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Creep properties of a powder metallurgy disk superalloy at 700 °C

Published online by Cambridge University Press:  09 January 2017

Kaixin Dong Open the ORCID record for Kaixin Dong [Opens in a new window] ,
Chao Yuan ,
Shuang Gao ,
Chonglin Jia ,
Jianting Guo  and
Changchun Ge
Kaixin Dong
Affiliation:
Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
Chao Yuan*
Affiliation:
Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
Shuang Gao
Affiliation:
Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
Chonglin Jia
Affiliation:
School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
Jianting Guo
Affiliation:
Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
Changchun Ge
Affiliation:
School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
*
a)Address all correspondence to this author. e-mail: ychao@imr.ac.cn
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Abstract

As the operating temperature of disk service was elevated from 650 °C to 700 °C, the creep properties urged to be paid attention. To investigate the creep properties of spray-formed low solvus, high refractory (LSHR) superalloy at about 700 °C, creep tests were conducted under seven different stress ranging from 690 MPa to 897 MPa. By means of creep curves and fracture microstructure observation, the creep behaviors and fracture mechanisms of spray-formed LSHR were analyzed. Stress exponent of the alloy was comparable to other disk superalloys such as Waspaloy and Inconel 718. It was interesting to find a transition in the creep behavior in two stress regimes. The contribution of grain boundary sliding in the low stress regime was greater than that in the higher stress. Under higher stress microcracks initiated along the intragranular slip bands because of strain concentration. The spray-forming LSHR exhibited a good creep resistance at low stress compared with other two superalloys by using Larson–Miller parameter, which was consistent with the transition of fracture behaviors.

Keywords

creep behaviorspray formingpowder metallurgy superalloyfracture mechanism
Type
Articles
Information
Journal of Materials Research , Volume 32 , Issue 3 , 14 February 2017 , pp. 624 - 633
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Copyright
Copyright © Materials Research Society 2017 

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Footnotes

Contributing Editor: Mathias Göken

References

REFERENCES

Leatham, A.: Spray forming: Alloys, products and markets. Met. Powder Rep. 54(5), 28 (1999).Google Scholar
NASA Glenn Research Center: Thermal and mechanical property characterization of the advanced disk alloy LSHR (2005). Available at: https://ntrs.nasa.gov/search.jsp?R=20050186902 (accessed 7 July 2015).Google Scholar
Chan, K.S.: Roles of microstructure in fatigue crack initiation. Int. J. Fatigue 32(9), 1428 (2010).Google Scholar
Gabb, T.P., Gayda, J., Telesman, J., Ghosn, L.J., and Garg, A.: Factors influencing dwell fatigue life in notches of a powder metallurgy superalloy. Int. J. Fatigue 48, 55 (2013).Google Scholar
Everitt, S., Jiang, R., Gao, N., Starink, M.J., Brooks, J.W., and Reed, P.A.S.: Comparison of fatigue crack propagation behaviour in two gas turbine disc alloys under creep–fatigue conditions: Evaluating microstructure, environment and temperature effects. Mater. Sci. Technol. 29(7), 781 (2013).Google Scholar
Viswanathan, G.B., Sarosi, P.M., Henry, M.F., Whitis, D.D., Milligan, W.W., and Mills, M.J.: Investigation of creep deformation mechanisms at intermediate temperatures in René88 DT. Acta Mater. 53(10), 3041 (2005).Google Scholar
Gu, Y., Cui, C., Ping, D., Harada, H., Fukuda, T., and Fujioka, J.: Creep behavior of new kinds of Ni–Co-base superalloys. Mater. Sci. Eng., A 510, 250 (2009).CrossRefGoogle Scholar
Gu, Y., Harada, H., Cui, C., Ping, D., Sato, A., and Fujioka, J.: New Ni–Co-base disk superalloys with higher strength and creep resistance. Scr. Mater. 55(9), 815 (2006).Google Scholar
Garosshen, T.J., Tillman, T.D., and McCarthy, G.P.: Effects of B, C, and Zr on the structure and properties of a P/M nickel base superalloy. Metall. Trans. A 18(1), 69 (1987).Google Scholar
Gabb, T., Telesman, J., Kantzos, P., and Garg, A.: Effects of temperature on failure modes for a nickel-base disk superalloy. J. Fail. Anal. Prev. 7(1), 56 (2007).Google Scholar
Kim, D-H., Kim, J-H., Sa, J-W., Lee, Y-S., Park, C-K., and Moon, S-I.: Stress rupture characteristics of Inconel 718 alloy for ramjet combustor. Mater. Sci. Eng., A 483, 262 (2008).CrossRefGoogle Scholar
Paslay, P., Wells, C., and Leverant, G.: An analysis of primary creep of nickel-base superalloy single crystals. J. Appl. Mech. 37(3), 759 (1970).Google Scholar
Rösler, J. and Arzt, E.: A new model-based creep equation for dispersion strengthened materials. Acta Metall. Mater. 38(4), 671 (1990).Google Scholar
Harper, J. and Dorn, J.E.: Viscous creep of aluminum near its melting temperature. Acta Metall. 5(11), 654 (1957).CrossRefGoogle Scholar
Ig Hong, S.: Influence of dynamic strain aging on the stress exponent and the dislocation substructure for the creep of AlMg alloys. Mater. Sci. Eng. 82, 175 (1986).Google Scholar
Byrne, J., Hall, R., and Grabowski, L.: Elevated temperature fatigue crack growth under dwell conditions in Waspaloy. Int. J. Fatigue 19(5), 359 (1997).Google Scholar
Floreen, S. and Kane, R.H.: An investigation of the creep-fatigue-environment interaction in a Ni-base superalloy. Fatigue Fract. Eng. Mater. Struct. 2(4), 401 (1979).Google Scholar
Huo, J.S., Gou, J.T., Zhou, L.Z., Qin, X.Z., and Li, G.S.: High temperature creep deformation mechanisms of a hot corrosion-resistant nickel-based superalloy. J. Mater. Eng. Perform. 16(1), 55 (2007).Google Scholar
Wright, S.I., Nowell, M.M., and Field, D.P.: A review of strain analysis using electron backscatter diffraction. Microsc. Microanal. 17(03), 316 (2011).Google Scholar
Kamaya, M.: Measurement of local plastic strain distribution of stainless steel by electron backscatter diffraction. Mater. Charact. 60(2), 125 (2009).Google Scholar
Caron, P., Khan, T., and Veyssière, P.: On precipitate shearing by superlattice stacking faults in superalloys. Philos. Mag. A 57(6), 859 (1988).Google Scholar
Chen, Q.Z. and Knowles, D.M.: Mechanism of 〈1 1 2〉/3 slip initiation and anisotropy of γ′ phase in CMSX-4 during creep at 750 °C and 750 MPa. Mater. Sci. Eng., A 356(1–2), 352 (2003).Google Scholar
Milligan, W.W. and Antolovich, S.D.: The mechanisms and temperature dependence of superlattice stacking fault formation in the single-crystal superalloy PWA 1480. Metall. Mater. Trans. A 22(10), 2309 (1991).CrossRefGoogle Scholar
Condat, M. and Décamps, B.: Shearing of γ′ precipitates by single a/2 〈110〉 matrix dislocations in a γ/γ′ Ni-based superalloy. Scr. Metall. 21(5), 607 (1987).CrossRefGoogle Scholar
Décamps, B., Morton, A.J., and Condat, M.: On the mechanism of shear of γ′ precipitates by single (a/2) 〈110〉 dissociated matrix dislocations in Ni-based superalloys. Philos. Mag. A 64(3), 641 (1991).Google Scholar
Pope, D.P. and Ezz, S.S.: Mechanical properties of Ni3AI and nickel-base alloys with high volume fraction of γ′. Int. Met. Rev. 29(1), 136 (1984).Google Scholar
Kolbe, M.: The high temperature decrease of the critical resolved shear stress in nickel-base superalloys. Mater. Sci. Eng., A 319, 383 (2001).Google Scholar
Raujol, S., Pettinari, F., Locq, D., Caron, P., Coujou, A., and Clément, N.: Creep straining micro-mechanisms in a powder-metallurgical nickel-based superalloy. Mater. Sci. Eng., A 387, 678 (2004).CrossRefGoogle Scholar
Zhao, X., Lin, X., Chen, J., Xue, L., and Huang, W.: The effect of hot isostatic pressing on crack healing, microstructure, mechanical properties of Rene88DT superalloy prepared by laser solid forming. Mater. Sci. Eng., A 504(1), 129 (2009).Google Scholar
Knowles, D. and Chen, Q.: Superlattice stacking fault formation and twinning during creep in γ/γ′ single crystal superalloy CMSX-4. Mater. Sci. Eng., A 340(1), 88 (2003).Google Scholar
Ardakani, M., McLean, M., and Shollock, B.: Twin formation during creep in single crystals of nickel-based superalloys. Acta Mater. 47(9), 2593 (1999).Google Scholar
Kovarik, L., Unocic, R.R., Li, J., Sarosi, P.M., Shen, C., Wang, Y., and Mills, M.J.: Microtwinning and other shearing mechanisms at intermediate temperatures in Ni-based superalloys. Prog. Mater. Sci. 54(6), 839 (2009).Google Scholar
NASA Glenn Research Center: Characterization of the temperature capabilities of advanced disk alloy ME3 (2002). Available at: https://ntrs.nasa.gov/search.jsp?R=20020081280 (accessed 15 October 2015).Google Scholar
Locq, D., Caron, P., Raujol, S., Pettinari-Sturmel, F., Coujou, A., and Clément, N.: On the role of tertiary γ′ precipitates in the creep behaviour at 700 °C of a PM disk superalloy. In Superalloys 2004: Tenth International Symposium on Superalloys, Pollock, T.M., Green, K.A., Harada, H., Howson, T.E., Reed, R.C., Schirra, J.J. and Walston, S., eds. (Minerals, Metals, and Materials Society, Warrendale, 2004); p. 179.Google Scholar
Dubiez-Le Goff, S., Couturier, R., Guétaz, L., and Burlet, H.: Effect of the microstructure on the creep behavior of PM Udimet 720 superalloy—Experiments and modeling. Mater. Sci. Eng., A 387, 599 (2004).CrossRefGoogle Scholar
Soula, A., Renollet, Y., Boivin, D., Pouchou, J.L., Locq, D., Caron, P., and Bréchet, Y.: Analysis of high-temperature creep deformation in a polycrystalline nickel-base superalloy. Mater. Sci. Eng., A 510(10), 301 (2009).CrossRefGoogle Scholar
Langdon, T.G.: Grain boundary sliding as a deformation mechanism during creep. Philos. Mag. 22(178), 689 (1970).CrossRefGoogle Scholar
Peidao, Z.: Fracture failure analysis. Phys. Test. Chem. Anal., Part A (in Chinese) 41(7), 375 (2005).Google Scholar
Mohamed, F.A. and Langdon, T.G.: Creep at low stress levels in the superplastic Zn–22% Al eutectoid. Acta Metall. 23(1), 117 (1975).Google Scholar
Laird, C., Finney, J., and Kuhlmann-Wilsdorf, D.: Dislocation behavior in fatigue VI: Variation in the localization of strain in persistent slip bands. Mater. Sci. Eng. 50(1), 127 (1981).Google Scholar
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