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An investigation on microstructure and pitting corrosion behavior of 316L stainless steel weld joint

  • Ping Zhu (a1), Xinyuan Cao (a2), Wei Wang (a2), Jiancang Zhao (a1), Yonghao Lu (a2) and Tetsuo Shoji (a3)...

Microstructure and pitting corrosion behavior of base metal (BM), heat-affected zone (HAZ), and weld zone (WZ) in the 316L stainless steel weld joint was investigated. The results indicated that WZ, including ferrite and austenite phases, was mainly composed of columnar dendrites, while BM and HAZ exhibited a full-austenite structure with low Σ coincidence site lattice boundaries especially twin boundary primarily. No obvious pitting occurred in WZ, while the millimeter-scale pits were observed in HAZ and BM after immersion test in 6% FeCl3 solution. HAZ had a lower pitting potential than WZ and BM, while not much difference in pitting potential was observed between WZ and BM. Dendrite-selected corrosion occurred in WZ, while grain boundary was the preferable site for pitting corrosion in HAZ and BM. Gain refinement and a decrease in twin boundary volume fraction promoted the pitting corrosion susceptible of HAZ.

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1. Lu, B.T., Chen, Z.K., Luo, J.L., Patchett, B.M., and Xu, Z.H.: Pitting and stress corrosion cracking behavior in welded austenitic stainless steel. Electrochim. Acta 50, 1391 (2005).
2. Kwok, C.T., Fong, S.L., Cheng, F.T., and Man, H.C.: Pitting and galvanic corrosion behavior of laser-welded stainless steels. J. Mater. Process. Technol. 176, 168 (2006).
3. Kim, S.J., Hong, S.G., and Oh, M.: Effect of metallurgical factors on the pitting corrosion behavior of super austenitic stainless steel weld in an acidic chloride environment. J. Mater. Res. 32, 1343 (2017).
4. Cardoso, J.L. and Vieira, R.C.A.: Pitting corrosion resistance of austenitic and superaustenitic stainless steels in aqueous medium of NaCl and H2SO4 . J. Mater. Res. 31, 1755 (2016).
5. Mary, N., Vignal, V., Oltra, R., and Coudreuse, L.: Advances in local mechanoelectrochemistry for detecting pitting corrosion in duplex steels. J. Mater. Res. 19, 3688 (2004).
6. Unnikrisnan, R., Idury, K.S.N.S., Ismail, T.P., Bhadauria, A., Shekhawat, S.k., Khatirkar, R.K., Sapate, S.G.: Effect of heat input on the microstructure, residual stresses and corrosion resistance of 304L austenitic stainless steel weldments. Mater. Charact. 93, 10 (2014).
7. Cui, Y., Lundin, C.D., and Hariharan, V.: Mechanical behavior of austenitic stainless steel weld metals with microfissures. J. Mater. Process. Technol. 171, 150 (2006).
8. Mudali, U.K. and Dayal, R.K.: Pitting corrosion resistance of as welded and thermally aged nitrogen containing type 316 stainless steel weld metal. Mater. Sci. Technol. 16, 393 (2013).
9. Cui, Y. and Lundin, C.D.: Austenite-preferential corrosion attack in 316 austenitic stainless steel weld metals. Mater. Des. 28, 324 (2007).
10. Nishimoto, K. and Ogawa, K.: Corrosion properties in weldments of stainless steels (1). Metallurgical factors affecting corrosion properties. Weld. Int. 13, 845 (2010).
11. Dadfar, M., Fathi, M.H., Karimzadeh, F., Dadfar, M.R., and Saatchi, A.: Effect of TIG welding on corrosion behavior of 316L stainless steel. Mater. Lett. 61, 2343 (2007).
12. Garcia, C., Martin, F., Tiedra, P.D., Blanco, Y., and Lopez, M.: Pitting corrosion of welded joints of austenitic stainless steels studied by using an electrochemical minicell. Corros. Sci. 50, 1184 (2008).
13. Durgutlu, A.: Experimental investigation of the effect of hydrogen in argon as a shielding gas on TIG welding of austenitic stainless steel. Mater. Des. 25, 19 (2004).
14. Lothongkum, G., Viyanit, E., and Bhandhubanyong, P.: Study on the effects of pulsed TIG welding parameters on delta-ferrite content, shape factor and bead quality in orbital welding of AISI 316L stainless steel plate. J. Mater. Process. Technol. 110, 233 (2001).
15. Sakthivel, T., Vasudevan, M., Laha, K., Parameswaran, P., Chandravathi, K.S., Mathew, M.D., and Bhaduri, A.K.: Creep rupture strength of activated-TIG welded 316L(N) stainless steel. J. Nucl. Mater. 413, 36 (2011).
16. Pascual, M., Salas, F., Carcel, F.J., and Perales, M.: TIG AISI-316 welds using an inert gas welding chamber and different filler metals: Changes in mechanical properties and microstructure. Rev. Metal. 46, 493 (2010).
17. Ha, H.Y., Jang, M.H., Lee, T.H., and Moon, J.: Understanding the relation between phase fraction and pitting corrosion resistance of UNS S32750 stainless steel. Mater. Charact. 106, 338 (2015).
18. Nascimento, A.M.D., Ierardi, M.C.F., Kina, A.Y., and Tavares, S.S.M.: Pitting corrosion resistance of cast duplex stainless steels in 3.5% NaCl solution. Mater. Charact. 59, 1736 (2008).
19. Xu, C., Zhang, Y., Cheng, G., and Zhu, W.: Pitting corrosion behavior of 316L stainless steel in the media of sulphate-reducing and iron-oxidizing bacteria. Mater. Charact. 59, 245 (2008).
20. Li, K., Li, D., Liu, D., Pei, G., and Sun, L.: Microstructure evolution and mechanical properties of multiple-layer laser cladding coating of 308L stainless steel. Appl. Surf. Sci. 340, 143 (2015).
21. Ming, H., Zhang, Z., Wang, J., Han, E.H., and Ke, W.: Microstructural characterization of an SA508–309L/308L–316L domestic dissimilar metal welded safe-end joint. Mater. Charact. 97, 101 (2014).
22. Ha, H.Y., Jang, M.H., and Lee, T.H.: Influences of Mn in solid solution on the pitting corrosion behaviour of Fe–23 wt% Cr-based alloys. Electrochim. Acta 191, 864 (2016).
23. Sabooni, S., Karimzadeh, F., Enayati, M.H., Ngan, A.H.W., and Jabbari, H.: Gas tungsten arc welding and friction stir welding of ultrafine grained AISI 304L stainless steel: Microstructural and mechanical behavior characterization. Mater. Charact. 109, 138 (2015).
24. Silva, C.C., Miranda, H.C.D., Sant’Ana, H.B.D., and Farias, J.P.: Microstructure, hardness and petroleum corrosion evaluation of 316L/AWS E309MoL-16 weld metal. Mater. Charact. 60, 346 (2009).
25. Abe, H. and Watanabe, Y.: Low-temperature aging characteristics of type 316L stainless steel weld: Dependence on solidification mode. Metall. Mater. Trans. A 39, 1392 (2008).
26. Takalo, T., Suutala, N., and Moisio, T.: Austenitic solidification mode in austenitic stainless steel welds. Metall. Mater. Trans. A 10, 1173 (1979).
27. Zhu, Z.Y., Deng, C.Y., Wang, Y., Yang, Z.W., Ding, J.K., and Wang, D.P.: Effect of post weld heat treatment on the microstructure and corrosion behavior of AA2219 aluminum alloy joints welded by variable polarity tungsten inert gas welding. Mater. Des. 65, 1075 (2015).
28. Baudin, T., Etter, A.L., and Penelle, R.: Annealing twin formation and recrystallization study of cold-drawn copper wires from EBSD measurements. Mater. Charact. 58, 947 (2007).
29. Jin, Y., Lin, B., Bernacki, M., Rohrer, G.S., Rollett, A.D., and Bozzolo, N.: Annealing twin development during recrystallization and grain growth in pure nickel. Mater. Sci. Eng., A 597, 295 (2014).
30. Tsai, W.T. and Chen, J.R.: Galvanic corrosion between the constituent phases in duplex stainless steel. Corros. Sci. 49, 3659 (2007).
31. Zhou, Y., Aust, K.T., Erb, U., and Palumbo, G.: Effects of grain boundary structure on carbide precipitation in 304L stainless steel. Scr. Mater. 45, 49 (2001).
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Journal of Materials Research
  • ISSN: 0884-2914
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