From

Investigation of Weld Defects in Similar and Dissimilar Friction Stir Welded Joints of Aluminium Alloys of AA7075 and AA6061 by X-ray Radiography

Chetan Patil, Hemant Patil, Hiralal Patil

American Journal of Materials Engineering and Technology. 2016, 4(1), 11-15 doi:10.12691/materials-4-1-3