Materials pp 183-190 | Cite as

Cold Thermal Fatigue of Austenitic Stainless Steel

  • Arata Nishimura
  • Yoshihiko Mukai
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 38)

Abstract

To investigate the cold thermal-fatigue characteristics of an austenitic stainless steel (SUS304), a thermal-cycling test was conducted between ambient and cryogenic temperatures. Test specimens were tubes through which flowed liquid helium or nitrogen for cooling and nitrogen gas for warming; the specimen ends were under thermal-deformation restraint. The center of the pipe contained a thin, narrow test section, 20 mm long, to concentrate the thermal deformation. Large hysteresis loops were obtained in the test section. After 757 cycles, a fatigue crack propagated through the wall of the test section, and nitrogen gas leaked into the vacuum chamber. Cold thermal cracks were observed at a corner of the specimen test section; striations were observed on the fracture surfaces.

Cold thermal-fatigue life was estimated from strain-controlled fatigue life. Cold thermal fatigue is a significant factor in the design of cryogenic structures that will experience thermal cycles, especially those where a stress concentration exists.

Keywords

Fatigue Crack Fatigue Life Test Section Austenitic Stainless Steel Liquid Helium 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    Y. Mukai and A. Nishimura, Mechanical properties of SUS304 stainless steel under cold thermal cycles, Proc., International Conference on Magnet Technology (MT-1l), Elsevier, New York (1990), p. 743.Google Scholar
  2. 2.
    K. Suzuki, J. Fukakura, and T. Mori, Low-cycle fatigue properties of 304L stainless steel under axial-strain control at liquid helium temperature, Zairyo (in Japanese) 34–385 (1985), p. 1206.Google Scholar

Copyright information

© Springer Science+Business Media New York 1992

Authors and Affiliations

  • Arata Nishimura
    • 1
  • Yoshihiko Mukai
    • 2
  1. 1.National Institute for Fusion ScienceChikusa, NagoyaJapan
  2. 2.Faculty of EngineeringOsaka University Yamada-OkaSuita, OsakaJapan

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