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Journal ArticleDOI

Effect of Intermetallic and Secondary Phases on Dry and Wet Sliding Wear Behavior of Super Duplex Stainless Steel

21 Jan 2020-Tribology Transactions (Taylor & Francis)-Vol. 63, Iss: 3, pp 403-414
TL;DR: In this paper, the effects of intermetallic and secondary phases on the sliding wear behavior of super duplex stainless steel 2507 against bearing steel torsion was quantified.
Abstract: The purpose of this investigation was to quantify the effects of intermetallic and secondary phases on the sliding wear behavior of super duplex stainless steel 2507 against bearing steel t...
Citations
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Journal ArticleDOI
TL;DR: In this paper, the authors present an overview of the dissimilar welded joint's microstructure and mechanical behavior, and the effect of intermetallic phases such as sigma phase, FCC carbides like (M23C6, M6C, and M7C3), laves phase, R and χ-phase, Z-phase on the mechanical property of dissimilar welding joints of each material are reviewed in detail.

64 citations

Journal ArticleDOI
TL;DR: In this article, the effect of filler metal on solidification, microstructure, and mechanical properties of the dissimilar weld between super duplex stainless 2507 and high strength low alloy API X70 pipeline steel was investigated.
Abstract: In the present experimental work, an attempt has been made to investigate the effect of filler metal on solidification, microstructure, and mechanical properties of the dissimilar weld between super duplex stainless 2507 and high strength low alloy API X70 pipeline steel. This joint is widely used in offshore hydrocarbon drilling risers and oil-gas transportation pipelines. Welds have been fabricated by the gas tungsten arc welding process using super duplex 2594 and austenitic 309L grade filler. A comparative assessment of both the fillers has been done by investigating multiple aspects of weld's structural integrity. 309L fillers weld has skeletal ferrite morphology, whereas 2594 filler solidifies with precipitation of multiple reformed austenites in the ferrite matrix. Lower width unmixed zone is formed on the API X-70 side in 2594 filler as compared to 309L. The tensile and impact strength of 309L filler weld is superior to 2594 filler. Precipitation of reformed austenite in the weld zone leads to lower hardness in 2594 as compared to skeletal ferrite dominated 309L weld zone. High chromium concentration in the weld zone results in superior pitting corrosion resistance of 2594 filler.

29 citations

Book ChapterDOI
28 Sep 2006

17 citations

Journal ArticleDOI
TL;DR: In this article, the reformed austenite in the super duplex stainless /pipeline steel dissimilar weld, fabricated using gas tungsten arc welding process (GTAW) employing Super duplex filler (ER 2594), was investigated.

17 citations

Journal ArticleDOI
TL;DR: In this article, the effect of CaO-CaF2-TiO2-SiO2 based electrode coating constituents and their binary, tertiary interactions on the weld metal chemistry of offshore structure was reported.

14 citations

References
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Journal ArticleDOI
TL;DR: The corrosion resistant group of ferritic austenitic duplex steels showed a rather complex precipitation and transformation behavior that affects the mechanical and corrosive properties as discussed by the authors, and most critical concerning the change of properties are the precipitations in the temperature field of 650-950°C.

382 citations

Journal ArticleDOI
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.

181 citations

Journal ArticleDOI
TL;DR: In this paper, the authors investigated the precipitation of intermetallic phases, especially the chi-phase, in a 45N (type UNS S31803) duplex stainless steel through aging heat-treatments carried out at 700 and 750°C.

173 citations

Journal ArticleDOI
TL;DR: In this article, the wear resistance of AISI 630 (UNS S17400) or 17-4 PH stainless steel hardened by precipitation hardening or aging at various hardness levels was investigated.

150 citations