003, 19(Supl.): 101-102.

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Microstructure of in-situ Synthesized (TiB+TiC)/Ti Composites Prepared by Hot-pressing

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