Corrosion behaviour of Fe–Mn–Si based shape memory steels trained by cold rolling

Söderberg, Outi; Liu, X.W; Yakovenko, P.; Ullakko, K.; Lindroos, V.K.

doi:10.1016/s0921-5093(99)00396-2

Cited by 59 publications

(41 citation statements)

References 6 publications

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“…These new nuances present a clear improvement of corrosion resistance. However, the cost of the alloy becomes sometimes less attractive for less interesting performances [5,6].…”

Section: Introductionmentioning

confidence: 99%

Surface treatment and corrosion behaviour of Fe–32Mn–6Si shape memory alloy

Charfi¹,

Bouraoui²,

Feki³

et al. 2008

Comptes Rendus. Chimie

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“…These new nuances present a clear improvement of corrosion resistance. However, the cost of the alloy becomes sometimes less attractive for less interesting performances [5,6].…”

Section: Introductionmentioning

confidence: 99%

Surface treatment and corrosion behaviour of Fe–32Mn–6Si shape memory alloy

Charfi¹,

Bouraoui²,

Feki³

et al. 2008

Comptes Rendus. Chimie

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“…In particular, the effect of nitrogenmicroalloying on the SME of Fe-Mn-Si based alloys has been investigated by several investigators. [9][10][11][12][13] Jiang et al 9,10) observed a slight improvement of SME in Fe-30Mn-6Si by adding 0.047 mass% nitrogen and found that nitrogen lowers the stacking fault probability P sf or, inversely, raises the stacking fault energy (SFE) of the alloy as determined by XRD measurements. Ullakko et al 11) reported that addition of 0.2-0.22 mass% nitrogen existing both in solid solution or precipitate improves the SME, which is attributed to the matrix strengthening, easier motion of the γ /ε interface and suppression of permanent slip by perfect dislocations.…”

Section: Introductionmentioning

confidence: 99%

“…They suggested that the increased SFE and the pinning of partial dislocations could be the reasons. Besides, Söderberg et al 13) carried out a study on the effect of thermomechanical training (by rolling) on the corrosion resistance of the Fe-Mn-Si based steels containing 0.12-0.23 mass% nitrogen by means of immersion tests and anodic polarization measurements.…”

Section: Introductionmentioning

confidence: 99%

Effect of Nitrogen Addition on Shape Memory Characteristics of Fe-Mn-Si-Cr Alloy

et al. 2002

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Nitrogen-microalloying and partial substitution of Cr for Mn have been employed to enhance the shape memory effect and corrosion resistance of Fe-Mn-Si based alloys. Typically, the tested alloys with nominal composition Fe-25Mn-6Si-5Cr-(0.12-0.14)N in mass% exhibit perfect shape recovery for a 3% pre-strain after only one cycle of thermomechanical training. The related mechanism has been discussed, taking account of the effect of nitrogen on the stacking fault energy (SFE) or the stacking fault probability (P sf ) of the alloy and the strengthening of the austenite matrix. Thermodynamic calculation and P sf measurement showed that the SFE increases with increasing N-content in the concentration range investigated, e.g. less than 0.3 mass%. Thus, the critical stress for the formation of stress-induced martensite increases with N-content. It is believed that the interstitial strengthening of the matrix by nitrogen predominantly contributes to the improvement of shape memory effect. Besides, nitrogen-microalloying remarkably improves the corrosion resistance of the alloys in aqueous solutions containing NaOH and NaCl, but not in HCl solution as indicated by the long-term immersion tests.

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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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Corrosion behaviour of Fe–Mn–Si based shape memory steels trained by cold rolling

Cited by 59 publications

References 6 publications

Surface treatment and corrosion behaviour of Fe–32Mn–6Si shape memory alloy

Surface treatment and corrosion behaviour of Fe–32Mn–6Si shape memory alloy

Effect of Nitrogen Addition on Shape Memory Characteristics of Fe-Mn-Si-Cr Alloy

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

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