Cryogenic Mechanical Properties and Hydrogen Embrittlement of SAF2205

  • Y. Y. Li
  • A. C. Wang
  • B. Liao
  • K. Yang
Part of the Advances in Cryogenic Engineering Materials book series (ACRE, volume 42)


Mechanical properties and Internal Hydrogen Embrittlement (IHE) of an α+γ duplex stainless steel have been conducted over the temperature range of 293–77K. The results showed that by lowering of testing temperature, the strength of the alloy increased obviously, but the elongation increased to 153K and decreased at lower temperature, while the area reduction decreased a little; at the same time, the H-induced loss of area reduction and elongation got the highest values at about 223K and decreased to almost zero at 77K. Analyses on microstructure indicated that the formation of martensite could occur during deformation and /or decreasing of temperature, which would result in some increase in strength and the temperature dependence of ductility of the alloy at low temperature. However, the IHE behaviour of the alloy was found being dependant on both the formation of martensite and the diffusive ability of hydrogen.


Austenitic Stainless Steel Duplex Stainless Steel Liquid Nitrogen Temperature Tensile Deformation Ferritic Steel 
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.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    A.W. Thompson, Stainless steels in high-pressure hydrogen, in: “Handbook of Stainless Steels”, D. Peckner and I.M. Bernstein eds., McGraw Hill, New York (1977), p.46–1.Google Scholar
  2. 2.
    W. Zheng and D. Hardie, The effect of hydrogen on the fracture of a commercial duplex stainless steel, Corrosion Sci., 32:23 (1991).CrossRefGoogle Scholar
  3. 3.
    A.W. Thompson, Met. Prog., 110:30 (1976).Google Scholar
  4. 4.
    J.H. He, X. Y. Tang and N.P. Chen, Diffusion of hydrogen in (α+γ) duplex stainless steel, Acta Metall. Sinica, (Chinese edition), 25:A37 (1989).Google Scholar
  5. 5.
    S.M. Wilhelm, R.D. Kano, Effect of heat treatment and microstructure on the corrosion and SCC of duplex stainless steel in H2S/Cl- environments, Corrosion, 40:431 (1984).CrossRefGoogle Scholar
  6. 6.
    Internal report, A new way to develop superalloys, Institute of Metal Research, Academia Sinica, 1985.Google Scholar
  7. 7.
    R.C. Dorward, Cryogenic toughness of Al-Cu-Li alloy AA 2090, Scr. Metall., 20:1379, (1986).CrossRefGoogle Scholar
  8. 8.
    X.J. Jiang, Ph.D. Thesis, Institute of Metal Research, Academia Sinica, 1993.Google Scholar
  9. 9.
    Z.S. Liu, Master degree dissertation, Institute of Metal Research, Academia Sinica, 1993.Google Scholar
  10. 10.
    J.H. He, X.Y. Tang and N.P. Chen, Hydrogen induced cracking in a ferrite-austenite duplex stainless steel, Acta Metall. Sinica, (Chinese edition), 25:A42 (1989).Google Scholar
  11. 11.
    J.K. Tien, A.W. Thompson, I.M. Bernstein and R.J. Richards, Hydrogen transport by dislocations, Metall. Trans., 7A:821 (1976).CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1996

Authors and Affiliations

  • Y. Y. Li
    • 1
  • A. C. Wang
    • 1
  • B. Liao
    • 2
  • K. Yang
    • 1
  1. 1.Institute of Metal ResearchAcademia SinicaShenyangP.R. China
  2. 2.Yanshan UniversityQinhuangdaoP.R. China

Personalised recommendations