Study of the Distribution of Cr, Mo, Ni and N in  Ferrite and Austenite in Duplex Stainless Steels

Vicente, André de Albuquerque; Santos, Italo Leonardo dos; Botelho, Amilton Barbosa; Espinosa, Denise Crocce Romano; Tenório, Jorge Alberto Soares

doi:10.36348/sjet.2020.v05i04.005

Cited by 4 publications

(1 citation statement)

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“…Therefore, in this work, the N content of ferrite was taken as 0.05 wt.%, which was the saturation value of N in ferrite. The N content in austenite was calculated using N content measured in different positions and ferrite-austenite two-phase ratio [32,33].…”

Section: Discussionmentioning

confidence: 99%

Microstructure, mechanical and electrochemical properties of wire-arc additively manufactured duplex stainless steel

Liu

Yin

Zhang

et al. 2023

Science and Technology of Welding and Joining

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Wire-arc additively manufactured (WAAM) super duplex stainless steels (DSS) 2594 walls were fabricated to investigate the microstructure of different regions, including top, body and root as well as the influence of microstructure on mechanical and electrochemical properties. The microstructure was composed of ferrite and austenite with a few nitride precipitates. The ferrite content decreased from top to root. The average hardness increased slightly from top to root. The ultimate tensile strength of different regions varied slightly, comparable to that of the hotrolled plate. Compared with those in vertical direction, samples in the horizontal direction had higher strength and lower elongation. The corrosion resistance ranked as root ≈ body > hotrolled > top.

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Section: Discussionmentioning

confidence: 99%

Microstructure, mechanical and electrochemical properties of wire-arc additively manufactured duplex stainless steel

Liu

Yin

Zhang

et al. 2023

Science and Technology of Welding and Joining

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Effect of Nitrogen on the Precipitation and Pitting Corrosion Susceptibility of High Nitrogen 316SS Weld

Mannepalli,

Anne,

Ningshen

2024

Trans Indian Inst Met

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The present study aimed to understand the effect of nitrogen on the carbide precipitation and its influence on pitting corrosion of shielded metal arc welded high nitrogen 316SS weld. Nitrogen addition to weld reduces Cr availability sites in ferrite and enhances Cr in nearby austenite. Although higher carbon and continuous ferrite with ferritic austenitic mode exist, the changes in the degree of sensitisation were avoided at all the stages, and marginal changes in pitting potential (Epit) at 898 K/100 h and 998 K/24 h were observed. Nitrogen addition to weld further reduced the number of stable pits in ferrite and austenite, and the protectiveness of passive film was affected by nitrogen in ferrite and austenite, which affected pit propagation. This results in stable pits in ferrite and austenite, which affects pit propagation during thermal ageing.

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Effect of Ball to Powder Ratios on the Phase Transformation of Austenite and Ferrite During Ball Milling of SAF-2507 Super Duplex Stainless Steel Powders

Mahale,

Vasanth,

Sharath

et al. 2024

J. Inst. Eng. India Ser. D

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Study of the Distribution of Cr, Mo, Ni and N in  Ferrite and Austenite in Duplex Stainless Steels

Cited by 4 publications

References 0 publications

Microstructure, mechanical and electrochemical properties of wire-arc additively manufactured duplex stainless steel

Microstructure, mechanical and electrochemical properties of wire-arc additively manufactured duplex stainless steel

Effect of Nitrogen on the Precipitation and Pitting Corrosion Susceptibility of High Nitrogen 316SS Weld

Effect of Ball to Powder Ratios on the Phase Transformation of Austenite and Ferrite During Ball Milling of SAF-2507 Super Duplex Stainless Steel Powders

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