Micropillar compression response of femtosecond laser-cut single crystal Cu and proton irradiated Cu. (September 2019)

• Record Type: Journal Article
• Authors: Gigax, Jonathan G.; Vo, Hi; McCulloch, Quinn; Chancey, Matthew; Wang, Yongqiang; Maloy, Stuart A.; Li, Nan; Hosemann, Peter
• Is Part Of: Scripta materialia. Number 170(2019)
• Page Start: 145
• Page End: 149
• Publication Date: 2019-09
• Subjects: Femtosecond laser machining -- Focused ion beam (FIB) -- Cu -- Pillar compression; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2019.05.004
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract: 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 μm × 7 μm × 12 μm. Microcompression testing showed that removing 5 μm of material from the laser cut surface in both specimens resulted in similar behavior to purely focused ion beam milled micropillars. Graphical abstract: Unlabelled Image