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

被引：70

作者：

Hohenwarter, A. ^{[1
,2
]}

机构：

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

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

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2015年 / 626卷

基金：

奥地利科学基金会;

关键词：

High-pressure torsion; Incremental; Severe plastic deformation (SPD); Upscale; Ultrafine-grained; Copper; CHANNEL ANGULAR EXTRUSION; STACKING-FAULT ENERGY; MICROSTRUCTURAL EVOLUTION; AL-ALLOYS; HPT; REFINEMENT; TITANIUM; BEHAVIOR; CU;

D O I：

10.1016/j.msea.2014.12.041

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

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.

引用

页码：80 / 85

页数：6

共 25 条

[1] Significance of stacking fault energy on microstructural evolution in Cu and Cu-Al alloys processed by high-pressure torsion [J].

An, X. H. ;

Lin, Q. Y. ;

Wu, S. D. ;

Zhang, Z. F. ;

Figueiredo, R. B. ;

Gao, N. ;

Langdon, T. G. .

PHILOSOPHICAL MAGAZINE, 2011, 91 (25) :3307-3326

[2] On the strain rate sensitivity of the flow stress of ultrafine-grained Cu processed by equal channel angular extrusion (ECAE) [J].

Conrad, H ;

Jung, K .

SCRIPTA MATERIALIA, 2005, 53 (05) :581-584

[3] Effect of deformation schedules and initial states on structure and properties of Cu-0.18% Zr alloy after high-pressure torsion and heating [J].

Dobatkin, Sergey V. ;

Shangina, Daria V. ;

Bochvar, Natalia R. ;

Janecek, Milos .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2014, 598 :288-292

[4] Influence of dislocation-solute atom interactions and stacking fault energy on grain size of single-phase alloys after severe plastic deformation using high-pressure torsion [J].

Edalati, Kaveh ;

Akama, Daichi ;

Nishio, Asuki ;

Lee, Seungwon ;

Yonenaga, Yosuke ;

Cubero-Sesin, Jorge M. ;

Horita, Zenji .

ACTA MATERIALIA, 2014, 69 :68-77

[5] Equal-Channel Angular Pressing and High-Pressure Torsion of Pure Copper: Evolution of Electrical Conductivity and Hardness with Strain [J].

Edalati, Kaveh ;

Imamura, Kazutaka ;

Kiss, Takanobu ;

Horita, Zenji .

MATERIALS TRANSACTIONS, 2012, 53 (01) :123-127

[6] Significance of temperature increase in processing by high-pressure torsion [J].

Edalati, Kaveh ;

Miresmaeili, Reza ;

Horita, Zenji ;

Kanayama, Hiroshi ;

Pippan, Reinhard .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2011, 528 (24) :7301-7305

[7] Continuous high-pressure torsion [J].

Edalati, Kaveh ;

Horita, Zenji .

JOURNAL OF MATERIALS SCIENCE, 2010, 45 (17) :4578-4582

[8] Nanostructuring of a titanium material by high-pressure torsion improves pre-osteoblast attachment [J].

Faghihi, Shahab ;

Zhilyaev, Alexander P. ;

Szpunar, Jerzy A. ;

Azari, Fereshteh ;

Vali, Hojatollah ;

Tabrizian, Maryam .

ADVANCED MATERIALS, 2007, 19 (08) :1069-1073

[9] Fracture toughness investigations of tungsten alloys and SPD tungsten alloys [J].

Faleschini, M. ;

Kreuzer, H. ;

Kiener, D. ;

Pippan, R. .

JOURNAL OF NUCLEAR MATERIALS, 2007, 367 :800-805

[10] Scale up and application of equal-channel angular extrusion for the electronics and aerospace industries [J].

Ferrasse, Stephane ;

Segal, V. M. ;

Alford, Frank ;

Kardokus, Janine ;

Strothers, Susan .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 493 (1-2) :130-140

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