Effect of sigma phase on the wear behavior of a super duplex stainless steel

Fargas, Gemma; Mestra, A.; Mateo, A.

doi:10.1016/j.wear.2013.04.010

Cited by 47 publications

(30 citation statements)

References 26 publications

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“…They offer higher toughness and better weldability than pure ferritic stainless steels and higher strength, better corrosion resistance than pure austenitic stainless steels [1][2][3][4]. Hence they are attractive material for applications where these properties are desired like in off-shore industries, food industries, chemical industries, paper industries [5,6], nuclear industries [7,8] and in structural applications as well [9,10]. DSS can be also used as a material for water tankers to supply fresh drinking water in military areas where fresh water is scarce [11].…”

Section: Introductionmentioning

confidence: 99%

Effect of Intermetallic Phases on Corrosion Behavior and Mechanical Properties of Duplex Stainless Steel and Super-Duplex Stainless Steel

Paulraj¹,

Garg²

2015

Adv. Sci. Technol. Res. J.

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Duplex Stainless Steels (DSS) and Super Duplex Stainless Steel (SDSS) have excellent integration of mechanical and corrosion properties. However, the formation of intermetallic phases is a major problem in their usage. The mechanical and corrosion properties are deteriorated due to the presence of intermetallic phases. These phases are induced during welding, prolonged exposure to high temperatures, and improper heat treatments. The main emphasis of this review article is on intermetallic phases and their effects on corrosion and mechanical properties. First the effect of various alloying elements on DSS and SDSS has been discussed followed by formation of various intermetallic phases. The intermetallic phases affect impact toughness and corrosion resistance significantly. Their deleterious effect on weldments has also been reviewed.

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Section: Introductionmentioning

confidence: 99%

Effect of Intermetallic Phases on Corrosion Behavior and Mechanical Properties of Duplex Stainless Steel and Super-Duplex Stainless Steel

Paulraj¹,

Garg²

2015

Adv. Sci. Technol. Res. J.

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“…However, the mechanical and corrosion performance of SDSS can be degraded by undesired phases such as coarse grains and extensive precipitation from the melting and rapid solidification in fusion welding processes. In particular, an inappropriate phase called the sigma phase is fatal to the mechanical performance because it renders SDSS brittle [8][9][10]. SDSS contains a higher alloying element content than DSS and has a superior corrosion resistance and mechanical performance.…”

Section: Introductionmentioning

confidence: 99%

Low-Temperature Mechanical Behavior of Super Duplex Stainless Steel with Sigma Precipitation

Kim

Kang

Kim

et al. 2015

Metals

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Experimental studies in various aspects have to be conducted to maintain stable applications of super duplex stainless steels (SDSS) because the occurrence rate of sigma phase, variable temperature and growth direction of sigma phase can influence mechanical performances of SDSS. Tensile tests of precipitated SDSS were performed under various temperatures to analyze mechanical and morphological behavior.

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“…Lu et al [9] showed that the presence of σ phase in a corrosive environment reduces wear rates of ferritic stainless steels. Improvements in the wear resistance of duplex stainless steels associated with the presence of σ phase, were observed, inter alia, by Wang et al [10] and Fargas et al [11].…”

Section: Introductionmentioning

confidence: 76%

Experimental and Thermodynamic Study of Selected in-Situ Composites from the Fe-Cr-Ni-Mo-C System

Wieczerzak

Bała

Dziurka

et al. 2016

Archives of Metallurgy and Materials

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The aim of the study was to synthesize and characterize the selected in-situ composites from the Fe-Cr-Ni-Mo-C system, additionally strengthened by intermetallic compounds. The project of the alloys was supported by thermodynamic simulations using Calculation of Phase Diagram approach via Thermo-Calc. Selected alloys were synthesized in an arc furnace in a high purity argon atmosphere using a suction casting unit. The studies involved a range of experimental techniques to characterize the alloys in the as-cast state, including optical emission spectrometry, light microscopy, scanning electron microscopy, electron microprobe analysis, X-ray diffraction and microhardness tests. These experimental studies were compared with the Thermo-Calc data and high resolution dilatometry. The results of investigations presented in this paper showed that there is a possibility to introduce intermetallic compounds, such as χ and σ, through modification of the chemical composition of the alloy with respect to Ni eq and Cr eq . It was found that the place of intermetallic compounds precipitation strongly depends on matrix nature. Results presented in this paper may be successfully used to build a systematic knowledge about the group of alloys with a high volume fraction of complex carbides, and high physicochemical properties, additionally strengthened by intermetallic compounds.

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Effect of sigma phase on the wear behavior of a super duplex stainless steel

Cited by 47 publications

References 26 publications

Effect of Intermetallic Phases on Corrosion Behavior and Mechanical Properties of Duplex Stainless Steel and Super-Duplex Stainless Steel

Effect of Intermetallic Phases on Corrosion Behavior and Mechanical Properties of Duplex Stainless Steel and Super-Duplex Stainless Steel

Low-Temperature Mechanical Behavior of Super Duplex Stainless Steel with Sigma Precipitation

Experimental and Thermodynamic Study of Selected in-Situ Composites from the Fe-Cr-Ni-Mo-C System

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