Fracture Behavior and Crack Growth Rate of Al-Li Alloy Friction Stir Welded Joints

Yu E Ma

doi:10.4028/www.scientific.net/AMR.217-218.131

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 217-218Fracture Behavior and Crack Growth Rate of Al-Li...

Fracture Behavior and Crack Growth Rate of Al-Li Alloy Friction Stir Welded Joints

Abstract:

Third generation Al-Li alloy 2195 and 2198 were studied. The material properties of these two Al-Li alloy were compared with traditional alloy 2024; damage tolerance properties was tested and compared with 2024 as well. Microstructure of parent material and welded sample was studied and compared. Crack growth rate was tested and compared. Some conclusions were drawn: Al-Li alloy had a great strength and damage tolerance; local inhomogeneities microstructure in welded samples, which created the difference of damage tolerance and the tendency of crack growth rate in welded samples.

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Periodical:

Advanced Materials Research (Volumes 217-218)

Pages:

131-136

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.217-218.131

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Online since:

March 2011

Authors:

Yu E Ma

Keywords:

Al-Li Alloy, Crack Growth Rate, Damage Tolerance, Friction Stir Weld

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