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Small Business Innovation Research/Small Business Tech Transfer

Post Process Characterization of Friction Stir Welded Components, Phase II

Completed Technology Project

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Post Process Characterization of Friction Stir Welded Components, Phase II
Luna Innovations Incorporated proposes in this STTR Phase II project to continue development and validation of Luna's amplitude-dependent, nonlinear ultrasonic inspection technique applied to friction stir welded (FSW) components. The technique was successfully demonstrated in the Phase I project on samples made from aluminum-lithium alloy 2195. The proposed Phase II project will focus on refining the ultrasonic hardware and software needed to implement the technique on materials and weld geometries with near-term application in support of the Constellation launch vehicle development program. A multi-channel sensor implementation is planned. Luna's results will be compared to conventional NDE techniques currently used; this testing will be conducted primarily by collaborators at the University of Alabama, Huntsville (UAH). The project will also include a review of state-of-the-art NDE techniques applied to FSW joints and early planning for comprehensive probability of detection experiments needed to fully qualify the new technique. More »

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This is a historic project that was completed before the creation of TechPort on October 1, 2012. Available data has been included. This record may contain less data than currently active projects.