Understanding the pitting behavior of laser welds in different austenitic stainless steels: From the perspective of pitting initiation
Source abstract
Abstract
The distinct pitting behavior between the fusion zone of QN2109 laser welds and that of 317 L is investigated. The segregation of Mn is different in the two fusion zones due to differences in composition and cooling rate. Both welds contain residual δ-ferrite, with QN2109 displaying higher δ-ferrite content owing to its elevated Mn and N levels. The two welded joints exhibit diverse pitting initiation sites. QN2109 produces a secondary austenite prone to pitting during laser welding, whereas in the 317 L fusion zone, M 23C 6 is dissolved, significantly reducing the number of pitting sites.
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Research context
OpenAlex topics: Hydrogen embrittlement and corrosion behaviors in metals · Welding Techniques and Residual Stresses · Microstructure and Mechanical Properties of Steels
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (47)
Show source-provided references
1. Effect of thermal ageing on the corrosion behaviour of austenitic stainless steel welds in the simulated PWR primary water10.1016/j.corsci.2020.108730 ↗
2. Effects of heat input and cooling rate during welding on intergranular corrosion behavior of high nitrogen austenitic stainless steel welded joints10.1016/j.corsci.2020.108445 ↗
3. Improved corrosion performance of selective laser melted stainless steel 316L in the deep-sea environment10.1016/j.corcom.2021.09.002 ↗
4. Study of biocompatibility of medical grade high nitrogen nickel-free austenitic stainless steel in vitro10.1016/j.msec.2014.06.038 ↗
5. A review on nickel-free nitrogen containing austenitic stainless steels for biomedical applications10.1016/j.msec.2013.06.002 ↗
6. Comparative studies on microstructure evolution and corrosion resistance of 304 and a newly developed high Mn and N austenitic stainless steel welded joints10.1016/j.corsci.2021.109338 ↗
7. High-manganese and nitrogen stabilized austenitic stainless steel (Fe–18Cr–22Mn–0.65N): a material with a bright future for orthopedic implant devices10.1088/1748-605X/ac265e ↗
8. Effect of tensile deformation on microstructure and corrosion resistance of high nitrogen austenitic stainless steels
9. Investigation on intergranular corrosion susceptibility of a nitrogen-containing austenitic stainless steel QN2109 by optimized DL-EPR tests10.1108/ACMM-09-2022-2700 ↗
10. Research progress of laser welding under subatmospheric pressure10.1007/s00170-021-07488-3 ↗
11. Finite element analysis of laser welding: a state of art review10.1080/10426914.2012.709345 ↗
12. Laser welding under vacuum: a review10.3390/app7090909 ↗
13. Effect of magnetic field applied during laser-arc hybrid welding in improving the pitting resistance of the welded zone in austenitic stainless steel10.1016/j.corsci.2017.07.019 ↗
14. Study on corrosion mechanism of high-nitrogen steel laser-arc hybrid welded joints10.1088/2053-1591/abc372 ↗
15. Study on corrosion behavior of high-nitrogen steel laser-arc hybrid welding joints in different heat source action area10.1088/2053-1591/ab36d0 ↗
16. Effect of laser–arc hybrid welding on fracture and corrosion behaviour of AA6061-T6 alloy10.1016/j.msea.2010.12.021 ↗
17. A comparison of laser-metal inert gas hybrid welding and metal inert gas welding of high-nitrogen austenitic stainless steel10.1016/j.jmrt.2021.05.113 ↗
18. Initiation mechanism of pitting corrosion in weld heat affected zone of duplex stainless steel10.1016/j.corsci.2022.110278 ↗
19. Corrosion behavior of cold-rolled metastable Cr–Mn–Ni–N austenitic stainless steel in acidic NaCl solution10.1016/j.jmrt.2022.05.054 ↗
20. Effects of nitrogen element on microstructure and pitting corrosion resistance of duplex stainless steel welded joints
21. Comparison of corrosion behavior on laser welded austenitic stainless steel10.1016/j.matpr.2020.09.184 ↗
22. Evaluation of microstructure, mechanical properties and pitting corrosion in dissimilar of alternative low cost stainless steel grade 204Cu and 304 by GTA welding joint10.1016/j.jmrt.2020.03.034 ↗
23. Austenite-preferential corrosion attack in 316 austenitic stainless steel weld metals10.1016/j.matdes.2005.05.022 ↗
24. Effect of TIG welding on corrosion behavior of 316L stainless steel10.1016/j.matlet.2006.09.008 ↗
25. Evaluation of initial corrosion location in E316L austenitic stainless steel weld metals10.1016/j.matlet.2005.01.018 ↗
26. Pitting and galvanic corrosion behavior of laser-welded stainless steels10.1016/j.jmatprotec.2006.03.128 ↗
27. Relationship between the microstructure and local corrosion properties of weld metal in austenitic stainless steels10.1016/j.corsci.2020.108867 ↗
28. Pitting corrosion studies on fusion zone of shielded metal arc welded type 316LN stainless steel weldments10.1007/s12666-019-01775-0 ↗
29. Roles of different components of complex inclusion in pitting of 321 stainless steel: Induction effect of CaS and inhibition effect of TiN10.1016/j.corsci.2022.110692 ↗
30. Use of the potentiostatic pulse technique to study and influence pitting behavior of 317L stainless steel10.1149/1945-7111/ab7983 ↗
31. A comparative study on potentiodynamic and potentiostatic critical pitting temperature of austenitic stainless steels10.1002/maco.201709641 ↗
32. Influence of potentionstatic pulse technique on pitting behavior and pitting resistance of 317L stainless steel
33. Weldability of high nitrogen stainless steel10.2355/isijinternational.42.1334 ↗
34. Effects of laser welding on the microstructure evolution and corrosion resistance of a novel nitrogen-containing austenitic stainless steel QN210910.1016/j.jmrt.2023.03.012 ↗
35. Prediction of the δ to γ transition in austenitic stainless steels during laser treatment10.2355/isijinternational.38.71 ↗
36. Microstructural features contributing to macroscopic corrosion: the role of oxide inclusions on the corrosion properties of additively manufactured 316L stainless steel10.1016/j.corsci.2022.110354 ↗
37. A novel high-strength and high-ductility CoCrNi medium entropy alloy by Ti/Mo co-doping10.1016/j.matlet.2022.132929 ↗
38. Identification of interdendritic phases in Ni 30Cr weld metal with additions of tantalum and molybdenum using electron diffraction pattern and high-resolution scanning transmission electron microscopy image analysis10.1016/j.matchar.2020.110460 ↗
39. Effects of solution treatment and continuous cooling on σ-phase precipitation in a 2205 duplex stainless steel
40. Numerical-analysis of dissolution of alpha-phase in gamma/alpha/gamma-diffusion couples of the Fe-Cr-Ni system10.1016/0956-7151(93)90374-2 ↗
41. Understanding the pitting mechanism of super ferritic stainless steel in bromide solutions: the role of Ti/Nb–Mo precipitates with a core–shell structure10.1016/j.corsci.2022.110176 ↗
42. Mechanisms of inclusion-induced pitting of stainless steels: A review10.1016/j.jmst.2023.06.008 ↗
43. Premature corrosion failure of a 316L stainless steel plate due to the presence of sigma phase10.1016/j.engfailanal.2008.06.022 ↗
44. The σ phase formation in annealed UNS S31803 duplex stainless steel: Texture aspects10.1016/j.matchar.2007.11.005 ↗
45. Comparative study on sigma phase precipitation of three types of stainless steels: austenitic, superferritic and duplex10.1179/174328406X109230 ↗
46. Influence of the heat input and aging treatment on microstructure and mechanical properties of AISI 317 L steel weldments using 0020 robotic–pulsed GMAW10.1007/s00170-019-04621-1 ↗
47. Effects of grain boundary characteristics changing with cold rolling deformation on intergranular corrosion resistance of 443 ultra-pure ferritic stainless steel10.1016/j.corcom.2022.07.002 ↗