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Superalloys

  • Stefano Gialanella
  • Alessio Malandruccolo
Chapter
Part of the Topics in Mining, Metallurgy and Materials Engineering book series (TMMME)

Abstract

The three main groups of superalloys, cobalt-, iron-, and nickel-based, are presented, with reference to their compositional and processing aspects. The main selection criteria for designing the complex alloy compositions are illustrated. Superalloys, since the early stages of their development, have gained an ever-increasing role in the fabrication of components of gas turbine aero-engines, owing to the excellent combination of structural properties and corrosion resistance, both retained up to relatively high temperatures. These aspects have been enhanced further by processing routes, like directional solidification and single-crystal investment casting. Through the elimination of grain boundaries perpendicular to the main stress axis, a significant reduction of the diffusive creep rate has been attained. Diffusive creep is one of the deformation mechanisms in the Ashby maps, discussed in this chapter, together with another physical metallurgy issue: the superalloy strengthening by the precipitation of ordered γ′ phase. The microstructure of the superalloys and, thereby, their mechanical properties are usually refined by thermal treatments, whose main working principles are presented. Eventually the main applications of this fundamental class of alloys are introduced.

References

  1. Antony K C (1983) Wear-resistant Cobalt-base Alloys. JOM 35 (2): 52–60CrossRefGoogle Scholar
  2. Ashby M F (1972) A first Report on Deformation-mechanism Maps. Acta Metallurgica 20 (7): 887–897CrossRefGoogle Scholar
  3. Ashby M F, Frost H J (1982) Deformation Mechanisms Maps. Pergamon PressGoogle Scholar
  4. ASM International (1991) ASM Handbook Vol. 2 – Properties and Selection of Nonferrous Alloys and Special Purpose Materials. ASM International, Materials Park, OhioGoogle Scholar
  5. ASM International (1993) ASM Handbook Vol. 1 – Properties and Selection: Iron, Steel and High Performance Alloys. ASM International, Materials Park, OhioGoogle Scholar
  6. ASM International (2000) ASM Specialty Handbook – Nickel, Cobalt and Their Alloys. ASM International, Materials Park, OhioGoogle Scholar
  7. ASM International (2008) ASM Handbook Vol. 15 – Casting. ASM International, Materials Park, OhioGoogle Scholar
  8. ASM International (2016) ASM Handbook Vol. 4E – Heat treating of Nonferrous Alloys. ASM International, Materials Park, OhioGoogle Scholar
  9. Barrett C S, Massalski T (1980) Structure of Metals 3rd edn. Pergamon PressGoogle Scholar
  10. Bauer A et al. (2010) Microstructure and Creep Strength of different γ/γ′-strengthened Co-base superalloy variants. Scripta Materialia 63 (12): 1197–1200CrossRefGoogle Scholar
  11. Cahn R W, Haasen P (1996) Physical Metallurgy 4th edn. North HollandGoogle Scholar
  12. Callister W, Rethwisch D (2012) Fundamentals of Materials Science and Engineering: An Integrated Approach, 4th edn. Wiley John & SonsGoogle Scholar
  13. Campbell F C (2006) Manufacturing Technology for Aerospace Structural Materials. ElsevierGoogle Scholar
  14. Chandler H (1996) Heat Treater’s Guide: Practices and Procedures for Nonferrous Alloys. ASM International, Materials Park, OhioGoogle Scholar
  15. Cui C et al (2006) A New Co-Base Superalloy Strengthened by γ′ Phase. Materials Transactions 47 (8): 2099–2102CrossRefGoogle Scholar
  16. Davis J R (2000) The Nickel Industry: Occurrence, Recovery, and Consumption. In: ASM Specialty Handbook – Nickel, Cobalt and Their Alloys. ASM International, Materials Park, Ohio, p 3–6Google Scholar
  17. Dimiduk D (1991) Dislocation Structures and Anomalous Flow in L12 Compounds. Journal de Physique III 1 (6): 1025–1053CrossRefGoogle Scholar
  18. Donachie M J, Donachie S J (2002) Superalloys – A Technical Guide. ASM InternationalGoogle Scholar
  19. Everhart J (1971) Engineering Properties of Nickel and Nickel Alloys. Springer USCrossRefGoogle Scholar
  20. Farrar J (2004) The Alloy Tree – A guide to Low-Alloy Steels, Stainless Steels and Nickel-base Alloys. Woodhead Publishing Limited and CRC PressGoogle Scholar
  21. Fergus JW (2010) Recent developments in cathode materials for lithium ion batteries. Journal of Power Sources, 195(4): 939–954CrossRefGoogle Scholar
  22. Fontani M et al (2015) The Lost Elements: The Periodic Table’s Shadow Side. Oxford University PressGoogle Scholar
  23. Frost J H, Ashby M F (1982) Deformation-Mechanism Maps: The Plasticity and Creep of Metals and Ceramics. Pergamon PressGoogle Scholar
  24. Geddes B et al (2010) Superalloys: Alloying and Performance. ASM International, Materials Park, OhioGoogle Scholar
  25. Gell M et al (1987) Advanced Superalloy Airfoil. JOM 39 (7): 11–15CrossRefGoogle Scholar
  26. Giamei A. F. (2013) Development of Single Crystal Superalloy: A brief History. Advanced Materials and Processes 171 (9): 26–30Google Scholar
  27. Guttmann V (1981) Phase Stability in High Temperature Alloys. Applied Science Publishers LTD, LondonGoogle Scholar
  28. Haynes International (2017a) HASTELLOY® X alloy. Available via DIALOG. http://www.haynesintl.com/alloys/alloy-portfolio_/High-temperature-Alloys/HASTELLOY-X-alloy/HASTELLOY-X-principal-features.aspx. Accessed 27 Dec 2018
  29. Haynes International (2017b) MULTIMET® alloy. Available via DIALOG. https://www.haynesintl.com/alloys/alloy-portfolio_/High-temperature-Alloys/MULTIMET-alloy/principal-features.aspx. Accessed 28 Dec 2018
  30. Hemeker K J et al (1991) An Investigation of the Mechanisms that Control Intermediate Temperature Creep of Ni3Al. Acta Metallurgica et Materialia 39 (8): 1901–1913CrossRefGoogle Scholar
  31. Hull D, Bacon J (2011) Introduction to Dislocations 5th edn. Butterworth-HeinemannGoogle Scholar
  32. Jena A K, Chaturvedi M C (1984) The Role of Alloying Elements in the Design of Nickel-base Superalloys. Journal of Materials Science 19 (10): 3121–3139CrossRefGoogle Scholar
  33. Jozwik P et al (2015) Applications of Ni3Al Based Intermetallic Alloys – Current Stage and Potential Perspectives. Materials 8 (5): 2537–2568CrossRefGoogle Scholar
  34. Kear B H, Wilsdorf H G F (1962) Dislocation Configurations in Plastically deformed Cu3Au Alloys. Transactions of the Metallurgical Society of AIME 224: 382–386Google Scholar
  35. Kracke A (2010) Superalloys, the most successful Alloy System of modern Times – Past, Present and Future. In: Ott E A et al (eds) Superalloy 718 and Derivatives – Proceedings of the 7th International Symposium on SUPERALLOY 718 and DERIVATIVES, Pittsburgh, 2010Google Scholar
  36. Krakow R et al (2017) On the Crystallography and Composition of topologically close-packed phases in ATI 718Plus ®. Acta Materialia 130: 271–280CrossRefGoogle Scholar
  37. Kuo K H et al (1985) Tetrahedrally close-packed Phases in Superalloys: new Phases and Domain Structures observed by high-resolution Electron Microscopy. Journal of Materials Science 21 (8): 2597–2622CrossRefGoogle Scholar
  38. Massalski T B et al (1986) Binary Alloys Phase Diagrams Vol. 2. ASM InternationalGoogle Scholar
  39. Mouritz A (2012) Introduction to Aerospace Materials. Woodhead Publishing LimitedGoogle Scholar
  40. Mukherji D et al (2011) Beyond Ni-based Superalloys: Development of CoRe-based Alloys for Gas Turbine Applications at Very High Temperatures. International Journal of Materials Research 102(9): 1125–1132CrossRefGoogle Scholar
  41. Murakumo T et al (2004) Creep Behaviour of Ni-base Single-crystal Superalloys with various γ′ Volume Fraction. Acta Materialia 52 (12): 3737–3744CrossRefGoogle Scholar
  42. Murray J L (1982) The Co-Ti (Cobalt-Titanium) System. Bulletin of Alloy Phase Diagrams 3: 74–85CrossRefGoogle Scholar
  43. Murray J L (1987) Phase Diagrams of Binary Titanium Alloys. ASM InternationalGoogle Scholar
  44. Nabarro F R N, de Villers F (1995) The Physics of Creep and Creep-resistant Alloys. CRC PressGoogle Scholar
  45. Nakajima K et al (2018) Global Distribution of Material Consumption: Nickel, Copper and Iron. Resource, Conservation and Recycling 133: 369–374CrossRefGoogle Scholar
  46. Neumeier S et al (2016) Diffusion of Solutes in fcc Cobalt investigated by Diffusion Couples and First Principles Kinetic Monte Carlo. Acta Materialia 106: 304–312CrossRefGoogle Scholar
  47. Pollock T M (2016) Alloy Design for Aircraft Engines. Nature Materials 15 (8): 809–815CrossRefGoogle Scholar
  48. Pollock T M, Tin S (2006) Nickel-Based Superalloys for Advanced Turbine Engines: Chemistry, Microstructure, and Properties. Journal of Propulsion and Power 22 (2): 361–374CrossRefGoogle Scholar
  49. Porter D, Easterling K E, Sherif M Y (2009) Phase Transformations in Metals and Alloys, 3rd end. CRC PressGoogle Scholar
  50. Prasad E N, Wanhill R (2017) Aerospace Materials and Material Technologies Volume 1: Aerospace Materials. SpringerGoogle Scholar
  51. Radavich J F (1989) The Physical Metallurgy of Cast and Wrought Alloy 718. In: Loria E A (ed) Superalloys 718 Metallurgy and Applications. TMS, p 229–240fiGoogle Scholar
  52. Rae C M F et al (2000) Topologically close-packed Phases in an experimental Rhenium-containing Single Crystal Superalloy. Superalloys 2000: 767–776Google Scholar
  53. Rae C M F, Reed R C (2001) The Precipitation of Topologically close-packed Phases in Rhenium-containing Superalloys. Acta Materialia 49 (19): 4113–4125CrossRefGoogle Scholar
  54. Reed R C (2006) The Superalloys – Fundamentals and Applications. Cambridge University Press, Cambridge (UK)CrossRefGoogle Scholar
  55. Reed R C et al. (2007) Damage Accumulation during Creep Deformation of a Single Crystal Superalloy at 1150 °C. Materials Science and Engineering A 448 (1–2): 88–96CrossRefGoogle Scholar
  56. Reed-Hill R E (1973) Physical Metallurgy Principles 2nd edn. PWS-KENT Publ., BostonGoogle Scholar
  57. Ricks R A et al (1983) The Growth of γ Precipitates in Nickel-Base Superalloys. Acta Materialia 31: 43–53CrossRefGoogle Scholar
  58. Riddihough M (1970) Stellite as a wear-resistant material. Tribology 3 (4): 211–215CrossRefGoogle Scholar
  59. Rogister C et al (1967) Improvement of Heat Resisting Cobalt Base Alloys by Precipitation Hardening. Cobalt 34: 3–9Google Scholar
  60. Rolls-Royce (1996) The Jet Engine 5th edition. Rolls-Royce plc, DerbyGoogle Scholar
  61. Sato J et al (2006) Cobalt-Base High-Temperature Alloys. Science 312 (5770): 90–91CrossRefGoogle Scholar
  62. Schafrik R E et al (2001) Application of Alloy 718 in GE Aircraft Engines: Past, Present and Next Five Years. In: Fifth International Symposium on Superalloys 718, 625, 706 and Derivatives, Embassy Suites Hotel, Pittsburg, Pennsylvania, 17–20 June 2001Google Scholar
  63. Seiser B et al (2011) TCP Phase Predictions in Ni-based Superalloys: Structure Maps Revisited. Acta Materialia 59 (2): 749–763.CrossRefGoogle Scholar
  64. Sims C T (1984) A History of Superalloy Metallurgy for Superalloy Metallurgist. Superalloys 1984: Proceedings of the Fifth International Symposium on Superalloys, Seven Springs Mountain Resort, Champion, Pennsylvania, 7–11 Oct 1984Google Scholar
  65. Sims C T et al (1987) Superalloys II. John Wiley & Sons, New YorkGoogle Scholar
  66. Sjöberg G (2010) Casting Superalloys for Structural Applications. In: Ott E A et al (ed) Superalloy 718 and Derivatives – Proceedings of the 7th International Symposium on SUPERALLOY 718 and DERIVATIVES, Pittsburgh, 2010Google Scholar
  67. Smallman R E et al (2002) Inverse Creep in Intermetallics. Materials Science and Engineering A 329–331: 852–855CrossRefGoogle Scholar
  68. Smallman R E, Ngan A H W (2014) Modern Physical Metallurgy 8th edn. Butterworth-HeinemannGoogle Scholar
  69. Suzuki A, Pollock T M (2008) High-temperature Strength and Deformation of γ/γ′ two Phase Co-Al-W-base alloys. Acta Materialia 56 (6): 1288.1297CrossRefGoogle Scholar
  70. Tylcote R F (2002) A History of Metallurgy. Maney PublishingGoogle Scholar
  71. U.S. Geological Survey (2017) Mineral Commodity Summaries. Available via DIALOG. https://minerals.usgs.gov/minerals/pubs/commodity/cobalt/mcs-2017-cobal.pdf. Accessed Jun 2018
  72. Van Schilfgaarde M et al (1999) Origin of the Invar Effect in Iron-Nickel Alloys. Nature 400: 46–49CrossRefGoogle Scholar
  73. Viatour P et al (1973) Stability of the Gamma Prime Co3Ti Compound in Simple and Complex Cobalt Alloys. Cobalt 3: 67–74Google Scholar
  74. Yoo M H (1987) Stability of Superdislocations and Shear Faults in L12 ordered Alloys. Acta Metallurgica 35 (7): 1559–1569CrossRefGoogle Scholar
  75. Zenck C H et al (2017) A novel Type of Co-Ti-Cr-base γ/γ′ Superalloys with low Mass Density. Acta Materialia 135: 244–251CrossRefGoogle Scholar
  76. Zhang S, Zhao D (2012) Aerospace Materials Handbook. CRC PressGoogle Scholar

Further Reading

  1. Durand-Charre M (1997) The Microstructure of Superalloys. CRC PressGoogle Scholar
  2. Gessinger G H (2013) Powder Metallurgy of Superalloys. Butterworth-HeinemannGoogle Scholar
  3. Kazantseva N V et al (2019) Superalloys – Analysis and Control of Failure Process. CRC PressGoogle Scholar
  1. Ott E et al (2010) Superalloy 718 and Derivatives – Proceedings of the 7th International Symposium on SUPERALLOY 718 and DERIVATIVES, Marriott Pittsburgh City Center, Pittsburgh, Pennsylvania, 10–13 Oct 2010Google Scholar
  2. Srivastava R R et al (2014) Resource recycling of superalloys and hydrometallurgical challenges. Journal of Materials Science 49 (14): 4671–4686 CrossRefGoogle Scholar

Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • Stefano Gialanella
    • 1
  • Alessio Malandruccolo
    • 2
  1. 1.Industrial Engineering DepartmentUniversity of TrentoTrentoItaly
  2. 2.Metallurgy Industrial ConsultantBolzanoItaly

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