Journal
INTERNATIONAL JOURNAL OF MATERIALS RESEARCH
Volume 100, Issue 12, Pages 1653-1661Publisher
CARL HANSER VERLAG
DOI: 10.3139/146.110224
Keywords
High pressure torsion; Severe plastic deformation; Ultrafine-grained; Microstructure; Processing
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High pressure torsion is a well known and widespread processing technique for severe plastic deformation. The aim of high pressure torsion and other comparable techniques is to obtain ultrafine-grained or even nanocrystalline materials with enhanced mechanical and physical propel-ties compared with their coarse-grained counterparts. Generally this refinement process is strongly influenced by processing parameters such as temperature or accumulated strain, but can also simply be affected by the entire experimental setup. Therefore, the benefits and limitations of the process with regard to grain refinement, homogeneity and specimen size, underlined with experimental results using different tools, will be discussed.
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