Journal
ACTA MATERIALIA
Volume 114, Issue -, Pages 154-163Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.actamat.2016.05.030
Keywords
Sputter; Multilayer; Strengthening; Nanoindentation; Stacking fault energy
Funding
- NSF-DMR-Metallic Materials and Nanostructures Program [1304101]
- NSF-CMMI [1161978]
- DoE-OBES [DE-SC0010482]
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [1304101, 1643915] Funding Source: National Science Foundation
- Directorate For Engineering
- Div Of Civil, Mechanical, & Manufact Inn [1161978] Funding Source: National Science Foundation
- U.S. Department of Energy (DOE) [DE-SC0010482] Funding Source: U.S. Department of Energy (DOE)
Ask authors/readers for more resources
Nanostructured metallic multilayers have attracted substantial attention as they often possess high mechanical strength. Here we report on the microstructure and mechanical strength of sputtered Ag/Fe multilayers with individual layer thicknesses (h) varying from 1 to 200 nm. Phase transformation of Fe from body-centered-cubic (bcc) to face-centered-cubic (fcc) structure occurs when h < 5 nm. Nanotwins form in fine Ag/Fe multilayers. Although modulus mismatch is similar between Ag/Fe and Ag/Ni multilayers, the peak hardnesses of Ag/Fe multilayers is much lower than that of Ag/Ni system. Comparison of mechanical strength of several Ag based multilayers reveals that this drastic difference may arise from chemical stress due to the difference in stacking fault energy of the layer constituents. (C) 2016 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available
Share Paper
