International Journal of Materials Science and Applications
Volume 6, Issue 4, July 2017, Pages: 178-189
Received: May 26, 2017;
Accepted: Jun. 8, 2017;
Published: Jun. 29, 2017
Views 2864 Downloads 168
Yoshiki Shioda, Research Laboratory, Materials Department, IHI Corporation, Yokohama, Japan
Kyohei Nomura, Research Laboratory, Materials Department, IHI Corporation, Yokohama, Japan
Keiji Kubushiro, Research Laboratory, Materials Department, IHI Corporation, Yokohama, Japan
Yoshinori Murata, Department of Materials, Physics and Energy Engineering, Nagoya University, Nagoya, Japan
The effect of cold working on the creep rupture strength of Alloy617 was investigated. The creep rupture tests were conducted at temperatures of 700 to 800°C, under stresses from 100 to 350 MPa. At high stress conditions, the creep rupture time of the non-pre-strained samples are similar to those of the pre-strained samples. On the other hand, at low stress conditions, the creep rupture time of the pre-strained samples are longer than those of the non-pre-strained samples. The amount of precipitates near the grain boundaries in the pre-strained sample is higher than that in the non-pre-strained sample. Weak regions such as PFZ and recrystallization grains in the non-pre-strained sample are formed in the early stage of creep compared to the pre-strained sample. At low stress conditions, the precipitates near the grain boundaries in the pre-strained sample play an effective role to pin the grain boundaries and they delay the formation of the weak regions resulting in extension to the creep rupture time.
Effect of Cold Working on Creep Rupture Strength of Alloy617, International Journal of Materials Science and Applications.
Vol. 6, No. 4,
2017, pp. 178-189.
H. Umaki, I. Kajigaya, T. Kunihiro, T. Totsuka, M. Nakashiro and T. Kume, Application of Large Diameter Seam Welded Pipes and Header of Super 9Cr Steel for 700MW Coal-Fired Boiler with 593°C Reheat Steam Temperature, Ishikawajima-Harima Engineering Review. 31 (1991) 339-345 (in Japanese).
S. J. Patel, J. J. DeBarbadillo, B. A. Baker, R. D. Gollihue, Nickel Base Superalloys for Next Generation Coal Fired AUSC Power Plants, Procedia Engineering. 55 (2013) 246-252.
R. Viswanathan, J. F. Henry, J. Tanzosh, G. Stanko, J. Shingledecker, B. Vitalis and R. Purgert, U.S. Program on Materials Technology for Ultra-Supercritical Coal Power Plants, Journal of Materials Engineering and Performance. 14, (2005) 281-292.
J. P. Shingledecker, Testing and Analysis of Full-Scale Creep-Rupture Experiments on Inconel Alloy 740 Cold-Formed Tubing, Journal of Materials Engineering and Performance. 22 (2013) 454-462.
M. Fukuda, Advanced USC, Journal of the Thermal and Nuclear Power. 62 (2011) 731-740 (in Japanese).
F. Abe, Research and Development of Heat-Resistant Materials for Advanced USC Power Plants with Steam Temperatures of 700°C and Above, Engineering. 1 (2015) 211-224.
J. Klower, R. U. Husemann, M. Bader, Development of Nickel Alloys Based on Alloy617 for Components in 700°C Power Plants, Procedia Engineering. 55 (2013) 226-231.
K. Kubusiro, K. Nomura, H. Nakagawa, Y. Ohkuma and K. Muroki, Development of fabrication technology for the A-USC boiler, Proceedings of the International Conference on Power Engineering-15 (2015).
W. Ren and R. Swimdeman, A Review Paper on Aging Effects in Alloy 617 for Gen IV Nuclear Reactor Applications, Transactions of the ASME. 131 (2009).
H. Nickel, Characterization of metallic and ceramic high temperature materials for energy systems by means of atomic spectroscopy, Pure & Appl. Chem. 65 (1993) 2481-2500.
Q. Wu, H. Song, R. W. Swindeman, J. P. Shingledecker, and V. K. Vasudevan, Microstructure of Long-Term Aged IN617 Ni-Base Superalloy, Metallurgical and Materials Transactions A. 39A (2008) 2569-2585.
E. Gariboldi, M. Cabibbob, S. Spigarellib and D. Ripamonti, Investigation on precipitation phenomena of Ni-22Cr-12Co-9Mo alloy aged and crept at high temperature, International Journal of Pressure Vessels and Piping. 85 (2008) 63-71.
K. Okada, Y. Semba, S. Ishikawa and M. Yoshizawa, Effect of cold working on creep properties of a 23Cr-45Ni-7W alloy, Proceedings of the 163rd ISIJ Meeting. 25 (2012) 405 (in Japanese).
K. Kubushiro, Y. Shioda and K. Nomura, Effect of Pre-strain on the Creep Strength of Ni-Based Alloys for A-USC Boilers, Trans Indian Inst Met. DOI 10.1007/s12666-016-0919-3.
A. Iseda, M. Kubota, Y. Hayase, S. Yamamoto and K. Yoshikawa, Application and Properties of Modified 9Cr-1Mo Steel Tubes and Pipe for Fossil-fired Power Plants, The Sumitomo Search. 36 (1988) (in Japanese).
S. Caminada, G. Cumino, L. Cipolla and A. Di Gianfrancesco, Cold bending of advanced ferritic steels: ASTM grades T23, T91, T92, International Journal of Pressure Vessels and Piping. 86 (2009) 853-861.
Y. Kurata and H. Nakajima, Creep properties of 20% cold-worked Hastelloy XR, Journal of Nuclear Materials. 228 (1996) 176-183.
K. Mino, A. Ohtomo and Y. Saiga, Effect of Grain Boundary Migration and Recrystallization on the Creep Strength of Inconel 617, Tetsu-to-Hagane. 63 (1977) 106-114 (in Japanese).
S. Chomette, J. M. Gentzbittel and B. Viguier, Creep behaviour of as received, aged and cold worked INCONEL 617 at 850°C and 950°C, Journal of Nuclear Materials 399 (2010) 266–274.
M. Yonemura, H. Semba and M. Igarashi, Development of Microstructural Damage in Ni-Based Alloys During Creep, Metallurgical and Materials Transactions A. 47A (2016) 1898-1905.
Y. Wu, M. Zhang, X. Xie, F. Lin and S. Zhao, Dynamic recrystallization of a new nickel-based alloy for 700°C A-USC power plant applications with different initial states: as-homogenized and as-forged, Materials Science & Engineering A. 662 (2016) 283-295.
A. Porter and B. Ralph, The recrystallization of nickel-base superalloys, Journal of material science. 16 (1981) 707-713.
T. Nakazawa and H. Abo, The Effects of Some Factors on the Creep Behavior of Type 304 Stainless Steel, Tetsu-to-Hagane. 63 (1977) 82-91 (in Japanese).
A. M. Elbatahgy, T. Matsuo and M. Kikuchi, Grain Boundary Precipitation Strengthening due to γ' Phase in High Temperature Creep of a Ni-base Superalloy, Tetsu-to-Hagane. 76 (1990) 125-132 (in Japanese).
Y. Kondo, A. Ishizaki and J. Namekata, Effect of Carbide Precipitation Formed on Dislocations along Grain Boundaries on High Temperature Creep Resistance of a Ni-30Cr Alloy, Tetsu-to-Hagane. 76 (1990) 147-154 (in Japanese).
K. Kimura, K. Sawada and H. Kushima, Long-Term Creep Strength Property of Advanced Ferritic Creep Resistant Steels, Proceedings of 6th Int Conf on Advanced in Materials Technology for Fossil Power Plants. (2010) 732-751.
K. Sawada, K. Kubo and K. Kimura, Evaluation of Microstructural Factors of High Chromium Ferritic Steel Based on Analysis of Anelasticity Behavior at High Temperature, Tetsu-to-Hagane. 90 (2004) 835-840 (in Japanese).
K. Maruyama, K. Sawada, J. Koike, H. Sato and K. Yagi, Examination of deformation mechanism maps in 2.25Cr-1Mo steel by creep tests at strain rates of 10-11 to 10-6 S-1, Materials Science and Engineering A. 224 (1997) 166-172.