Fracture and Fatigue of Diffusion, Adhesive, and Roll Bonded Aluminum, Titanium, and Ultrahigh Carbon Steel Laminates.
Final rept. for period 16 May 77-16 May 78,
VOUGHT CORP ADVANCED TECHNOLOGY CENTER INC DALLAS TEX
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The fracture characteristics of twelve different diffusion bonded AlAl, TiTi and Ultrahigh Carbon SteelIron and adhesively bonded AlEpoxy laminates were evaluated. The effects of periodic overloads on the fatigue crack retardation behavior in a roll bonded AlAl laminate was also investigated. Specific systems investigated included diffusion bonded 7475 Al1100 Al, 7475 Al6061 Al, 7075 Al1100 Al, 7075 Al7072 Al, Ti-6Al-4VCommercially Pure Ti, and Ultrahigh Carbon SteelInterstitial Free Iron adhesively bond 7475 AlFM73M and 7075 AlFM73M and roll bonded 7475 Al1100 Al. It was found that all laminates with Al primaries exhibited substantially higher critical fracture toughness in the crack divider orientation than the corresponding baseline monolithic plate alloys.
- Laminates and Composite Materials
- Metallurgy and Metallography
- Fabrication Metallurgy