1. Friction stir welding and related friction process characteristics;Thomas,1998
2. Friction Stir Welding and Processing: Science and Engineering;Mishra,2014
3. Grain structure evolution, grain boundary sliding and material flow resistance in friction welding of Alloy 718;Liu;Mater. Sci. Eng.,2018
4. W. M. Thomas, E. D. Nicholas, J. C. Needham, M. G. Murch, P. Smith-Temple, C. J. Dawes, Friction welding, U.S. Patent No. 5,460.317, (Oct 24. 1995), https://patents.google.com/patent/US5460317A/en..
5. J. W. Arbegast, P. J. Hartley, Method of using friction stir welding to repair weld defects and to help avoid weld defects in intersecting welds, U.S. Patent No. 6,230,957, (May 15. 2001), https://patents.google.come/patent/US6230957B1/en.