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Fracture resistance of Ti-5Al-2.5Sn extra-low interstitial castingsFracture toughness and cyclic crack propagation data for Ti-5Al-2.5Sn extra-low interstitial (ELI) castings, 0.51 and 2.54 cm (0.20 and 1.00 in.) thick, at 394, 294, 77, and 20 K (250, 70, -320, and -423 F), are presented. Both surface flaw and compact tension geometries were tested. Comparison is made with other titanium alloys in both wrought and cast forms. Crack propagation resistance is comparable to wrought Ti-5Al-2.5Sn ELI, even with the extremely coarse as-cast grain size encountered.
Document ID
19790040244
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Fiftal, C. F. (Martin Marietta Aerospace Denver, Colo., United States)
Bolstad, D. A. (Martin Marietta Aerospace New Orleans, La., United States)
Misra, M. S. (Martin Marietta Aerospace Los Angeles, Calif., United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1978
Subject Category
Metallic Materials
Meeting Information
Meeting: Toughness and fracture behavior of titanium; Symposium
Location: Toronto
Country: Canada
Start Date: May 1, 1977
End Date: May 6, 1977
Accession Number
79A24257
Funding Number(s)
CONTRACT_GRANT: NAS8-30300
Distribution Limits
Public
Copyright
Other

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