Oxidation Characteristics of Fe–18Cr–18Mn-Stainless Steel Alloys

Rawers, J. C.

doi:10.1007/s11085-010-9205-7

Cited by 14 publications

(3 citation statements)

References 32 publications

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“…However, even recently, relevant studies on the effects of manganese on corrosion resistance of steel have been comparatively minimal [2][3][4][5]. Particularly, the effects of manganese on corrosion resistance of steel during the exposure to chloride-containing environments have been reported inconsistently [4,[6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Effects of Alloying Elements (Cr, Mn) on Corrosion Properties of the High‐Strength Steel in 3.5% NaCl Solution

Kim

2018

Advances in Materials Science and Engineering

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Effects of chromium and manganese as alloying elements on corrosion resistance of carbon steel were examined using evaluation of corrosion resistance in 60°C NaCl solution with a weight loss test, polarization test, analysis of rust with X-ray diffractometer, Raman spectroscopy, transmission electron microscopy, energy dispersive spectroscopy, and electron energy loss spectroscopy.e weight loss behavior conformed to a typical parabolic law, and the oxidation state of iron in rust was higher along the fast pathway but was disproportionate to the distance from the alloy/AR interface. It suggests that the corrosion process of the alloys was controlled by transport of oxygen to the rust layer. e improvements in corrosion resistance of 18Mn and 18Mn5Cr resulted from both the refinement of grain in adherent rust (AR) and the increase of the amounts of goethite in nonadherent rust (NAR) by chromium and manganese. Especially, the effectiveness of chromium on corrosion resistance was also related to the refinements of grain in AR and the amounts of goethite in NAR. e Tafel extrapolation method was inadequate to measure the instantaneous corrosion rate of steels with various alloying elements and immersion periods because of the difference in electrochemical reduction rates of rust, depending on its constituent.

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Section: Introductionmentioning

confidence: 99%

Effects of Alloying Elements (Cr, Mn) on Corrosion Properties of the High‐Strength Steel in 3.5% NaCl Solution

Kim

2018

Advances in Materials Science and Engineering

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“…The use of different electrochemical techniques will allow better prediction of the processes involved in steel corrosion. Rawers studied six steels, namely a duplex phase (ferrite + austenite) steel, three austenite phase steels (FCC) and two austenite phase (FCC) + M23C6 carbide steels, 6 and could predict the phases presents in 18Cr-18mn steel using a Shauffler diagram. 7 The addition of nitrogen to steel promotes its properties.…”

Section: Introductionmentioning

confidence: 99%

Austenite and forging effects on 18Cr-18Mn stainless steel impedance

Reyes-Hernandez¹,

Torres-Islas

Serna³

et al. 2017

S.Afr.j.chem.

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The influence of the austenite phase (gamma iron dissolved in carbon) in the corrosion resistance of 18Cr-18Mn steel was studied. The percentage of austenite in the steel was calculated using the (Cr eq /Ni eq ) equation. In order to obtain the impedance value of the steel exposed to a corrosive saline environment, Bode diagrams were obtained at 8, 16 and 24 hours of exposure. The results obtained indicate that an increase of the austenite phase in the steel, also produces an increase in various steel properties, such as steel impedance and polarization resistance (Rp). On the other hand, it was observed that the impedance value of the forged 18Cr-18Mn steel increases when the steel is immersed in a saline solution.

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“…9,10 Various mechanisms of oxide film removal in high vacuum have been reported, such as volatilisation and carbon assisted deoxidisation. 11,12 However, spreadability and interface microstructure of Fe–Cr based filler metal and the mechanism of oxide film removal at high temperature are still insufficiently studied, especially in low vacuum or in air.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation on interface phenomena involving spreading of Fe–Cr based filler metal

Wang

Zhang

et al. 2016

Materials Science and Technology

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Fe–Cr based alloy emerges as an economic alternative to Ni based filler metal applied in brazing of steels and high temperature alloys; however, its spreadability and interface microstructure have been very poorly studied. In the present study, wettability and interface microstructure of new type Fe–Cr–Ni–Cu–P–Si filler metal are investigated at different pressures. The molten Fe–Cr–Ni–Cu–P–Si filler metal demonstrated good spreadability both in vacuum and in air. Fingering phenomenon at the spreading edge indicated the dissolution of base metal during spreading and insufficient diffusion. Reactions promoted the fragmentation and removal of the oxide film, and the dissolution of oxide and base metal further improved the spreadability. These mechanisms indicate potential for an excellent brazeability of Fe–Cr–Ni-Cu–P–Si filler metal.

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Oxidation Characteristics of Fe–18Cr–18Mn-Stainless Steel Alloys

Cited by 14 publications

References 32 publications

Effects of Alloying Elements (Cr, Mn) on Corrosion Properties of the High‐Strength Steel in 3.5% NaCl Solution

Effects of Alloying Elements (Cr, Mn) on Corrosion Properties of the High‐Strength Steel in 3.5% NaCl Solution

Austenite and forging effects on 18Cr-18Mn stainless steel impedance

Experimental investigation on interface phenomena involving spreading of Fe–Cr based filler metal

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