DataVXAdvanced Engineering MaterialsPaper
journal article·2014-08

Grain Boundary Phenomena in an Ultrafine‐Grained Al–Zn Alloy with Improved Mechanical Behavior for Micro‐Devices

Nguyen Q. Chinh, Ruslan Z. Valiev, Xavier Sauvage, Gábor Varga, Károly Havancsák, Megumi Kawasaki, Boris B. Straumal, Terence G. Langdon

Advanced Engineering Materials· Volume 16· Issue 8
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Source abstract

Abstract

Abstracts The microstructural and mechanical properties of an ultrafine‐grained (UFG) Al–Zn alloy processed by high‐pressure torsion (HPT) are investigated using depth‐sensing indentations, focused ion beam, scanning electron microscopy and scanning transmission electron microscopy. Emphasis is placed on the microstructure and the effects of grain boundaries at room temperature. The experiments show the formation of Zn‐rich layers at the Al/Al grain boundaries that enhance the role of grain boundary sliding leading to unique plastic behavior in this UFG material. The occurrence of significant grain boundary sliding at room temperature is demonstrated by deforming micro‐pillars. Our results illustrate a potential for using UFG materials as advanced functional materials in electronic micro‐devices.
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Research context

Metals & alloys

OpenAlex topics: Microstructure and mechanical properties · Aluminum Alloys Composites Properties · Metal and Thin Film Mechanics

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Materials Physics Eötvös Loránd University 1117 Budapest Pázmány Péter sétány 1/A. Hungary

Institute of Physics of Advanced Materials Ufa State Aviation Technical University 12K. Marx str. Ufa 450000 Russia

Laboratory for Mechanics of Bulk Nanostructured Materials Saint Petersburg State University Universitetsky pr. 28 198504 Peterhof Saint Petersburg Russia

Université de Rouen Groupe de Physique des Matériaux UMR CNRS 6634 BP 12 76801 Saint Etienne du Rouvray France

Division of Materials Science and Engineering Hanyang University 17 Haengdang‐Dong Seongdong‐Gu Seoul 133‐791 South Korea

Departments of Aerospace & Mechanical Engineering and Materials Science University of Southern California Los Angeles CA 90089‐1453 USA

Moscow Institute of Physics and Technology (State University) Institutskii per. 9 141700 Dolgoprudny Russia

Laboratory of Hybrid Nanostructured Materials National University of Science and Technology «MISIS» Leninskii prosp. 4 119049 Moscow Russia

Materials Research Group, Faculty of Engineering and the Environment University of Southampton Southampton SO17 1BJ UK

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