Advantages and Limitations of HPT: A Review
The improvements in the design of the HPT tools lead to a well defined torsion deformation and permits, therefore, a comparison with other SPD-techniques. The design of the tools, the advantages and disadvantages of HPT, as well as the limitation in the sample size are discussed.
Yuri Estrin and Hans Jürgen Maier
R. Pippan et al., "Advantages and Limitations of HPT: A Review", Materials Science Forum, Vols. 584-586, pp. 16-21, 2008