In situ observation of defect annihilation in Kr ion-irradiated bulk Fe/amorphous-Fe 2 Zr nanocomposite alloy
- China Univ. of Petroleum-Beijing, Beijing (China); Texas A&M Univ., College Station, TX (United States)
- Texas A&M Univ., College Station, TX (United States)
- Argonne National Lab. (ANL), Argonne, IL (United States)
Enhanced irradiation tolerance in crystalline multilayers has received significant attention lately. However, little is known on the irradiation response of crystal/amorphous nanolayers. We report on in situ Kr ion irradiation studies of a bulk Fe96Zr4 nanocomposite alloy. Irradiation resulted in amorphization of Fe2Zr and formed crystal/amorphous nanolayers. α-Fe layers exhibited drastically lower defect density and size than those in large α-Fe grains. In situ video revealed that mobile dislocation loops in α-Fe layers were confined by the crystal/amorphous interfaces and kept migrating to annihilate other defects. This study provides new insights on the design of irradiation-tolerant crystal/amorphous nanocomposites.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States); Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- AC02-06CH11357; AC04-94AL85000
- OSTI ID:
- 1215515
- Alternate ID(s):
- OSTI ID: 1221665
- Journal Information:
- Materials Research Letters, Vol. 3, Issue 1; ISSN 2166-3831
- Publisher:
- Taylor and FrancisCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
A Review on the Radiation Response of Nanoporous Metallic Materials
|
journal | August 2018 |
Recent Studies on the Microstructural Response of Nanotwinned Metals to In Situ Heavy Ion Irradiation
|
journal | November 2019 |
Mechanical Response of He-Implanted Amorphous SiOC/Crystalline Fe Nanolaminates
|
journal | March 2019 |
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