TY - JOUR
T1 - Mechanical properties of friction stir welded 11Cr-ferritic/martensitic steel
AU - Yano, Y.
AU - Sato, Yutaka
AU - Sekio, Y.
AU - Ohtsuka, S.
AU - Kaito, T.
AU - Ogawa, R.
AU - Kokawa, Hiroyuki
PY - 2013/1/1
Y1 - 2013/1/1
N2 - Friction stir welding was applied to the wrapper tube materials, 11Cr-ferritic/martensitic steel, designed for fast reactors and defect-free welds were successfully produced. The mechanical and microstructural properties of the friction stir welded steel were subsequently investigated. The hardness values of the stir zone were approximately 550 Hv (5.4 GPa) with minimal dependence on the rotational speed, even though they were much higher than those of the base material. However, tensile strengths and elongations of the stir zones were high at 298 K, compared to those of the base material. The excellent tensile properties are attributable to the fine grain formation during friction stir welding.
AB - Friction stir welding was applied to the wrapper tube materials, 11Cr-ferritic/martensitic steel, designed for fast reactors and defect-free welds were successfully produced. The mechanical and microstructural properties of the friction stir welded steel were subsequently investigated. The hardness values of the stir zone were approximately 550 Hv (5.4 GPa) with minimal dependence on the rotational speed, even though they were much higher than those of the base material. However, tensile strengths and elongations of the stir zones were high at 298 K, compared to those of the base material. The excellent tensile properties are attributable to the fine grain formation during friction stir welding.
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U2 - 10.1016/j.jnucmat.2012.10.038
DO - 10.1016/j.jnucmat.2012.10.038
M3 - Article
AN - SCOPUS:84884905077
VL - 442
JO - Journal of Nuclear Materials
JF - Journal of Nuclear Materials
SN - 0022-3115
IS - 1-3 SUPPL.1
ER -