Guided W a Ves for the Inspection of Titanium Diffusion Bonds

The aggressive environment encountered by the high speed civil transport (supersonic) aircraft (HSCT) places severe requirements on the types ofmaterials used in its construction. The state-ofthe-art materials available to the commercial aerospace industry will not meet these severe environmental requirements. New materials have been evaluated that will meet these severe environmental requirements. One such material is the super plastic formedldiffusion bonded (SPF/DB) titanium. Structures with this material have been fabricated to be used on the HSCT aircraft. Because the HSCT is a commercial program, the F AA requires that nondestructive evaluation techniques must be developed for the inspection of these structures.