采用XD工艺合成TiAl合金及TiC／TiAl复合材料的研究

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 1994, Vol. 15 ›› Issue (12): 1445-1449.

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XD SYNTHESIS AND REACTIVE MECHANISM OF TiAl INTERMETALLICS AND TiC/TiAl COMPOSITE

Tao Chunhu, Wang Shoukai, Zhang Shaoqing, Yan Minggao

Faculty 4 of Beijing Institute of Aeronautical Materials, Beijing, 100095

Received:1993-08-15 Revised:1994-01-03 Online:1994-12-25 Published:1994-12-25

Abstract

Abstract: D(exothermic dispersi on)synthesis and its reactive mechanism for the TiAl intermetallics and TiAl based composite reinforced with TiC particles are investigated.The exper-imental results show that TiAl intermetallics and TiC/TiAl composite can be achieved by the XD process at higher temperature than the melting point of aluminium and that the thermopositive reaction between Ti powder and Al powder,3Ti±Al→Ti3Al and Ti+Al→ TiAl,promotes the synthesis of TiC.TiAl intermetallics is composed of γ TiAl+α2 Ti3Al and TiC/TiAl composite is composed of TiAl+Ti3Al+TiC phases.

Key words: synthetic metals, composite materials, constitution

CLC Number:

V257
TB331

Tao Chunhu;Wang Shoukai;Zhang Shaoqing;Yan Minggao. XD SYNTHESIS AND REACTIVE MECHANISM OF TiAl INTERMETALLICS AND TiC/TiAl COMPOSITE[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 1994, 15(12): 1445-1449.

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XD SYNTHESIS AND REACTIVE MECHANISM OF TiAl INTERMETALLICS AND TiC/TiAl COMPOSITE

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