Abstract
The creep behavior of a nickel-base superalloy, Alloy 617, which is considered as a candidate material for the very high temperature gas cooled reactor, was studied. Creep rupture tests were carried out at 800°C, 900°C and 1000°C in static and flowing helium environments as well as in air. Creep rupture life in static helium was longer than that in air, while it was shorter in flowing helium environments. Microstructure observation of the creep tested specimens showed that the shorter creep rupture life in flowing helium was associated with the thicker oxide layer, greater decarburization depth, and deeper internal oxidation happened during the creep tests. The degree of such oxidation damage was quantified for the creep tested specimens and correlated with the creep rupture life in different environments.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
P. Yvon and F. Carré, Structural materials challenges for advanced reactor systems, J. Nuc. Mater., 385 (2009) 217–222.
H. J. Christ, U. Kunecke, K. Meyer and H. G. Sockel, High temperature corrosion of the nickel-base alloy Inconel 617 in helium containing small amounts of impurities, Mater. Sci. Eng., 87 (1987) 161–168.
J. Smialek and G. Meier, Superalloy II, First Ed., Chapter 11, Wiley Interscience, New York, USA (1987).
L. W. Graham, Corrosion of metallic materials in HTRhelium environments, J. Nuc. Mater.,171 (1990) 76–83.
D. Kim, C. Jang and W. Ryu, Oxidation characteristics and oxide layer evolution of Alloy 617 and Haynes 230 at 900°C and 1100 °C, Oxidation of Metals, 71 (2009) 271–293.
C. A. Barrett and C. E. Lowell, Resistance of Ni-Cr-Al alloys to cyclic oxidation at 1100°C and 1200°C, Oxidation of Metals, 11 (1977) 199–223.
D. Kim, I. Sah and C. Jang, Effects of aging in high temperature helium environments on room temperature tensile properties of nickel-base superalloys, Mater. Sci. Eng. A, 528 (2011) 1713–1720.
C. Jang, D. Lee and D. Kim, Oxidation behaviour of an Alloy 617 in very high-temperature air and helium environments, Int. J. Press. Ves. Pip., 85 (2008) 368–377.
B. Huchtemann, The effect of alloy chemistry on creep behaviour in a helium environment with low oxygen partial pressure, Mater. Sci. Eng. A, 121 (1989) 623–626.
D. Kim, I. Sah, D. Kim, W. S. Ryu and C. Jang, High temperature oxidation behaviors of Alloy 617 and Haynes 230 in impure helium environments, Oxidation of Metals, 75 (2011) 103–119.
C. Jang, D. Kim, D. Kim, I. Sah, W. S. Ryu and Y. S. Yoo, Oxidation behaviors of wrought nickel-base superalloys in various high temperature environments, T. of Nonfer. Met. Soc. China, 21 (2011) 1524–1531.
D. Kim, C. Jang and W. S. Ryu, Creep behaviors of Alloy 617 at temperatures between 800 and 1000°C, Proceeding of ICAPP2008, Paper 8060, Anaheim, CA USA (2008).
W. Ren and R. Swindeman, A review on current status of alloys 617 and 230 for GEN IV nuclear reactor internals and heat exchanger, J. Press. Ves. Technol., 131 (2009) 044002.
Y. Hosoi and S. Abe, The effect of helium environment on the creep rupture properties of Inconel 617 at 1000°C, Metall. Trans. A, 6 (1975) 1171–1178.
P. S. Shankar and K. Natesan, Effect of trace impurities in helium on the creep behavior of Alloy 617 for very high temperature reactor applications, J. Nuc. Mater., 366 (2007) 28–36.
E. Boehm, J. M. Bassat, P. Dordor, F. Mauvy, J. C. Grenier and Ph. Stevens, Oxygen diffusion and transport properties in non-stoichiometric Ln2 -xNiO4 + d oxides, Solid State Ionics, 176 (2005) 2717–2725.
L. W. Graham, Corrosion of metallic materials in HTRhelium environments, J. Nuc. Mater., 171 (1990) 76–83.
C. O. Park et al., Diffusion in Solids, KAIST Press, Daejeon (2003).
D. Kim, D. Kim, H. Lee, C. Jang and D. J. Yoon, Corrosion characteristics of Ni-base superalloys in high temperature steam with and without hydrogen, J. Nuc. Mater., 441 (2013) 612–622.
W. G. Kim, J. Y. Park, I. M. W. Ekaputra, S. Hong, S. J. Kim and Y. W. Kim, Comparative study on the hightemperature tensile and creep properties of Alloy 617 base and weld metals, J. Mech. Sci. Technol., 27 (2013) 2331–2340.
W. G. Kim, J. Y. Park, S. J. Kim and M. H. Kim, Improved methodology for determining tensile elastic and plastic strain components of Alloy 617, J. Mech. Sci. Technol., 28 (2014) 3027–3032.
Author information
Authors and Affiliations
Corresponding author
Additional information
Changheui Jang is an Associate Professor at the department of nuclear and quantum engineering at KAIST, Korea. His research interest is the emvironmentally assisted cracking in nuclear power plants. He is also working on the materials for the generation-IV nuclear systems.
Rights and permissions
About this article
Cite this article
Jang, C., Kim, S.H., Sah, I. et al. Creep behavior of Alloy 617 in high temperature air and helium environments–effect of oxidation damage. J Mech Sci Technol 30, 4433–4438 (2016). https://doi.org/10.1007/s12206-016-0907-x
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s12206-016-0907-x