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Weld repair of gas turbine disc: optimization of pulsed TIG welding process parameters and microstructural analysis of Cr–Mo-V Steel

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Abstract

A pulsed tungsten inert gas (TIG) welding process was successfully conducted for repairing worn surfaces of a Cr–Mo-V (ASTM A470-8) gas turbine disc. Metallurgical aspects of the welding repair procedure were fully described that included the investigation of pulsed current, welding thermal cycles (preheat temperature, interpass temperature, and post-weld heat treatment (PWHT)), and bead sequencing. The results indicate that the pulsed current has a significant effect on decreasing the size and spacing of the carbides. Furthermore, choosing the suitable heat treatment leads to the formation of rod-like carbides and more dispersed distribution. The proposed process has achieved the appropriate hardness and tempered bainite microstructure in the heat affected zone (HAZ) and weld metal with the same the hardness and microstructure of turbine disc material as well as minimizing the welding defects in the turbine disc.

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References

  1. Soares C (2015) Gas turbine major components and modules. In: Gas Turbines, 2nd edn. Elsevier, pp 173–254

  2. Holub L, Dunovský J, Kovanda K, Kolařík L (2015) SAW - Narrow gap welding CrMoV heat-resistant steels focusing to the mechanical properties testing. Procedia Eng 100:1640–1648. https://doi.org/10.1016/j.proeng.2015.01.538

    Article  Google Scholar 

  3. Bodnar RL, Jaffee RI (1992) Modified 1% CrMoV rotor steel. U.S. Patent No. 5,108,699. Washington, DC: U.S. Patent and Trademark Office

  4. Mazur Z, Kubiak J (1998) Gas turbine rotor disc repair-case history. In: Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education. ASME, p V005T12A016

  5. Spry TD, Graves DJ, Kuhnen G, Faber G BH (1987) Weld repair of HP and IP turbine rotors having extensive high temperature service. In: Proceedings of the American Power Conference, Chicago. pp 1–10

  6. Kim GS, Indacochea JE, Spry TD (1991) Metallurgical aspects in welding Cr–Mo–V turbine rotor steels Part 1 Evaluation of base material and heat affected zone. Mater Sci Technol 7:42–49. https://doi.org/10.1179/mst.1991.7.1.42

    Article  Google Scholar 

  7. Kim GS, Indacochea JE, Spry TD (1991) Metallurgical aspects in welding Cr–Mo–V turbine rotor steels Part 2 Evaluation of narrow gap submerged arc weldment. Mater Sci Technol 7:147–154. https://doi.org/10.1179/mst.1991.7.2.147

    Article  Google Scholar 

  8. Clark RE, Amos DR (1990) More creep resistant turbine rotor and procedures for repair welding of low alloy ferrous turbine components. U.S. Patent 4,958,431, issued September 25, 1990

  9. Reza Tabrizi T, Sabzi M, Mousavi Anijdan SH, et al (2021) Comparing the effect of continuous and pulsed current in the GTAW process of AISI 316L stainless steel welded joint: microstructural evolution, phase equilibrium, mechanical properties and fracture mode. J Mater Res Technol 15:199–212. https://doi.org/10.1016/j.jmrt.2021.07.154

  10. Madadi F, Ashrafizadeh F, Shamanian M (2012) Optimization of pulsed TIG cladding process of stellite alloy on carbon steel using RSM. J Alloys Compd 510:71–77. https://doi.org/10.1016/j.jallcom.2011.08.073

    Article  Google Scholar 

  11. Giridharan PK, Murugan N (2009) Optimization of pulsed GTA welding process parameters for the welding of AISI 304L stainless steel sheets. Int J Adv Manuf Technol 40:478–489. https://doi.org/10.1007/s00170-008-1373-0

    Article  Google Scholar 

  12. Ugla AA (2016) Characterization of metallurgical and mechanical properties of the welded AISI 304L using pulsed and non-pulsed current TIG welding. https://doi.org/10.5281/ZENODO.1125479

  13. Kumar A, Sundarrajan S (2009) Effect of welding parameters on mechanical properties and optimization of pulsed TIG welding of Al-Mg-Si alloy. Int J Adv Manuf Technol 42:118–125. https://doi.org/10.1007/s00170-008-1572-8

    Article  Google Scholar 

  14. Ishigami A, Roy MJ, Walsh JN, Withers PJ (2017) The effect of the weld fusion zone shape on residual stress in submerged arc welding. Int J Adv Manuf Technol 90:3451–3464. https://doi.org/10.1007/s00170-016-9542-z

    Article  Google Scholar 

  15. Kou S, Le Y (1986) Nucleation mechanism and grain refining of weld metal. Weld J 65:65–70

    Google Scholar 

  16. Pal K, Pal SK (2011) Effect of pulse parameters on weld quality in pulsed gas metal arc welding: a review. J Mater Eng Perform 20:918–931. https://doi.org/10.1007/s11665-010-9717-y

    Article  Google Scholar 

  17. Sun Q, Li X, Li K, et al (2022) Effects of long-term service on microstructure and impact toughness of the weld metal and heat-affected zone in CrMoV steel joints. Met 12

  18. Kim GS, Indacochea JE, Spry TD (1988) Weldability studies in Cr-Mo-V turbine rotor steel. J Mater Eng 10:117–132. https://doi.org/10.1007/BF02833868

    Article  Google Scholar 

  19. Golañski G, Stachura S, Gajda-Kucharska B, Kupczyk J (2007) Optimisation of regenerative heat treatment parameters of G21CrMoV4-6 cast steel. Arch Mater Sci 342:342

    Google Scholar 

  20. Rao RV, Kalyankar VD (2013) Experimental investigation on submerged arc welding of Cr–Mo–V steel. Int J Adv Manuf Technol 69:93–106. https://doi.org/10.1007/s00170-013-5007-9

    Article  Google Scholar 

  21. Hilkes J, Gross V (2013) Welding CrMo steels for power generation and petrochemical applications - past, present and future Creep resistant CrMo steels. Biul Inst Spaw 11–22

  22. Saga M, Iwasaki S, Tsurusaki Y, Hata S (2005) Repair technologies of mechanical drive steam turbines for catastrophic damage. In: Proceedings of the 34th Turbomachinery Symposium, Texas A&M University. Turbomachinery Laboratories, 15–24. https://doi.org/10.21423/R1KM14

  23. Laitila J, Larkiola J, Porter D (2019) Effect of heat sinks on cooling time to weld interpass temperature. In: MATEC Web of Conferences. EDP Sciences, p 1007

  24. Aloraier AS, Ibrahim RN, Ghojel J (2004) Eliminating post-weld heat treatment in repair welding by temper bead technique: role bead sequence in metallurgical changes. J Mater Process Technol 153–154:392–400. https://doi.org/10.1016/j.jmatprotec.2004.04.383

    Article  Google Scholar 

  25. Tomków J, Rogalski G, Fydrych D, Łabanowski J (2018) Improvement of S355G10+N steel weldability in water environment by Temper Bead Welding. J Mater Process Technol 262:372–381. https://doi.org/10.1016/j.jmatprotec.2018.06.034

    Article  Google Scholar 

  26. Saunders N, Guo Z, Li X, et al (2004) The calculation of TTT and CCT diagrams for general steels. J Mat Pro Softw Lit

  27. Nemoto T, Sasaki R, Yaegashi T (1960) Welding of 2 1/4 Cr-1Mo Steel (Report 1). J Japan Weld Soc 29:44–50. https://doi.org/10.2207/qjjws1943.29.44

    Article  Google Scholar 

  28. Viswanathan R, Joshi A (1975) Effect of microstructure on the temper embrittlement of Cr-Mo-V steels. Metall Mater Trans A 6:2289. https://doi.org/10.1007/BF02818656

    Article  Google Scholar 

  29. Shenghan Z, Yaling L, Yu T (2015) Evaluation of temper embrittlement of 30Cr2MoV rotor steels using electrochemical impedance spectroscopy technique. J Spectrosc 2015:1–7. https://doi.org/10.1155/2015/957868

    Article  Google Scholar 

  30. King B (2005) Welding and post weld heat treatment of 2.25% Cr-1% Mo steel

  31. Peet MJ, Babu SS, Miller MK, Bhadeshia H (2017) Tempering of low-temperature bainite. Metall Mater Trans A 48:3410–3418

    Article  Google Scholar 

  32. Pircher H, Sussek G (1987) Testing the resistance of welds in low-alloy steels to hydrogen-induced stress corrosion cracking. Corros Sci 27:1183–1196. https://doi.org/10.1016/0010-938X(87)90107-7

    Article  Google Scholar 

  33. Bhadeshia H (2008) Interpretation of the microstructure of steels. Univ Cambridge, Engl

    Google Scholar 

  34. Indira Rani M, Marpu RN (2012) Effect of pulsed current TIG welding parameters on mechanical properties of J-joint strength of Aa6351. Int J Eng Sci 1:1–5

    Google Scholar 

  35. Balasubramanian M, Jayabalan V, Balasubramanian V (2008) Process parameter optimization of the pulsed current argon tungsten arc welding of titanium alloy. J Mater Sci Technol 24:423–426

    Google Scholar 

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Acknowledgements

The authors acknowledge the support of the Erisa Pars Sanat (EPS) company.

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  1. Hamed Vahdat Khah

    Present address: Fara Zaman Andish Company, Tabriz, Iran

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  1. Erisa Pars Sanat (EPS) Company, Tehran, Iran

    Parisa Vahdatkhah & Seyed Roohallah Tabatabaee Kopaee

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  1. Parisa Vahdatkhah
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Correspondence to Parisa Vahdatkhah.

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Vahdatkhah, P., Tabatabaee Kopaee, S. & Vahdat Khah, H. Weld repair of gas turbine disc: optimization of pulsed TIG welding process parameters and microstructural analysis of Cr–Mo-V Steel. Int J Adv Manuf Technol 123, 213–232 (2022). https://doi.org/10.1007/s00170-022-10174-7

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