@article{ff08795fa1b64a6b8d34ea833f63df88,
title = "Enhanced Coarsening Resistance of Q-phase in Aluminum alloys by the addition of Slow Diffusing Solutes",
abstract = "Here, we design thermally stable microstructures of Al3Cu2Mg9Si7 (Q) precipitates based on commercial aluminum alloy (AS7GU) for automotive applications utilizing low-diffusivity solutes in aluminum. We find that the newly developed alloys show a ~ 20% enhancement in mechanical properties at 300 °C compared to the baseline AS7GU alloy.",
keywords = "Aluminum alloys, Atom-Probe Tomography (APT), Coarsening, Mechanical strength, Q-phase precipitates, Transmission-Electron Microscopy (TEM)",
author = "Kyoungdoc Kim and Andrew Bobel and Baik, {Sung Il} and Mike Walker and Voorhees, {P. W.} and Olson, {G. B.}",
note = "Funding Information: This work was funded by the U.S. Department of Energy under Award Number DE-EE0006082 for the collaborative project between Northwestern University, General Motors, and QuesTek Innovations LLC. TEM and APT measurements were performed at the NUANCE and NUCAPT at Northwestern University. Mechanical testes were performed at General Motors. We thank Prof. Seidman and Prof. Dieter Isheim for supporting the APT experiments. The local-electrode atom-probe tomograph at NUCAPT was acquired and upgraded with equipment grants from the MRI program of the National Science Foundation (grant number DMR-0420532) and the DURIP program of the Office of Naval Research (grant numbers N00014-0400798, N00014-0610539, N00014-0910781, N00014-1712870). NUCAPT and NUANCE are Research Facilities at the Materials Research Center of Northwestern University and received support through the National Science Foundation's MRSEC program (grant number NSF DMR-1720139) and from the Soft and Hybrid Nanotechnology Experimental (SHyNE) Resource (NSFECCS-1542205). Funding Information: This work was funded by the U.S. Department of Energy under Award Number DE-EE0006082 for the collaborative project between Northwestern University, General Motors, and QuesTek Innovations LLC. TEM and APT measurements were performed at the NUANCE and NUCAPT at Northwestern University. Mechanical testes were performed at General Motors. We thank Prof. Seidman and Prof. Dieter Isheim for supporting the APT experiments. The local-electrode atom-probe tomograph at NUCAPT was acquired and upgraded with equipment grants from the MRI program of the National Science Foundation (grant number DMR-0420532 ) and the DURIP program of the Office of Naval Research (grant numbers N00014-0400798 , N00014-0610539 , N00014-0910781 , N00014-1712870 ). NUCAPT and NUANCE are Research Facilities at the Materials Research Center of Northwestern University and received support through the National Science Foundation's MRSEC program (grant number NSF DMR-1720139 ) and from the Soft and Hybrid Nanotechnology Experimental (SHyNE) Resource ( NSFECCS-1542205 ). Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",
year = "2018",
month = sep,
day = "26",
doi = "10.1016/j.msea.2018.08.059",
language = "English (US)",
volume = "735",
pages = "318--323",
journal = "Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing",
issn = "0921-5093",
publisher = "Elsevier BV",
}