Mechanical testing of anisotropy in ODS steel tubes

4th International Conference Recent Trends in Structural Materials

Špirit, Z.^1,2 ; Chocholouek, M.^1 ; Šíma, M.^1

Centrum Vyzkumu Rez S.r.o., Morseova, EU Plzen

1245/6, Czech Republic^1

Department of Material Science and Technology, University of West Bohemia, Plzen, EU, Czech Republic^2

关键词: Fuel cladding;    Generation IV reactors;    In-situ tensile testing;    Oxide dispersion strengthened;    Small specimen;    Tangential directions;    Thin walled tubes;    Ultimate tensile strength;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/179/1/012065/pdf
DOI  :  10.1088/1757-899X/179/1/012065

来源: IOP

【 摘 要 】

Anisotropy of fuel claddings made from Fe-9Cr and Fe-14Cr ODS (oxide dispersion-strengthened) steel for Generation IV reactors with coolants based on liquid metals was examined. Basic mechanical tests were performed at temperatures of 30 C, 500 C and 625 C on ODS steel thin-walled tubes. Tensile tests were performed in axial and tangential directions in a vacuum to avoid oxidation of the small specimens. A scanning electron microscope with a small in-situ tensile testing device was used to conduct the tests. The result of this paper describes the basic mechanical properties of thin-walled tubes as ultimate tensile strength, yield strength, tensile modulus, etc. depending on the direction of loading.