We uniaxially and shocklessly compressed an additively manufactured aluminum alloy, laser powder bed fusion (LPBF) AlSi10Mg, to peak stresses ranging from 4.4 to 14.8 GPa at peak strain rates on the order of [Formula: see text] via a series of magnetic loading experiments to measure the principal isentrope, yield strength, and shear modulus as a function of material orientation and applied stress. We did not observe significant anisotropy in any of the measured quantities. We found that the principal isentrope, within the uncertainty and up to our peak stress, overlaps the material’s Hugoniot. We measured yield strengths and shear moduli ranging from 0.28 to 0.81 GPa and 36 to 52 GPa, respectively. Our results indicate that LPBF AlSi10Mg behaves similarly to wrought Al alloys under quasi-isentropic compression.
Brown, Nathan P., Specht, Paul E., & Brown, Justin L. (2022). Quasi-isentropic compression of an additively manufactured aluminum alloy to 14.8 GPa. Journal of Applied Physics, 132(22). https://doi.org/10.1063/5.0127989
Brown, Nathan P., Specht, Paul E., and Brown, Justin L., "Quasi-isentropic compression of an additively manufactured aluminum alloy to 14.8 GPa," Journal of Applied Physics 132, no. 22 (2022), https://doi.org/10.1063/5.0127989
@article{osti_1903070,
author = {Brown, Nathan P. and Specht, Paul E. and Brown, Justin L.},
title = {Quasi-isentropic compression of an additively manufactured aluminum alloy to 14.8 GPa},
annote = {We uniaxially and shocklessly compressed an additively manufactured aluminum alloy, laser powder bed fusion (LPBF) AlSi10Mg, to peak stresses ranging from 4.4 to 14.8 GPa at peak strain rates on the order of [Formula: see text] via a series of magnetic loading experiments to measure the principal isentrope, yield strength, and shear modulus as a function of material orientation and applied stress. We did not observe significant anisotropy in any of the measured quantities. We found that the principal isentrope, within the uncertainty and up to our peak stress, overlaps the material’s Hugoniot. We measured yield strengths and shear moduli ranging from 0.28 to 0.81 GPa and 36 to 52 GPa, respectively. Our results indicate that LPBF AlSi10Mg behaves similarly to wrought Al alloys under quasi-isentropic compression.},
doi = {10.1063/5.0127989},
url = {https://www.osti.gov/biblio/1903070},
journal = {Journal of Applied Physics},
issn = {ISSN 0021-8979},
number = {22},
volume = {132},
place = {United States},
publisher = {American Institute of Physics},
year = {2022},
month = {12}}
SHOCK COMPRESSION OF CONDENSED MATTER - 2019: Proceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter, AIP Conference Proceedingshttps://doi.org/10.1063/12.0001090