Incremental high pressure torsion as a novel severe plastic deformation process: Processing features and application to copper

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING

卷:626

Article

Hohenwarter, A.^1,2 

[1] Univ Leoben, Dept Mat Phys, A-8700 Leoben, Austria

[2] Austrian Acad Sci, Erich Schmid Inst Mat Sci, A-8700 Leoben, Austria

关键词: High-pressure torsion;    Incremental;    Severe plastic deformation (SPD);    Upscale;    Ultrafine-grained;    Copper;   

DOI  :  10.1016/j.msea.2014.12.041

来源: Elsevier

【 摘 要 】

High pressure torsion is known as one of the most popular severe plastic deformation processes. However, it has certain size limitations, especially regarding the thickness of the processed samples. In this contribution incremental high pressure torsion is introduced as a novel severe plastic deformation process. This further development of conventional high pressure torsion is capable of delivering specimens having an extraordinarily high aspect-ratio of thickness to diameter. The features of this process combined with a case-study on a pure copper specimen with a deformed diameter of 50 mm and a thickness of 40 mm is presented. (C) 2014 The Author. Published by Elsevier B.V.

【 授权许可】

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