Synthesis and microstructure of electrodeposited and sputtered nanotwinned face-centered-cubic metals
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Chinese Academy of Sciences (CAS), Beijing (China)
The remarkable properties of nanotwinned (NT) face-centered-cubic (fcc) metals arise directly from twin boundaries, the structures of which can be initially determined by growth twinning during the deposition process. When we understand the synthesis process and its relation to the resulting microstructure, and ultimately to material properties, we realize how key it is to understanding and utilizing these materials. Furthermore, our article presents recent studies on electrodeposition and sputtering methods that produce a high density of nanoscale growth twins in fcc metals. Nanoscale growth twins tend to form spontaneously in monolithic and alloyed fcc metals with lower stacking-fault energies, while engineered approaches are necessary for fcc metals with higher stacking-fault energies. Finally, growth defects and other microstructural features that influence nanotwin behavior and stability are introduced here, and future challenges in fabricating NT materials are highlighted.
- Research Organization:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
- Grant/Contract Number:
- AC04-94AL85000; AC52-06NA25396; AC52-07NA27344; SC0010482; W-7405-ENG-36
- OSTI ID:
- 1304710
- Alternate ID(s):
- OSTI ID: 1341404
- Report Number(s):
- LA-UR--15-26739; SAND--2016-12516J
- Journal Information:
- MRS Bulletin, Journal Name: MRS Bulletin Journal Issue: 04 Vol. 41; ISSN applab; ISSN 0883-7694
- Publisher:
- Materials Research SocietyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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