[1L01-08] Liquid Metal Engineering in Fusion Reactor

[1L07] Study on applicability of Additive Manufactured steels for liquid metal components on fusion reactors

(1)compatibility of 316L Additive Manufacturing Materials with liquid metal

*Masato Kibayashi¹, Yoshiki Kitamura¹, Masatoshi Kondo¹, Masahiro Onoi², Shotaro Morokoshi², Tomohiro Yonemoto² (1. Tokyo Institute of Technology, 2. MTC)

Keywords:additive manufacturing materials, liquid metals, corrosion, 316L

The additive manufacturing technology can create metal parts which have a complex shape without welding process. In the present study, powder-based electron beam additive manufacturing of 316L austenitic steel (AM316L: Fe-17.3Cr-12.5Ni-2.1Mo) were performed. The microstructure and chemical compositions of AM 316L were metallurgically investigated. The chemical compatibility with liquid metal coolants (liquid tin and liquid lead bismuth) of fusion reactors and fast reactors were also investigated by means of the corrosion tests at 500 ℃ for 250 hours.