Mapping strain fields induced in Zr-based bulk metallic glasses during in-situ nanoindentation by X-ray nanodiffraction

被引：12

作者：

Gamcova, J. ^{[1
,6
]}

Mohanty, G. ^{[2
]}

Michalik, S. ^{[3
,7
]}

Wehrs, J. ^{[2
]}

Bednarcik, J. ^{[1
]}

Krywka, C. ^{[4
]}

Breguet, J. M. ^{[2
,5
]}

Michler, J. ^{[2
]}

Franz, H. ^{[1
]}

机构：

[1] DESY, Notkestr 85, D-22547 Hamburg, Germany

[2] Empa, Lab Mech Mat & Nanostruct, Swiss Fed Labs Mat Sci & Technol, Feuerwerkerstr 39, CH-3602 Thun, Switzerland

[3] ASCR, Inst Phys, Na Slovance 2, Prague 18221, Czech Republic

[4] HZG, Inst Werkstoffforsch, Notkestr 85, D-22547 Hamburg, Germany

[5] Alemnis GmbH, Feuerwerkerstr 39, CH-3602 Thun, Switzerland

[6] Safarik Univ, Dept Condensed Matter Phys, Pk Angelinum 9, Kosice, Slovakia

[7] Diamond Light Source Ltd, Harwell Sci & Innovat Campus, Didcot OX11 0DE, Oxon, England

来源：

APPLIED PHYSICS LETTERS | 2016年 / 108卷 / 03期

关键词：

DEFORMATION; INDENTATION; BEHAVIOR; FLOW;

D O I：

10.1063/1.4939981

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A pioneer in-situ synchrotron X-ray nanodiffraction approach for characterization and visualization of strain fields induced by nanoindentation in amorphous materials is introduced. In-situ nanoindentation experiments were performed in transmission mode using a monochromatic and highly focused sub-micron X-ray beam on 40 mu m thick Zr-based bulk metallic glass under two loading conditions. Spatially resolved X-ray diffraction scans in the deformed volume of Zr-based bulk metallic glass covering an area of 40 x 40 mu m(2) beneath the pyramidal indenter revealed two-dimensional map of elastic strains. The largest value of compressive elastic strain calculated from diffraction data at 1 N load was -0.65%. The region of high elastic compressive strains (<-0.3%) is located beneath the indenter tip and has radius of 7 mu m. (C) 2016 AIP Publishing LLC.

引用

页数：4

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