NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
The effect of TiB2 reinforcement on the mechanical properties of an Al-Cu-Li alloy-based metal-matrix compositeWeldalite 049, an Al-base Cu-Li-Mg-Ag-Zr alloy, achieves 700 MPa tensile strengths in the near-peak-aged temper in virtue of the nucleation of a T(1)-type platelike strengthening precipitate. Attention is presently given to the possibility that the alloy's modulus could be further increased through the addition of high-modulus TiB2 particles, using the 'XD' process, due to TiB2's good wettability with liquid Al. An 8-percent modulus increase is obtained with 4 vol pct TiB2.
Document ID
19910061413
Document Type
Reprint (Version printed in journal)
Authors
Langan, T. J. (Martin Marietta Labs. Baltimore, MD, United States)
Pickens, J. R. (Martin Marietta Laboratories Baltimore, MD, United States)
Date Acquired
August 14, 2013
Publication Date
July 1, 1991
Publication Information
Publication: Scripta Metallurgica et Materialia
Volume: 25
ISSN: 0956-716X
Subject Category
COMPOSITE MATERIALS
Funding Number(s)
CONTRACT_GRANT: NAS1-18531
Distribution Limits
Public
Copyright
Other