October 5, 2004

5:30 Social Hour

6:30 - 7:30 Dinner

7:30 - Speaker : John Figert
Metallurgical Engineer, P.E.
Lockheed Martin Space Operations, Houston, Texas

John Figert has performed failure analysis investigations and worked with military aircraft and aerospace processes for 20 years. He previously worked at the Naval Aviation Depot in Alameda, CA for 4 years and previously worked at the San Antonio Air Logistic Command at Kelly AFB for 8 years.  John is currently a Materials and Process Engineer from Lockheed Martin Space Operations (LMSO) at NASA-Johnson Space Center in Houston, Texas.

John graduated from the University of Arizona in 1984 with a B.S. in Metallurgical Engineering.  He received his Metallurgical Engineering P.E. in 1999.   Please note that John has taken 13 courses from ASM International. 

John has been working with evaluations and heat treat processes for friction stir welding for about 3 years. 

October Meeting

Stress Corrosion Cracking of Heat Treated, Friction Stir Welded 7050 Aluminum

An in-depth failure analysis was conducted at the NASA Johnson Space Center to understand the formation of cracks in two friction-stir-welded 7050 Aluminum beams after twenty months of storage.  The beams were stored without protective coatings, and both cracks were present in the 7050 base material and located at 40 inches from where the friction stir welding began.  All testing performed for qualification indicated a stress corrosion resistant material with MIL-HDBK-5 (A-basis) T7451 mechanical properties. 

Meeting at HESS

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