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Effect of Hot Isostatic Pressing on the Tensile Property of a Second Generation Single Crystal Superalloy

  • Jian Zhang
  • Huiming Guo
  • Yunsong Zhao
  • Yushi Luo
Conference paper

Abstract

The hot-isostatic pressing (HIP) process at the condition of 1300 °C/100 MPa, 4 h was applied on the second generation single crystal superalloy DD6. Microstructural evolutions of DD6 alloy after HIP and heat treatment were observed by using optical microscope (OM), scanning electron microscope (SEM) and electron probe micro-analyzer (EPMA). The tensile properties of DD6 alloy after HIP treatment were tested at 760 and 980 °C. The results showed that the volume fraction of porosity in DD6 alloy deceased from 0.31 to 0.04% after the HIP treatment of 1300 °C/100 MPa, 4 h, meanwhile, the dendritic segregation was homogenized gradually. Compared to the standard heat treatment, the HIP treatment did not change the tensile strength and elongation of DD6 alloy at 760 °C obviously. While the elongation of DD6 alloy increased from 24.25 to 35.90% at 980 °C.

Keywords

Hot isostatic pressing Single crystal superalloy Tensile property Porosity 

References

  1. 1.
    R.C. Reed, Superalloys: Fundamentals and Applications, Cambridge University, 2006.Google Scholar
  2. 2.
    Gell M, Duhl D N, Giamei A F, The Development of Single Crystal Superalloy Turbine Blades. Superalloys1980. (1980) 205–214.Google Scholar
  3. 3.
    Hobbs, R. A., Zhang, L., Rae, C. M. F., Tin, S, The effect of ruthenium on the intermediate to high temperature creep response of high refractory content single crystal nickel-base superalloys, Materials Science & Engineering A. 489(1–2) (2008) 65–76.Google Scholar
  4. 4.
    D.N.D. A. D. Cetel, Second-Generation Nickel-Base Single Crystal Superalloy, Superalloys 1988 (1988) 235–244.Google Scholar
  5. 5.
    Lamm M, Singer R F, The Effect of Casting Conditions on the High-Cycle Fatigue Properties of the Single-Crystal Nickel-Base Superalloy PWA 1483, Metallurgical & Materials Transactions A. 38(6) (2007) 1177–1183.Google Scholar
  6. 6.
    Bokstein, B. S., Epishin, A. I., Link, T., Esin, V. A., Rodin, A. O., Svetlov, I. L, Model for the porosity growth in single-crystal nickel-base superalloys during homogenization, Scripta Materialia. 57 (2007) 801–804.Google Scholar
  7. 7.
    Lecomte-Beckers J. Study of solidification features of nickel-base superalloys in relation with composition, Metallurgical Transactions A. 19(9) (1988) 2333–2340.Google Scholar
  8. 8.
    Kim M T, Kim D S, Oh O Y. Effect of γ′ precipitation during hot isostatic pressing on the mechanical property of a nickel-based superalloy, Materials Science & Engineering A. 480(1–2) (2008) 218–225.Google Scholar
  9. 9.
    Shuxian H E, Wang J, Sun B, Influence of HIP Treatment on Microporosity and Properties of Thin Wall Superalloy Casting, Hot Working Technology. 43(21) (2014) 88–97.Google Scholar
  10. 10.
    Li, J. R., Zhong, Z. G., Liu, S. Z., Tang, D. Z., Wei, P., Wei, P. Y., A Low-Cost Second Generation Single Crystal Superalloy DD6[C]// Superalloys2000. (2000) 777–783.Google Scholar
  11. 11.
    Wasielewski G E, Lindblad N R, Elimination of Casting Defects Using HIP, Superalloys1972. (1972) D-1-D-24.Google Scholar
  12. 12.
    Wang X G, Liu J L, Jin T, Sun, X. F, Tensile behaviors and deformation mechanisms of a nickel-base single crystal superalloy at different temperatures, Materials Science & Engineering A. 598(598) (2014) 154–161.Google Scholar
  13. 13.
    Hobbs R A, Zhang L, Rae C M F, Tin, S, Mechanisms of Topologically Close-Packed Phase Suppression in an Experimental Ruthenium-Bearing Single-Crystal Nickel-Base Superalloy at 1100 °C, Metallurgical & Materials Transactions A, 39(5) 2008 1014–1025.Google Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  • Jian Zhang
    • 1
  • Huiming Guo
    • 2
  • Yunsong Zhao
    • 1
  • Yushi Luo
    • 2
  1. 1.Science and Technology on Advanced High Temperature Structural MaterialsBeijing Institute of Aeronautical MaterialsBeijingChina
  2. 2.Sichuan Gas Turbine Research EstablishmentSichuanChina

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