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Residual Stress Effects on Crack Growth in Nugget of Al-Li Alloy 2195-T8 Friction Stir Welded Joints

✍ Scribed by Ma, Yu E; Wang, Li Ning; Liu, Bao Qi


Book ID
121247599
Publisher
Trans Tech Publications Inc.
Year
2011
Tongue
English
Weight
554 KB
Volume
138-139
Category
Article
ISSN
1660-9336

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The role of longitudinal residual stress on propagation of fatigue cracks was examined in friction stir welds produced in 2024-T351 aluminum alloy. Fatigue crack growth rate was obtained through constant DK Iapp tests for notches at different distances from the weld centerline. Subsequently, crack g