Abstract
Fusion DEMO reactor requires over 11,000 tons of reduced activation ferritic/martensitic steel. It is necessary to develop the manufacturing technology for fabricating such large-scale steel with appropriate mechanical properties. In this work, we focused fundamental mechanical properties and microstructures of F82H-BA12 heat which was melted using a 20 tons electric arc furnace followed by electroslag remelting process. Its raw material of iron was blast furnace iron, because the production volume of electrolytic iron which has been used in former heats, is limited. After melting and forging, this F82H-BA12 heat was heat-treated in four different conditions to consider their fluctuations and to optimize them, and tensile and Charpy impact tests were then performed. The result of these mechanical properties were comparable to those of former F82H heats less than 5 tons which were melted applying vacuum induction melting.
Original language | English |
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Pages (from-to) | 2068-2071 |
Number of pages | 4 |
Journal | Fusion Engineering and Design |
Volume | 98-99 |
DOIs | |
Publication status | Published - 2015 Oct 1 |
Keywords
- Electric arc furnace
- Fusion DEMO reactor
- Mechanical property
- Microstructure
- Reduced activation ferritic/martensitic steel
ASJC Scopus subject areas
- Civil and Structural Engineering
- Nuclear Energy and Engineering
- Materials Science(all)
- Mechanical Engineering