Friction Stir Processing of Commercial Grade Marine Alloys to Enable Superplastic Forming
The use of friction stir processing (FSP) on marine grade aluminum sheet has been investigated with the objective of locally enhancing the material properties. This can potentially allow low cost commercial grade aluminum to be used in superplastic forming applications or further enhance the formability to allow more complex geometries to be formed. FSP has been demonstrated to enable superplasticity (uniform elongations >250%) in 5083-H116 over a range of friction stir processing conditions.
Daniel G. Sanders
C. B. Smith et al., "Friction Stir Processing of Commercial Grade Marine Alloys to Enable Superplastic Forming", Key Engineering Materials, Vol. 433, pp. 141-151, 2010