Corrosion behaviors according to the welding process of superduplex stainless steel welded tubes: Gas tungsten arc welding vs. laser beam welding
Source abstract
Abstract
The corrosion behaviors of superduplex stainless steel welded tubes in an acidic brine environment were examined by comparing the welds formed by the two welding processes of tungsten inert gas (TIG) welding and laser beam (LB) welding. In contrast to TIG-welds with a larger bead size, higher oxide inclusion , and lower N content, the poor corrosion resistance of as-welded LB-weld sample recovered after post-weld heat treatment (PWHT) by restoring the phase balance and dissolving the deleterious inhomogeneities around the fusion line. The key metallurgical factor controlling the corrosion behavior of LB-welded steel tubes, and underlying corrosion mechanism were also provided.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Hydrogen embrittlement and corrosion behaviors in metals · Corrosion Behavior and Inhibition · Welding Techniques and Residual Stresses
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (40)
Show source-provided references
1. Pitting and crevice corrosion of superaustenitic stainless steels10.1002/maco.200303746 ↗
2. Cathodic and anodic stress corrosion cracking of a new high-strength CrNiMnMoN austenitic stainless steel10.3390/met10111541 ↗
3. Pitting corrosion characteristic depending on welding pass and heat input of GTA weldment on superaustenitic stainless steel(UNS S32654)10.5781/JWJ.2020.38.6.2 ↗
4. Corrosion behaviors of super austenitic stainless steel weld joints in the as-welded and post weld heat treated states10.3365/KJMM.2021.59.6.374 ↗
5. Effect of heat input on the microstructure and properties of dissimilar weld joint between incoloy 28 and superaustenitic stainless steel10.1007/s40195-014-0058-y ↗
6. Microstructure of 2205 duplex stainless steel joint in submerged arc welding by post weld heat treatment10.1016/j.jmapro.2013.06.013 ↗
7. Identification of sigma and chi phase in duplex stainless steels10.1016/j.matchar.2015.12.004 ↗
8. Kinetics of sigma phase formation in a duplex stainless steel10.1590/S1516-14392009000300012 ↗
9. Welding of large thickness super duplex stainless steel: microstructure and properties10.3390/met11081184 ↗
10. Characterization of the microstructure, mechanical properties, and corrosion resistance of a friction-stir-welded joint of hyper duplex stainless steel10.3390/met7040138 ↗
11. Influence of the grain size on deleterious phase precipitation in superduplex stainless steel UNS S3275010.1016/j.matchar.2008.08.007 ↗
12. Influence of the phase balance and cooling conditions on the microstructure and corrosion behavior of solution-treated 1.4462 duplex stainless steel10.1088/2053-1591/ab6f3a ↗
13. Pathways to improve the austenite-ferrite phase balance during resistance spot welding of duplex stainless steels10.1080/13621718.2018.1468949 ↗
14. Effect of post-weld heat treatment on the corrosion behavior of resistance spot welded super duplex stainless UNS S3275010.20964/2019.03.14 ↗
15. Effect of heat treatment on corrosion behavior of duplex stainless steel 2507 in artificial saliva10.1007/s11041-019-00375-5 ↗
16. Corrosion behaviors of laser-welded super duplex stainless steel(UNS S32506) tube with post-weld heat treatment conditions
17. ASTM G48, Standard Test Methods for Pitting and Crevice Corrosion Resistance of Stainless Steels and Related Alloys by Use of Ferric Chloride Solution, ASTM International, West, Conshohocken, PA, USA, 2015.
18. Effects of post weld heat treatment conditions on localized corrosion resistance of super duplex stainless steel tube used for thermal power plant applications
19. ASTM G150, Standard Test Method for Electrochemical Critical Pitting Temperature Testing of Stainless Steels, ASTM International, 2004.
20. Solubility of nitrogen in ferrite; the Fe-N phase diagram10.3139/146.110968 ↗
21. Effect of N2-mixed shielding gas on the ferrite number and microstructure of 304 multi-pass GTAW joint10.1007/s12046-020-01429-8 ↗
22. On the crystal structure of Cr2N precipitates in high-nitrogen austenitic stainless steel. III. Neutron diffraction study on the ordered Cr2N superstructure10.1107/S0108768106034173 ↗
23. Formation of chromium nitride and intragranular austenite in a super duplex stainless steel10.1007/s11661-019-05489-2 ↗
24. The relationship between chromium nitride and secondary austenite precipitation in duplex stainless steels10.1007/s11661-003-0304-9 ↗
25. An in-depth exploration of the electrochemical oxygen reduction reaction (ORR) phenomenon on carbon-based catalysts in alkaline and acidic mediums10.3390/catal12070791 ↗
26. A review of oxygen reduction mechanisms for metal-free carbon-based electrocatalysts
27. In-situ observation of the fusion zone under different high heat input for hot-rolled ship plate steel with 0.012yttrium10.1088/2053-1591/ab528f ↗
28. Laboratory study on oxide inclusions in high-strength low-alloyed steel refined by slag with basicity 2-510.1515/htmp-2014-0116 ↗
29. Influence of manufacturing conditions on inclusion characteristics and mechanical properties of FeCrNiMnCo alloy10.3390/met10101286 ↗
30. Investigation on solid-state phase transformations in a 2510 duplex stainless steel grade10.3390/met10070967 ↗
31. On the Nitrogen diffusion in a duplex stainless steel10.1590/1516-1439.337714 ↗
32. High temperature solution nitriding of stainless steel; current status and future trends10.3139/105.110406 ↗
33. Investigation on microstructure and properties of duplex stainless steel welds by underwater laser welding with different shielding gas
34. Physical and kinetic simulation of nitrogen loss in high temperature heat affected zone of duplex stainless steels10.1016/j.mtla.2019.100325 ↗
35. Effect of nitrogen on corrosion behavior of 28Cr-7Ni duplex and microduplex stainless steels in air-saturated 3.5 wt% NaCl solution10.1016/j.corsci.2004.11.017 ↗
36. Effect of nitrogen on crevice corrosion and repassivation behavior of austenitic stainless steel10.2320/matertrans.MRA2007273 ↗
37. Effect of microstructure on the localized corrosion of Fe-Cr-Mn-N stainless steels
38. Effect of post-weld heat treatment on microstructure evolution and pitting corrosion resistance of electron beam-welded duplex stainless steel10.1016/j.corsci.2018.06.030 ↗
39. Influence of microstructure and elemental partitioning on pitting corrosion resistance of duplex stainless steel welding joints10.1016/j.apsusc.2016.10.047 ↗
40. Structure and mechanical properties of duplex stainless steels