Mechanical Characterizations of Structural Materials for Large Superconducting Magnets at Low Temperatures

In the past decades, China was involved in several large superconducting magnet tasks. These magnets require cryogenic structural materials as reinforcement. Within this context, mechanical characterization of these materials at cryogenic temperature obtained with specimens from readily available components is a prerequisite for a safe engineering design. In China, almost all cryogenic mechanical measurements of structural materials dealing with large superconducting magnets have been conducted at the Center of Cryogenic Materials and Applied Superconductivity, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences. This paper shows the recent mechanical measurement results with toroidal-field coils, poloidal-field coils, correction coils, feeders, magnet supports, a full-size conductor, and insulation materials for the International Thermonuclear Experimental Reactor task.