Nanotwin formation in Ni-Mo-W alloys deposited by dc magnetron sputtering
Abstract
Nanotwinned metals and alloys have an attractive suite of properties, but the formation of the underlying nanostructure is generally dependent on the alloy chemistry and processing conditions. This study was undertaken to investigate the effect of deposition rate on nanotwin formation in sputter deposited Ni84Mo11W5 that possess ultrahigh strength and stability. Specifically, deposition rates of 0.5-2.3 nm/s were examined and the grain size, texture, twin spacing and hardness were characterized. Minimal variations in the underlying nanostructure and attendant hardness were observed, elucidating a wide processing window and the importance of chemistry on the formation of nanotwins in this alloy.
- Authors:
-
- Johns Hopkins Univ., Baltimore, MD (United States)
- Univ. of Illinois at Urbana-Champaign, IL (United States)
- Publication Date:
- Research Org.:
- Johns Hopkins Univ., Baltimore, MD (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division; USDOE
- OSTI Identifier:
- 1618419
- Alternate Identifier(s):
- OSTI ID: 1779994
- Grant/Contract Number:
- FG02-07ER46437
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Scripta Materialia
- Additional Journal Information:
- Journal Volume: 186; Journal ID: ISSN 1359-6462
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; Sputtering; Nanoindentation; Hardness; Nanotwins; Deposition Rate
Citation Formats
Valentino, Gianna M., Shetty, Pralav P., Chauhan, Ankur, Krogstad, Jessica A., Weihs, Timothy P., and Hemker, Kevin J. Nanotwin formation in Ni-Mo-W alloys deposited by dc magnetron sputtering. United States: N. p., 2020.
Web. doi:10.1016/j.scriptamat.2020.05.031.
Valentino, Gianna M., Shetty, Pralav P., Chauhan, Ankur, Krogstad, Jessica A., Weihs, Timothy P., & Hemker, Kevin J. Nanotwin formation in Ni-Mo-W alloys deposited by dc magnetron sputtering. United States. https://doi.org/10.1016/j.scriptamat.2020.05.031
Valentino, Gianna M., Shetty, Pralav P., Chauhan, Ankur, Krogstad, Jessica A., Weihs, Timothy P., and Hemker, Kevin J. Fri .
"Nanotwin formation in Ni-Mo-W alloys deposited by dc magnetron sputtering". United States. https://doi.org/10.1016/j.scriptamat.2020.05.031. https://www.osti.gov/servlets/purl/1618419.
@article{osti_1618419,
title = {Nanotwin formation in Ni-Mo-W alloys deposited by dc magnetron sputtering},
author = {Valentino, Gianna M. and Shetty, Pralav P. and Chauhan, Ankur and Krogstad, Jessica A. and Weihs, Timothy P. and Hemker, Kevin J.},
abstractNote = {Nanotwinned metals and alloys have an attractive suite of properties, but the formation of the underlying nanostructure is generally dependent on the alloy chemistry and processing conditions. This study was undertaken to investigate the effect of deposition rate on nanotwin formation in sputter deposited Ni84Mo11W5 that possess ultrahigh strength and stability. Specifically, deposition rates of 0.5-2.3 nm/s were examined and the grain size, texture, twin spacing and hardness were characterized. Minimal variations in the underlying nanostructure and attendant hardness were observed, elucidating a wide processing window and the importance of chemistry on the formation of nanotwins in this alloy.},
doi = {10.1016/j.scriptamat.2020.05.031},
journal = {Scripta Materialia},
number = ,
volume = 186,
place = {United States},
year = {Fri Jun 05 00:00:00 EDT 2020},
month = {Fri Jun 05 00:00:00 EDT 2020}
}
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