Journal
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
Volume 652, Issue -, Pages 325-352Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2015.11.074
Keywords
Bridgman anvil; High-pressure physics; Bulk nanostructured materials; Non-metallic materials; Allotropic phase transitions; History
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Funding
- Kyushu University Interdisciplinary Programs in Education and Projects in Research Development (PP) [27513]
- WPI-I2CNER for Interdisciplinary Researches
- MEXT, Japan [26220909, 22102004]
- Grants-in-Aid for Scientific Research [26220909] Funding Source: KAKEN
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High-pressure torsion (HPT) method currently receives much attention as a severe plastic deformation (SPD) technique mainly because of the reports of Prof. Ruslan Z. Valiev and his co-workers in 1988. They reported the efficiency of the method in creating ultrafine-grained (UFG) structures with predominantly high-angle grain boundaries, which started the new age of nanoSPD materials with novel properties. The HPT method was first introduced by Prof. Percy W. Bridgman in 1935. Bridgman pioneered application of high torsional shearing stress combined with high hydrostatic pressure to many different kinds of materials such as pure elements, metallic materials, glasses, geological materials (rocks and minerals), biological materials, polymers and many different kinds of organic and inorganic compounds. This paper reviews the findings of Bridgman and his successors from 1935 to 1988 using the HPT method and summarizes their historical importance in recent advancement of materials, properties, phase transformations and HPT machine designs. (C) 2015 Elsevier B.V. All rights reserved.
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