Slip in directionally solidified Mo-alloy micropillars – Part I: Nominally dislocation-free pillars

• Published in: Acta materialia Vol. 60; no. 11; pp. 4604 - 4613
• Main Authors: Zimmermann, J., Van Swygenhoven, H., Marichal, C., Van Petegem, S., Borca, C., Bartova, B., Oveisi, E., Hebert, C.
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01-06-2012; Elsevier
• Subjects: Alloy systems; Applied sciences; Atom probe analysis; Burgers vector; Directional solidification; Dislocation; Exact sciences and technology; Metals. Metallurgy; Microcompression; Microstructure; Molybdenum base alloys; Pillars; Slip; Three dimensional; Three-dimensional atom probe; X-ray diffraction; X-ray diffraction; Three-dimensional atom probe; Microstructure; Dislocation; Microcompression; Directional solidification; Slip; X ray diffraction; Atom probe
• ISSN: 1359-6454; 1873-2453
• DOI: 10.1016/j.actamat.2012.02.043

In situ Laue analysis during microcompression reveals plasticity in [001]-oriented, directionally solidified Mo alloy pillars to start with slip on the {112}〈111〉 system having the highest Schmid factor followed by slip on the (110) plane containing the same Burgers vector. The results are interpreted in terms of the microstructure analyzed by scanning transmission electron microscopy and 3-D atom probe.