1. T. FURU and H. VATNE, Mater. Sci. Forum 843 (2000) 331.
2. W. LIBURA and J. ZASADZINSKI, in “Proceedings of the 5th International Extrusion Technology Seminar” (Chicago, IL, 1992) Vol. I, p. 486.
3. X. DUAN and T. SHEPPARD, in “the TMS Annual Meeting: Hot Deformation of Aluminum Alloys” (San Diego, CA, 2003) p. 99.
4. P. WANG, Alcoa Internal Report, 1995-11-22.
5. W. ANDERSON, Alcoa Internal Report, 1958-07-30.