Abstract
The 4 K fatigue life curves on the mechanical failure of domestic structural materials for superconducting magnet applications, such as type 304L and type 316L stainless steels, are obtained under axial strain control. These curves are compared with ones at 300 K and 77 K, and with the literature data on foreign materials. Then, the paper focuses on the permeability increase with cyclic straining, due to martensitic transformation. The 4 K fatigue life curves on the permeability limit of type 304L and type 316L, which are the metastable austenitic stainless steels, are obtained. The fatigue tests on the permeability at 300 K and 77 K are also conducted for comparison. Finally, a cryogenic fatigue design criterion to prevent the mechanical failure and the permeability increase of type 304L and type 316L is proposed referring to the approach in the AS ME Boiler and Pressure Vessel Code Section III.
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© 1987 Elsevier Applied Science Publishers Ltd
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Fukakura, J., Suzuki, K., Kashiwaya, H. (1987). Cryogenic Fatigue Design of Austenitic Stainless Steels for Superconducting Magnet Applications. In: Iida, K., McEvily, A.J. (eds) Advanced Materials for Severe Service Applications. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-3445-0_17
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DOI: https://doi.org/10.1007/978-94-009-3445-0_17
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-8042-2
Online ISBN: 978-94-009-3445-0
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