Nanostructured Composite Alloys for Extreme Environments
- Univ. of New Mexico, Albuquerque, NM (United States); University of New Mexico
- Univ. of North Texas, Denton, TX (United States)
- Univ. of New Mexico, Albuquerque, NM (United States)
- Idaho National Lab. (INL), Idaho Falls, ID (United States)
- Univ. of Minnesota, Minneapolis, MN (United States)
Accumulative Roll Bonding was used to process nanolayered Cu/Nb and Zr/Nb composites with varying individual layer thickness. Mechanical tests show remarkable strength as the average layer thickness decreases. Relatively high strength is preserved even at elevated temperatures. Despite differences in texture between rolling paths (longitudinally rolled-RL and cross rolled-CR) Cu/Nb, flow stresses between the resultant materials were similar. In addition, thermal conductivity does not change significantly as the interface density increases. The alloys show remarkable resistance to irradiation damage at very high doses due to stability of the interfaces. The results on Zr/Nb indicate that liquid phase chemistry resulting from thermal spikes play an important role and should be taken into account when designing alloys for extreme environments.
- Research Organization:
- Univ. of New Mexico, Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE Office of Nuclear Energy (NE), Nuclear Energy University Program (NEUP)
- DOE Contract Number:
- NE0008656
- OSTI ID:
- 1877543
- Report Number(s):
- DOE-UNM-NE0008656-1
- Country of Publication:
- United States
- Language:
- English
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