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Effect of cooling rate after solution on microstructure and creep properties of single crystal superalloy DD3

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Abstract

The effect of different cooling rate on microstructure and creep properties of DD3 single crystal superalloy after solution treatment was investigated. 10 °C/min cooling rate is adverse to the creep properties performed at all the conditions of 760 °C/786 MPa, 982 °C/210 MPa and 1038 °C/161 MPa. The best creep lives can be obtained with 149 °C/min cooling rate specimens at 760 °C/786 MPa. At 982 °C/210 MPa and 1038 °C/161 MPa, a cooling rate of 38 °C/min shows the best creep properties in the four kinds of bars. The experimental results show that the size of γ′ precipitates decreases with the increasing of cooling rate from 10 °C/min to 149 °C/min. During the creep test, the directional coarsening of γ′ precipitates occurred and γ′ rafting is formed.

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References

  1. Kamaraj M., Rafting in single crystal nickel-base superalloys-An overview. Sadhana, 2003, (28): 115.

  2. Kondo Y., Kitazaki N., and Namekata J., Effect of morphology of γ′ phase on creep resistance of a single crystal nickel-based superalloy, CMSX-4. [in] Proceedings of the eighth International Symposium on Superalloys TMS, PA, 1996: 297.

  3. Guo Xiping, Fu Hengzhi, Sun Jiahua, and Kiyoshi Kusabiraki, Deformed microstructure of the single crystal superalloy NASAIR 100 at 1050 °C, Metallurgical and Materials Transactions A, 1999, (30A): 2843.

  4. Nobuhiro M., Yoshihiro K., and Narihito O., The influence of dislocation substructure on creep rate during accelerating creep stage of single crystal nickel-based superalloy, CMSX-4. [in] Proceedings of the ninth International Symposium on Superalloys 2000, TMS, PA. 377.

  5. Tian Sugui, Zhang Jinghua, Zhou Huihua, Yang Hongcai, and Xu Yongbo, Aspects of primary creep of a single crystal nickel-bade superalloy, Materials Science and Engineering, 1999, (A262): 271.

  6. Maclachlan D.W., and Knowles D.M, Creep behavior modelling of the single-crystal superalloy CMSX-4, Metallurgical and Materials Transactions A, 2000, (31A): 1401.

  7. Pollock T.M., and Argon A.S, Creep resistance of CMSX-3 Nickel base superalloy single crystals. Acta Metall Mater, 1999, (40): 1.

  8. Maclachlan D.W., and Knowles D.M., The effect of material behavior on the analysis of single crystal turbine blades: Part I-Material model. Fatigue & Fracture of Engineering Materials & Structures, 2002, (25): 385.

  9. Rae C.M.F., Matan N., Cox D.C., Rist M.A., and Reed R.C., On the primary creep of CMSX-4 superalloy single crystals. Metallurgical and Materials Transactions A, 2000, (31A): 2219.

  10. Maclachlan D.W., Wright L.W., Gunturi S.S.K., and Knowles D.M., Modelling the anisotropic biaxial creep behavior of Ni-base single crystal superalloys CMSX-4 and SRR99 at 1223 K. [in] Proceedings of the Ninth International Symposium on Superalloys 2000, TMS, PA. 357.

  11. Matan N., Cox D.C., Carter P., Rist, M.A., Rae C.M.F., and Reed R.C., Creep of CMSX-4 superalloy single crystals: Effects of misorientations and temperature, Acta Metall Mater, 1999, (47): 1549.

  12. Reed R.C., Matan N., Cox D.C., Rist M.A., and Rae C.M.F., Creep of CMSX-4 superalloy single crystals: Effects of rafting at high temperature. Acta Metall Mater, 1999, (47): 3367.

  13. Tang Dingzhong, Ye Guosheng, and Wu Zhongtang, Evaluation for DD3 SC superalloy, Journal of Materials Engineering, 1997, (9): 6.

  14. Wu Zhongtang, Chen Rongzhang, and Han Yafang, Effect of heat treatment on microstructure and mechanical properties of a single crystal superalloy DD3, Chin. J. Met. Sic. Trchnol., 1990, (6): 8.

  15. Chen Rongzhang, Wei Shuyue, and Wu Zhongtang, The creep behaviour of a nickel-base single crystal superalloy, Chin. J. Met. Sic. Trchnol., 1986, (6): 378.

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Authors and Affiliations

  1. National Key Laboratory of Science and Technology on Advanced High Temperature Structural Materials, Beijing Institute of Aeronautical Materials, Beijing, 100094, China

    Weiwei Liu & Dingzhong Tang

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  1. Weiwei Liu
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  2. Dingzhong Tang
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Correspondence to Weiwei Liu.

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Liu, W., Tang, D. Effect of cooling rate after solution on microstructure and creep properties of single crystal superalloy DD3. Rare Metals 30 (Suppl 1), 396–400 (2011). https://doi.org/10.1007/s12598-011-0311-8

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  • DOI: https://doi.org/10.1007/s12598-011-0311-8

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