Journal
SCRIPTA MATERIALIA
Volume 178, Issue -, Pages 24-28Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2019.10.045
Keywords
Copper-rich nanoclusters; Dissolution; Performance regeneration; Electropulsing
Categories
Funding
- National Natural Science Foundation of China [51874023, 51601011, U1860206]
- Fundamental Research Funds for the Central Universities [FRF-TP-18-003131]
- Recruitment Program of Global Experts
- Nuclear Power Technology Innovation Center at National Defense Science and Technology Industry
Ask authors/readers for more resources
Precipitation of copper-rich nanoclusters is the chief culprit, which is the cause of embrittlement of reactor pressure vessels. Here we provide a real sense of in situ pathway to investigate ultrafast performance regeneration under electropulsing. We find that the pulsed electric current can reduce the dissolution temperature of nanoclusters. The number of nanoclusters can be decreased drastically at relatively low temperature (430 degrees C), and the process takes only 3 min. Meanwhile, the toughness recovered more than 70%. The homogenization annealing treatment without pulsed electric current (430 degrees C/3 min) shows that the microstructure and mechanical properties do not change substantially. (C) 2019 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