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Journal ArticleDOI

Duplex Stainless Steels: Brief History and Some Recent Alloys

Iris Alvarez-Armas
- 01 Jan 2008 - 
- Vol. 1, Iss: 1, pp 51-57
About: 
This article is published in Recent Patents on Mechanical Engineering.The article was published on 2008-01-01. It has received 156 citations till now. The article focuses on the topics: Intergranular corrosion.

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Passivation behavior and surface chemistry of 2507 super duplex stainless steel in artificial seawater: Influence of dissolved oxygen and pH

Zhongyu Cui, +10 more
- 15 Apr 2019 - 
TL;DR: In this paper, the authors investigated the passivation and film chemistry of 2507 super duplex stainless steel in modified artificial seawater (ASW) and found that passive film becomes denser from pre-passivation to passivation region and pores form accompanied with the increase of oxidized Fe after transpassivation.
Journal ArticleDOI

Study of the characteristics of duplex stainless steel activated tungsten inert gas welds

Tsann-Shyi Chern, +2 more
- 01 Jan 2011 - 
TL;DR: In this paper, the effects of specific fluxes used in the tungsten inert gas (TIG) process on surface appearance, weld morphology, angular distortion, mechanical properties, and microstructures when welding 6mm thick duplex stainless steel were investigated.
Journal ArticleDOI

Nitrogen loss and effects on microstructure in multipass TIG welding of a super duplex stainless steel

Vahid A. Hosseini, +3 more
- 15 May 2016 - 
TL;DR: In this paper, a super duplex stainless steel was autogenously TIG-welded with one to four bead-on-plate passes with low or high heat inputs using pure argon shielding gas.
Journal ArticleDOI

Erosion–corrosion behaviour of lean duplex stainless steels in 3.5% NaCl solution

S. Aribo, +3 more
- 01 Apr 2013 - 
TL;DR: In this article, the erosion-corrosion behavior of lean duplex stainless steels was studied in an aerated 3.5% NaCl environment. And the results showed that these alloys have higher resistance to pure erosion than an austenitic stainless steel, UNS S30403 and a duplex Stainless Steel (S32205), and better erosion-CORROSION resistance than AU stainless steel.
Journal ArticleDOI

Effects of Heat Input on Microstructure, Corrosion and Mechanical Characteristics of Welded Austenitic and Duplex Stainless Steels: A Review

Ghusoon Ridha Mohammed, +3 more
TL;DR: In this paper, the effects of input heat of different welding processes on the microstructure, corrosion, and mechanical characteristics of welded duplex stainless steel (DSS) are reviewed.
References
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Duplex stainless steels : microstructure, properties and applications

Robert N. Gunn
TL;DR: In this paper, the authors present a non-destructive testing of welds for service experience, based on the application of service experience in metallurgy and metallurgical applications.
Journal ArticleDOI

Duplex — A new generation of stainless steels for desalination plants

Jan Olsson, +1 more
- 05 Feb 2007 - 
TL;DR: In this article, the authors describe duplex stainless steels in technical terms and give reasons why they are such good alternatives to traditional austenitic grades of the 300-series for the construction of desalination plants.
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Microstructural transformations of heat affected zones in duplex steel welded joints

Jerzy Nowacki, +1 more
- 01 Jun 2006 - 
TL;DR: In this paper, the influence of the welding thermal conditions exemplified by heat input and heat treatment after welding on the structure of the heat affected zone (HAZ) UNS S31803 has been analyzed.
Journal ArticleDOI

Initial phase transformation diagram determination for the CD3MN cast duplex stainless steel

Eric M. Johnson, +3 more
- 01 May 2004 - 
TL;DR: In this article, a time-temperature-transformation diagram for cast CD3MN, a duplex stainless steel, was developed for 1 to 1000 min. Initial sigma phase precipitation was noted as low as 700 °C, with the nose of the transformation curve at approximately 800 °C and 100 min.
Journal ArticleDOI

Structure and properties of the heat-affected zone of duplex steels welded joints

Jerzy Nowacki, +1 more
- 15 May 2005 - 
TL;DR: In this paper, the secondary austenite was created as a product of ferrite decomposition α −→γ 2 as an effect of the welding thermal cycle and an aging following the welding process.