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Alloy 718 for Oilfield Applications

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Abstract

Alloy 718 (UNS N07718) was developed for use in aircraft gas turbine engines, but its unique combination of room-temperature strength and aqueous corrosion resistance made it a candidate for oilfield fasteners, valves, drill tools, and completion equipment. As well environments became more severe, stress corrosion and hydrogen embrittlement failures in production equipment drove the evolution of the composition and microstructure that distinguish today’s oilfield-grade 718 from aerospace grades. This paper reviews the development of the grade and its applications and describes some of its unique characteristics, testing, and manufacturing methods as well as newer alloys designed for high-pressure high-temperature (HPHT) conditions.

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References

  1. H.L. Eiselstein and D.J. Tillack, Superalloys 718, 625 and Various Derivatives, ed. E.A. Loria (Warrendale, PA: TMS, 1991), pp. 1–14.

    Google Scholar 

  2. H.L. Eiselstein, U.S. patent 3,046,108 (24 July 1962).

  3. Inconel Alloy 718 (The International Nickel Co., Inc., 1968).

  4. J. Kolts, Superalloy 718—Metallurgy and Applications, ed. E.A. Loria (Warrendale, PA: TMS, 1989), pp. 329–344.

    Google Scholar 

  5. O.A. Onyewuenyi, Superalloy 718—Metallurgy and Applications, ed. E.A. Loria (Warrendale, PA: TMS, 1989), pp. 345–362.

    Google Scholar 

  6. R.B. Bhavsar, A. Collins, and S. Silverman, Superalloys 718, 625, 706 and Various Derivatives, ed. E.A. Loria (Warrendale, PA: TMS, 2001), pp. 47–55.

    Google Scholar 

  7. International Standard, NACE MRO175/ISO 15156-3:2003.

  8. NACE Standard TM0177-2005, Laboratory Testing of Metals for Resistance to Sulfide Stress Cracking and Stress Corrosion Cracking in H 2 S Environments (Houston, TX: NACE International).

  9. Aerospace Material Specification 5662L, Nickel Alloy Corrosion and Heat Resistant Bars, Forgings and Rings (SAE, 2000).

  10. API Standard 6A718, Nickel-Base Alloy 718 (UNS N07718) for Oil and Gas Drilling and Production Equipment, 2nd edn. (Washington, DC: API Publishing Services, 2009).

  11. S. Huizinga, B. McLoughlin, W. Liek, and J. DeJong, Corrosion 2003, Paper No. 03129 (2003).

  12. T. Cassagne, M. Bonis, D. Hillis, and C. Duret, EuroCorr 2008 (Sept 2008).

  13. R.J. Walter and W.T. Chandler, Hydrogen in Metals, ed. I.M. Bernstein and A.W. Thompson (ASM, 1973), pp. 515–525.

  14. W.L. Kimmerle, M.T. Miglin, and J.L. Nelson, Superalloy 718 Metallurgy and Applications, ed. E.A. Loria (Warrendale, PA: TMS, 1989), pp. 417–426.

    Google Scholar 

  15. S. Hirano, E. Yamamoto, H. Okamoto, Y. Oka, and M. Igarashi, Superalloys 718, 625, 706 and various Derivatives, ed. E.A. Loria (Warrendale, PA: TMS, 1994), pp. 775–786.

    Google Scholar 

  16. J.A. Harris, T. Lemke, D. Smith, and R. Moeller, NACE Corrosion 84, Paper No. 216 (2–6 April 1984).

  17. P. Ganesan, E.F. Clatworthy, and J.A. Harris, NACE Corrosion 87, Paper No. 286 (March 1987).

  18. S.A. Silverman, R. Bhavsar, C. Malara, and M. Deuterio, NACE Corrosion 2005, Paper No. 5107 (2005).

  19. E.L. Hibner, NACE Corrosion 90, Paper No. 50 (23–27 April 1990).

  20. R.B. Frank and T.A. DeBold, NACE Corrosion 88, Paper No. 75 (21–25 March 1988).

  21. S.K. Mannan and S.J. Patel, NACE Corrosion 2008, Paper No. 08084 (March 2008).

  22. S.K. Mannan, NACE Corrosion 2010, Paper No. 10310 (2010).

  23. S.K. Mannan, 7th International Symposium on Superalloy 718 and Derivatives, ed. J. Groh (Warrendale, PA: TMS, 2010), pp. 629–644

    Google Scholar 

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Correspondence to John J. deBarbadillo.

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deBarbadillo, J.J., Mannan, S.K. Alloy 718 for Oilfield Applications. JOM 64, 265–270 (2012). https://doi.org/10.1007/s11837-012-0238-z

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