Study Effect of Holding Time at Post Weld Heat Treatment (PWHT) on Joint Dissimilar Welding ASTM 335 P11 to ASTM 304L under Controlled Condition

Abstract:

Welding joint Austenitic stainless steels can undergo intergranular corrosion attack in some service conditions, such as oil refineries, petrochemical plants, and industrial furnaces operating at high temperatures (between 500°C and 675°C). This research focuses on fabricating dissimilar metal welds to avoid failure due to sensitization and investigate stress-relieved carbon steel by Post-weld heat treatment (PWHT). This work studies a dissimilar weld joint (DWJ) of ASTM 335 grade P11 joint to ASTM 304L and PWHT after welding. These welding processes are used in multi-pass gas tungsten arc welding (GTAW) using filler metal R309L. PWHT at temperatures of 550 °C with holding times of 40, 50, and 60 minutes and then slow cooling in atmospheric air temperature, It was used to compare the results holding time carbon steel ASTM A335 Gr. P11 while processing. Holding time at 50 minutes has the maximum result of PWHT with 182 HV and has a good distribution of perlite with fine grain and increasing holding time also increases formed carbide on the grain boundary of stainless steel 304L.

• Periodical: Key Engineering Materials (Volume 975)
• Pages: 9-20
• DOI: https://doi.org/10.4028/p-f9s6HS
• Online since: February 2024
• Authors: Sabandi Ismadi*, Winarto Winarto
• Keywords: Austenitic Stainless Steel, Block System, Dissimilar Welding, Heat Treatment, Microstructure

References

[1] A. Khalifeh, A. Dehghan, and E. Hajjari, "Dissimilar joining of AISI 304L/St37 steels by TIG welding process," Acta Metallurgica Sinica (English Letters), vol. 26, no. 6, pp.721-727, 2013.

DOI: 10.1007/s40195-013-0194-9

[2] M. P. Prabakaran and G. R. Kannan, "Effects of post-weld heat treatment on dissimilar laser welded joints of austenitic stainless steel to low carbon steel," International Journal of Pressure Vessels and Piping, vol. 191, p.104322, 2021/06/01/ 2021.

DOI: 10.1016/j.ijpvp.2021.104322

[3] M. Khan, M. W. Dewan, and M. Z. Sarkar, "Effects of welding technique, filler metal and post-weld heat treatment on stainless steel and mild steel dissimilar welding joint," Journal of Manufacturing Processes, vol. 64, pp.1307-1321, 2021.

DOI: 10.1016/j.jmapro.2021.02.058

[4] G. Dak and C. Pandey, "Experimental investigation on microstructure, mechanical properties, and residual stresses of dissimilar welded joint of martensitic P92 and AISI 304L austenitic stainless steel," International Journal of Pressure Vessels and Piping, vol. 194, p.104536, 2021.

DOI: 10.1016/j.ijpvp.2021.104536

[5] N. Arivazhagan, S. Singh, S. Prakash, and G. Reddy, "Investigation on AISI 304 austenitic stainless steel to AISI 4140 low alloy steel dissimilar joints by gas tungsten arc, electron beam, and friction welding," Materials & Design, vol. 32, no. 5, pp.3036-3050, 2011.

DOI: 10.1016/j.matdes.2011.01.037

[6] R. Kumar, A. Varma, Y. R. Kumar, S. Neelakantan, and J. Jain, "Enhancement of mechanical properties through modified post-weld heat treatment processes of T91 and Super304H dissimilar welded joint," Journal of Manufacturing Processes, vol. 78, pp.59-70, 2022.

DOI: 10.1016/j.jmapro.2022.04.008

[7] G. J. Zeman and D. L. Smith, "LOW CYCLE FATIGUE BEHAVIOR OF TYPES 304 AND 316 STAINLESS STEEL TESTED IN SODIUM AT 550 degree C," Nucl Technol, Article vol. 42, no. 1, pp.82-89, 1979.

DOI: 10.13182/NT79-A32164

[8] X. K. Zhu and Y. J. Chao, "Effects of temperature-dependent material properties on welding simulation," Computers & Structures, vol. 80, no. 11, pp.967-976, 2002/05/01/ 2002.

DOI: 10.1016/S0045-7949(02)00040-8

[9] S. Wang, Q. Ma, and Y. Li, "Characterization of microstructure, mechanical properties and corrosion resistance of dissimilar welded joint between 2205 duplex stainless steel and 16MnR," Materials & Design, vol. 32, no. 2, pp.831-837, 2011/02/01/ 2011.

DOI: 10.1016/j.matdes.2010.07.012

[10] K. D. Ramkumar et al., "Metallurgical and mechanical characterization of dissimilar welds of austenitic stainless steel and super duplex stainless steel–a comparative study," Journal of Manufacturing Processes, vol. 19, pp.212-232, 2015.

DOI: 10.1016/j.jmapro.2015.04.005

[11] J. C. Lippold and D. J. Kotecki, Welding metallurgy and weldability of stainless steels. 2005.

[12] J. Lippold, W. Baeslack, and I. Varol, "Heat-affected zone liquation cracking in austenitic and duplex stainless steels," Welding Journal(USA), vol. 71, no. 1, p.1, 1988.

[13] M. P. Dabir, A. Bahrami, M. Shamanian, and H. Saffari, "Effects of ER308L buttering and post-buttering heat treatment on the microstructure and mechanical properties of API 5L X65/AISI304 dissimilar joint," International Journal of Pressure Vessels and Piping, p.104702, 2022.

DOI: 10.1016/j.ijpvp.2022.104702