Microstructure of the Ti{sub 3}Al(Nb)/TiB composite produced by combustion synthesis

Journal Article · Wed Nov 01 00:00:00 EST 1995 · Metallurgical Transactions, A

OSTI ID:131487

Yang, W Y ^[1]; Yi, H C ^[2]; Petric, A ^[3]

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1. Univ. of Science and Technology, Beijing (China)
2. Guingne International, Paradise, Newfoundland (Canada)
3. McMaster Univ., Hamilton, Ontario (Canada). Dept. of Materials Science and Engineering

The combustion synthesis technique was used to produce the intermetallic composite {alpha}{sub 2}-Ti{sub 3}Al(Nb) reinforced with TiB fibers. The microstructure was examined by scanning electron microscopy (SEM), X-ray diffraction analysis, and transmission electron microscopy (TEM). Neither the {beta} nor the {beta}{sub 0} phase was found in the intermetallic matrix. The TiB phase with B27 structure existed in the form of polycrystalline faceted whiskers growing in the <010> direction of the unit cell. No defined crystallographic relationship between the TiB whiskers and the matrix was found in the investigation.

• OSTI ID: 131487
• Journal Information: Metallurgical Transactions, A, Vol. 26, Issue 11; Other Information: PBD: Nov 1995
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
COMPOSITE MATERIALS
SYNTHESIS
MICROSTRUCTURE
TITANIUM ALLOYS
ALUMINIUM ALLOYS
NIOBIUM ALLOYS
TITANIUM BORIDES
INTERMETALLIC COMPOUNDS
COMBUSTION WAVES
POWDERS
TITANIUM
ALUMINIUM
NIOBIUM
BORON
CHEMICAL REACTIONS
SCANNING ELECTRON MICROSCOPY
X-RAY DIFFRACTION
TRANSMISSION ELECTRON MICROSCOPY
WHISKERS