Self-welding behavior of various materials in a sodium environment (III) Effect of temperature on self-weldability
Mizobuchi, Shotaro*; Kano, Shigeki; Nakayama, Koichi; Namekawa, Masaru; not registered; Atsumo, Hideo
In this report, the effect of temperature on self-weldability of materials with various contact areas was investigated in 650C and 700C sodium, while investigated in 600C sodium in preceding reports (SN941 73-12 and N941 74-18). The following results were obtained; (1)The self-welding force of the combination of SUS316 vs. SUS316 was approximately 1100kg at all of test temperatures (600C, 650C and 700C). (2)The self-welding force of the combination of SUS316 vs. SUS316 was under the influence of the apparent contact area up to 650C, but was not at 700C. (3)The self-welding force of the combination of SUS316 vs. SUS420 came up to 3850kg and the metal transfer of more than 20m was observed after tensile test. Also, the self-selding behavior of this combination mainly results from the interdiffusion of alloy elements at the boundary layer. self-weldability and 100% of chrome carbide did not indicate the Self-weldability.