Effect of post weld heat treatment on P9 and P11 steel weld joints produced by GTAW and SMAW methods

Esin Tuğba Şimşek Çelik; Başar Ersegün Çelik; Şükrü Talaş

doi:10.35860/iarej.1943003

Effect of post weld heat treatment on P9 and P11 steel weld joints produced by GTAW and SMAW methods

Abstract

Post-weld stress-relieving heat treatments are commonly used to improve the mechanical performance of welded steel joints, especially when there is a risk of cracking in the weld zone. This study investigated four different welding configurations using A335 Gr. P11 and P9 pipes of different thicknesses. Firstly, an 8.18 mm-thick A335 Gr. P11 pipe was welded using the GTAW process with ER80S-B2 filler metal. Secondly, a 30 mm thick A335 Gr. P11 pipe was welded using a combination of the GTAW (ER80S-B2) and SMAW (E8018-B2) processes. Thirdly, a 20.62 mm thick A335 Gr. P9 pipe was welded using the GTAW (ER80S-B8) and SMAW (E8015-B8) processes and finally, dissimilar welding of P9 and P11 pipes (8.18 mm thick) using the GTAW (ER80S-B8) and SMAW (E8015-B8) processes. The effects of the different base materials and welding methods on the mechanical properties of the joints, as well as other changes that occurred following post weld heat treatment, were systematically evaluated. Mechanical characterization included tensile, bending and hardness tests and positive material identification (PMI) in addition to macrostructural analyses. PWHT process produced steady hardness values in both heat-treated P9 steel welds at 230 HV, whereas, this value was stable at 200HV in P11 steel welds. Similarly, yield strengths of P9 and P11 steels were 323, 287 and 311, 307, respectively increased to 460, 469 and 570, 503MPa respectively.

Keywords

References

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Details

Primary Language

English

Subjects

Resource Technologies

Journal Section

Research Article

Authors

Esin Tuğba Şimşek Çelik ^*
0000-0003-2063-7802
Türkiye

Başar Ersegün Çelik
0000-0002-3015-2553
Türkiye

Şükrü Talaş
0000-0002-4721-0844
Türkiye

Publication Date

August 25, 2026

Submission Date

May 3, 2026

Acceptance Date

August 18, 2026

Published in Issue

Year 2026 Volume: 10 Number: 2

DOI

https://doi.org/10.35860/iarej.1943003

IZ

https://izlik.org/JA96NK62WS

Cite

RIS / Bibtex

APA

Şimşek Çelik, E. T., Çelik, B. E., & Talaş, Ş. (2026). Effect of post weld heat treatment on P9 and P11 steel weld joints produced by GTAW and SMAW methods. International Advanced Researches and Engineering Journal, 10(2), 178-189. https://doi.org/10.35860/iarej.1943003

AMA

1.Şimşek Çelik ET, Çelik BE, Talaş Ş. Effect of post weld heat treatment on P9 and P11 steel weld joints produced by GTAW and SMAW methods. Int. Adv. Res. Eng. J. 2026;10(2):178-189. doi:10.35860/iarej.1943003

Chicago

Şimşek Çelik, Esin Tuğba, Başar Ersegün Çelik, and Şükrü Talaş. 2026. “Effect of Post Weld Heat Treatment on P9 and P11 Steel Weld Joints Produced by GTAW and SMAW Methods”. International Advanced Researches and Engineering Journal 10 (2): 178-89. https://doi.org/10.35860/iarej.1943003.

EndNote

Şimşek Çelik ET, Çelik BE, Talaş Ş (August 1, 2026) Effect of post weld heat treatment on P9 and P11 steel weld joints produced by GTAW and SMAW methods. International Advanced Researches and Engineering Journal 10 2 178–189.

IEEE

[1]E. T. Şimşek Çelik, B. E. Çelik, and Ş. Talaş, “Effect of post weld heat treatment on P9 and P11 steel weld joints produced by GTAW and SMAW methods”, Int. Adv. Res. Eng. J., vol. 10, no. 2, pp. 178–189, Aug. 2026, doi: 10.35860/iarej.1943003.

ISNAD

Şimşek Çelik, Esin Tuğba - Çelik, Başar Ersegün - Talaş, Şükrü. “Effect of Post Weld Heat Treatment on P9 and P11 Steel Weld Joints Produced by GTAW and SMAW Methods”. International Advanced Researches and Engineering Journal 10/2 (August 1, 2026): 178-189. https://doi.org/10.35860/iarej.1943003.

JAMA

1.Şimşek Çelik ET, Çelik BE, Talaş Ş. Effect of post weld heat treatment on P9 and P11 steel weld joints produced by GTAW and SMAW methods. Int. Adv. Res. Eng. J. 2026;10:178–189.

MLA

Şimşek Çelik, Esin Tuğba, et al. “Effect of Post Weld Heat Treatment on P9 and P11 Steel Weld Joints Produced by GTAW and SMAW Methods”. International Advanced Researches and Engineering Journal, vol. 10, no. 2, Aug. 2026, pp. 178-89, doi:10.35860/iarej.1943003.

Vancouver

1.Esin Tuğba Şimşek Çelik, Başar Ersegün Çelik, Şükrü Talaş. Effect of post weld heat treatment on P9 and P11 steel weld joints produced by GTAW and SMAW methods. Int. Adv. Res. Eng. J. 2026 Aug. 1;10(2):178-89. doi:10.35860/iarej.1943003