Fabrication and in situ compression testing of Mg micropillars with a nontrivial cross section: influence of micropillar geometry on mechanical properties

0473998 - FZÚ 2018 RIV CH eng J - Journal Article
Bočan, Jiří - Tsurekawa, S. - Jäger, Aleš
Fabrication and in situ compression testing of Mg micropillars with a nontrivial cross section: influence of micropillar geometry on mechanical properties.
Materials Science and Engineering A Structural Materials Properties Microstructure and Processing. Roč. 687, Feb (2017), s. 337-342. ISSN 0921-5093. E-ISSN 1873-4936
R&D Projects: GA ČR GBP108/12/G043
Institutional support: RVO:68378271
Keywords : electron microscopy * nanoindentation * magnesium alloys * plasticity * micromachining
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 3.414, year: 2017

Micropillars with a nontrivial cross-sectional shape but constant cross-sectional area were fabricated from a pure magnesium single crystal with (0001) orientation by a focused gallium ion beam using a modified annular milling method. The basic mechanical properties (compressive modulus, strength at different plastic strain levels and hardening exponent) of those structures were determined under compression by means of in situ nanoindentation in scanning electron microscope and correlated by the micropillar cross-sectional circumference.
Permanent Link: http://hdl.handle.net/11104/0271089