Journal ArticleDOI
Influence of multipass pulsed gas metal arc welding on corrosion behaviour of a duplex stainless steel
Thiago Chehuan,Vanessa Dreilich,Kioshy Santos de Assis,Flavio Vieira Vasques De Sousa,Oscar R. Mattos +4 more
TLDR
In this paper, the effect of secondary austenite (γ2) on corrosion resistance of welded joints was investigated using optical microscopy and scanning electron microscopy, and the results were correlated with double loop electrochemical potentiodynamic reactivation (DL-EPR) and sulphide stress corrosion tests.About:
This article is published in Corrosion Science.The article was published on 2014-09-01. It has received 49 citations till now. The article focuses on the topics: Gas tungsten arc welding & Gas metal arc welding.read more
Citations
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Effect of welding processes and conditions on the microstructure, mechanical properties and corrosion resistance of duplex stainless steel weldments—A review
TL;DR: In this article, the effect of welding processes and conditions on microstructure, mechanical properties and corrosion resistance of duplex stainless steels and its various combinations on the basis of structure-property co-relationship are systematically highlighted.
Journal ArticleDOI
Influence of microstructure and elemental partitioning on pitting corrosion resistance of duplex stainless steel welding joints
TL;DR: In this article, the influence of microstructure and elemental partitioning on pitting corrosion resistance of duplex stainless steel joints welded by gas tungsten arc welding (GTAW) and flux-cored arc welding with different shielding gas compositions were studied by optical microscopy, electron backscatter diffraction, scanning electron microscopy (SEM) and electron probe microanalysis.
Journal ArticleDOI
Weldability, machinability and surfacing of commercial duplex stainless steel AISI2205 for marine applications – A recent review
TL;DR: In this article, a review of metallurgical, mechanical, and corrosion properties of commercial marine alloy duplex stainless steel AISI 2205 with special reference to its weldability, machinability, and surfacing is presented.
Journal ArticleDOI
Investigation on microstructure evolution and properties of duplex stainless steel joint multi-pass welded by using different methods
TL;DR: In this paper, the microstructure, impact toughness, and pitting corrosion resistance of duplex stainless steel (DSS) welding joints fabricated by using gas tungsten arc welding (GTAW) and flux-cored arc welding with different shielding gas compositions were investigated.
Journal ArticleDOI
Effects of nitrogen in shielding gas on microstructure evolution and localized corrosion behavior of duplex stainless steel welding joint
TL;DR: The effects of nitrogen addition in shielding gas on microstructure evolution and localized corrosion behavior of duplex stainless steel (DSS) welds were studied in this paper, where 2% N 2 to pure Ar shielding gas improved the localized corrosion resistance in the DSS welds, which was due to compensation for nitrogen loss and promoting nitrogen further solution in the austenite phases.
References
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Book
Welding Metallurgy and Weldability of Stainless Steels
TL;DR: In this article, the authors introduce phase diagrams and constitution diagrams for welding of stainless steel welds, as well as a Weldability Testing Appendix 1: Nominal Compositions of Stainless Steels Appendix 2: Etching Techniques for Stainless Steel Welds Author Index Subject Index
Journal ArticleDOI
Effect of weld metal chemistry and heat input on the structure and properties of duplex stainless steel welds
TL;DR: In this article, a low heat input process viz., EBW and another commonly employed process, gas tungsten-arc welding have been employed for welding of duplex stainless steels with and without nickel enhancement.
Journal ArticleDOI
The relationship between chromium nitride and secondary austenite precipitation in duplex stainless steels
TL;DR: In this paper, the early stages of secondary austenite precipitation in five duplex stainless steel (DSS) commercial alloys (UNS S32304, S32205, S32550, S32750, and S32760) have been investigated using scanning electron microscopy (SEM) and transmission electron microscope (TEM).
Journal ArticleDOI
Influence of isothermal phase transformations on toughness and pitting corrosion of super duplex stainless steel SAF 2507
Jan-Olof Nilsson,Anders Wilson +1 more
TL;DR: The SAF 2507, with a typical composition of ~25%Cr, 3·8%Mo, ~7%Ni, and 0·27%N, has been isothermally heat treated in the temperature range 700-1030°C for times... as mentioned in this paper.
Journal ArticleDOI
Effect of thermal cycles on the corrosion and mechanical properties of UNS S31803 duplex stainless steel
TL;DR: The microstructure and properties of UNS S31803 duplex stainless steel had been investigated following isothermally aging in a temperature range of 450-1000°C for 10min, which simulates a fairly long time relative to a weld thermal cycle as mentioned in this paper.
Related Papers (5)
The effect of large heat input on the microstructure and corrosion behaviour of simulated heat affected zone in 2205 duplex stainless steel
Study of the correlation between pitting corrosion and the component ratio of the dual phase in duplex stainless steel welds
D.H. Kang,H.W. Lee +1 more