Abstract
A newly developed micro-kolsy bar system at the Army Research Laboratory has made it possible to test materials in compression at strain rates greater than 104 s−1. Opening up a new realm for testing of materials at high strain rates. In order to reach these high strain rates, sample diameters must be on the order of tens to hundreds of microns. Fabrication of these micro-samples is done using a femtosecond laser, since the ultrashort pulse width of this laser does not produce any appreciable damage layer. The high strain rate (103–105 s−1) behavior and resulting microstructure of electrodeposited nickel was investigated using this micro-kolsy bar system. The microstructure of the as-deposited and tested samples was examined with electron backscatter diffraction and transmission electron microscopy. Tested samples show evidence of dynamic recrystallization and formation of a large number fraction of high angle, Σ3 boundaries.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Kumar, K.S., Suresh, S., Chisholm, M.F., Horton, J.A., Wang, P.: Deformation of electrodeposited nanocrystalline nickel. Acta Mater. 51, 387–405 (2003)
Casem, D.T., Grunschel, S.E., Schuster, B.E.: Normal and transverse displacement interferometers applied to small diameter Kolsky bars. Exp. Mech. 52(2), 173–184 (2012)
Casem, D.T., Ligda, J.P., Schuster, B.E., Mims, S.: High-rate mechanical response of aluminum using miniature Kolsky bar techniques. Dyn. Behav. Mater. 1., Springer International Publishing, 147–153 (2018)
Schüler, K., Philippi, B., Weinmann, M., Marx, V.M., Vehoff, H.: Effects of processing on texture, internal stresses and mechanical properties during the pulsed electrodeposition of nanocrystalline and ultrafine-grained nickel. Acta Mater. 61(11), 3945–3955 (2013)
Chichkov, B.N., Momma, C., Nolte, S., von Alvensleben, F., Tunnermann, A.: Femtosecond, picosecond and nanosecond laser ablation of solids. App. Phys. A. 63, 109–115 (1996)
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2019 The Society for Experimental Mechanics, Inc.
About this paper
Cite this paper
Ligda, J.P., Casem, D., Murdoch, H. (2019). Microstructure Characterization of Electrodeposited Nickel Tested at High Strain Rates. In: Kimberley, J., Lamberson, L., Mates, S. (eds) Dynamic Behavior of Materials, Volume 1. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, Cham. https://doi.org/10.1007/978-3-319-95089-1_20
Download citation
DOI: https://doi.org/10.1007/978-3-319-95089-1_20
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-95088-4
Online ISBN: 978-3-319-95089-1
eBook Packages: EngineeringEngineering (R0)