Micropillar compression response of femtosecond laser-cut single crystal Cu and proton irradiated Cu

SCRIPTA MATERIALIA

卷:170

Article

Gigax, Jonathan G.¹  Vo, Hi²  McCulloch, Quinn¹  Chancey, Matthew³  Wang, Yongqiang³  Maloy, Stuart A.³  Li, Nan¹  Hosemann, Peter^2,4 

[1] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA

[2] Univ Calif Berkeley, Dept Nucl Engn, Berkeley, CA 94720 USA

[3] Los Alamos Natl Lab, MST 8, Los Alamos, NM 87545 USA

[4] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

关键词: Femtosecond laser machining;    Focused ion beam (FIB);    Cu;    Pillar compression;   

DOI  :  10.1016/j.scriptamat.2019.05.004

来源: Elsevier

【 摘 要 】

Femtosecond laser cutting has been used to fabricate micro- and mesoscale specimens for mechanical testing, but the impact on mechanical properties has not been fully evaluated. Micropillars of various sizes were fabricated in a single crystal Cu specimen and Cu irradiated to 1.4 peak displacements per atom using a femtosecond laser cutting system followed by focused ion beam milling to a final dimension of 7 mu m x 7 mu m x 12 mu m. Microcompression testing showed that removing 5 mu m of material from the laser cut surface in both specimens resulted in similar behavior to purely focused ion beam milled micropillars. (C) 2019 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

【 授权许可】

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