Effect of solution treatment on the transformation behaviour of cold-rolled duplex stainless steels

Lai, J.K.L.; Wong, Kam-Fai; Li, D.J.

doi:10.1016/0921-5093(95)09863-1

Cited by 64 publications

(34 citation statements)

References 11 publications

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“…These have also been reported [8,9]. Figures 1-3 show the X-ray diffraction patterns of the duplex stainless steel samples.…”

Section: Metallographymentioning

confidence: 90%

Characterization and Corrosion Behaviour of Selected Duplex Stainless Steels in Acidic and Acidic-Chloride Solution

Olaseinde¹,

Merwe²,

Cornish³

2014

ACES

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The 2101, 2205 and 2507 are duplex stainless steels. They have two phases: austenite and ferrite. The metallurgical characterization was performed by means of Scanning Electron Microscopy (SEM) with EDX and X-ray diffractometry (XRD). The corrosion behaviour was evaluated by potentiodynamic tests. The corrosion tests were conducted with the aid of potentiostat. The SEM and XRD revealed phases of austenite and ferrite without any intermetallic phase. The elemental analysis of the phases showed that the elements partitioned more into the phases that they promoted. The corrosion resistance of 2507 was higher than 2205 and 2101 as it may be seen on the polarization curves. Comparing the two media, the following relation to their corrosion resistance: 2507 > 2205 > 2101 was established.

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“…These have also been reported [8,9]. Figures 1-3 show the X-ray diffraction patterns of the duplex stainless steel samples.…”

Section: Metallographymentioning

confidence: 90%

Characterization and Corrosion Behaviour of Selected Duplex Stainless Steels in Acidic and Acidic-Chloride Solution

Olaseinde¹,

Merwe²,

Cornish³

2014

ACES

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“…2) Decrease chromium content and increase nickel content in the ferrite as shown in Figure 4 [22]. Consequently, Lai et al [22] also demonstrated that this effect dramatically slows the formation of sigma phase.…”

Section: Amentioning

confidence: 92%

“…As discussed in the previous section, heat treatment at excessively high temperatures is undesirable but other variables in the heat treatment of DSS also need to be stringently Austenite Content [22] controlled. Figure 5 [22], shows the effect of annealing temperature on the relative amounts ferrite and austenite.…”

Section: Effect Of Other Heat Treatment Variablesmentioning

confidence: 99%

“…Figure 5 [22], shows the effect of annealing temperature on the relative amounts ferrite and austenite. Excessively high heat treatment temperature can cause heat treatment time to have an even greater effect on ferrite content.…”

Section: Effect Of Other Heat Treatment Variablesmentioning

confidence: 99%

“…A maximum solution annealing temperature must be specified because too high of a temperature can result in an increase of ferrite [22]. The modified ternary section of the Fe-Cr-Ni phase diagram illustrates this increase in ferrite with respect to high solution annealing temperatures.…”

Section: Effect Of Heat Treatment Temperaturementioning

confidence: 99%

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Final Report, Volume 2, The Development of Qualification Standards for Cast Duplex Stainless Steel

Russell¹,

Lundin²

2005

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FOREWARDIn the ASTM A923 round robin study, five laboratories conducted ASTM A923 Methods A & C on cast DSS material and the lab-to-lab reproducibility of the data was determined. Two groups of samples were sent to the participants. Group 1 samples were tested per ASTM A923 Method A, group 2 samples were tested by ASTM A923 Method C. Testing procedures for this round robin study were identical to those used in the ASTM A923 applicability study. Results from this round robin indicate that there is excellent lab-to-lab reproducibility of ASTM A923 with respect to cast DSS and that ASTM A923 could be expanded to cover both wrought and cast DSS.In the ASTM A923 study of the effectiveness of existing foundry solution annealing procedures for producing cast DSS without intermetallic phases, Ten heats of ASTM A890-4A (CD3MN) in the foundry solution annealed condition were tested per ASTM

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Effect of solution annealing on the microstructure evolution and corrosion behavior of 2205 duplex stainless steel

Zhang

Lin

et al. 2018

Materials & Corrosion

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The effects of solution annealing temperature and isothermal time on the phase composition evolution and corrosion behavior were investigated by employing energy dispersive spectrometry, potentiodynamic polarization measurements, electrochemical impedance spectroscopy, and Mott–Schottky analysis. The pit morphologies were observed by a digital VHX‐5000 with a visible 3D microscopy system. The highest corrosion resistance and most stable passive films were obtained for specimen solution annealing at 1075 °C. Additionally, the solution time had a significant influence on the microstructure evolution and corrosion resistance of the duplex stainless steel. The largest impedance values were exhibited, revealing the best stability with a superior corrosion resistance of the films. The depth and size of pits that occurred on austenite were smaller than those on ferrite. The phase proportion on the microstructure and redistribution of the alloying elements caused by duplex interdiffusion solution annealing simultaneously affected the density of defects and the stability of the passive film, which determined the corrosion resistance. However, the semiconductor properties of the passive films were not affected.

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Effect of solution treatment on the transformation behaviour of cold-rolled duplex stainless steels

Cited by 64 publications

References 11 publications

Characterization and Corrosion Behaviour of Selected Duplex Stainless Steels in Acidic and Acidic-Chloride Solution

Characterization and Corrosion Behaviour of Selected Duplex Stainless Steels in Acidic and Acidic-Chloride Solution

Final Report, Volume 2, The Development of Qualification Standards for Cast Duplex Stainless Steel

Effect of solution annealing on the microstructure evolution and corrosion behavior of 2205 duplex stainless steel

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