Corrosion investigations of nanocrystalline iron based alloy

Szewieczek, D.; Tyrlik-Held, J.; Paszenda, Z.

doi:10.1016/s0924-0136(97)00480-9

Cited by 32 publications

(19 citation statements)

References 11 publications

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“…The excellent corrosion resistance of the Ti 40 Zr 24 V 12 Cu 5 Be 19 amorphous alloy was generally attributed to the two aspects: structure and composition. [14][15][16][17] It was noteworthy that for the as-cast ingot of in situ MGMCs Ti 40 Zr 24 V 12 Cu 5 Be 19 , the compositions differ considerably between the crystalline dendrites and amorphous matrices. For instance, the Energy Dispersive Spectrometer (EDS) analysis of the samples showed that the composition of the dendrites is Ti 28.2 Zr 52.7 V 1.3-Cu 17.8 (at.…”

Section: B Electrochemical Measurementsmentioning

confidence: 99%

Corrosion Behavior of Ti-Based In Situ Dendrite-Reinforced Metallic Glass Matrix Composites in Various Solutions

Yang

Tian

Lan

et al. 2014

Metall Mater Trans A

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The electrochemical corrosion behaviors of Ti 40 Zr 24 V 12 Cu 5 Be 19 in situ dendrite-reinforced metallic glass matrix composites (MGMCs) were investigated by potentiodynamic polarization experiments and electrochemical impedance spectroscopy in acidic, salty, and alkaline solutions. Ti 40 Zr 24 V 12 Cu 5 Be 19 in situ dendrite-reinforced MGMCs have an impressive corrosion resistance in strong acidic environment, while their performance was not so great in strong alkaline environment. Further immersion test in same solutions revealed similar chemical corrosion behaviors. XRD and SEM examinations were conducted to check the structure and surface modification of the material during the corrosion process. EDS test indicated that the amorphous matrices, which show excellent corrosion resistance, have a considerable composition variation from its crystalline dendrites counterpart.

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Section: B Electrochemical Measurementsmentioning

confidence: 99%

Corrosion Behavior of Ti-Based In Situ Dendrite-Reinforced Metallic Glass Matrix Composites in Various Solutions

Yang

Tian

Lan

et al. 2014

Metall Mater Trans A

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“…The alloys of the nominal composition of FeCuNbSiB, FeMBCu (M = Zr, Nb, Mo) were investigated. The methods like mass loss measurement, potentiometry, gravimetry, XRD and magnetic measurements have been employed to perform the corrosion analysis [1][2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Atmospheric corrosion of different Fe-based alloys in nanocrystalline state

2005

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Nanocrystalline Fe-based alloys are interesting for their soft magnetic properties. Because these alloys are potentially applicable in outdoor-working components, their corrosion behaviour requires careful analysis. This work presents the results of the atmospheric corrosion tests in industrial and rural environments performed for up to 6 months. We compared the corrosion behaviour of two different compositions of NANOPERM-type alloys: FesT.hZr6.hB6 and Fe76MosCulBx5 with classical FINEMET alloys of the nominal composition of Fe73.5CulNb3Si13.5B9 type. The techniques of Mhssbauer spectroscopy, conversion electron M6ssbauer spectroscopy, X-ray diffraction and transmission electron microscopy have been employed to compare their corrosion rate, characterize corrosion products and inspect the structural changes of the nanocrystalline structure. It was found that the Si-containing FINEMET alloys are the most corrosion-resistant whereas worse corrosion properties were observed for molybdenum-containing Fe76 Mos Cul B15 alloy. The corrosion product formed on the surface of NANOPERM-type alloys showed a needlelike morphology and a poor crystalline order and has been identified as lepidocrocite, -~-FeOOH.PACS: 76.80. § 75.50.Cc

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“…Some nanocrystalline alloys, e.g. Fe-Cu-Nb-Si-B, were found to have even higher corrosion resistance than their homogeneous amorphous counterpart [31,32] . According to the above mentioned opinion, it can be deduced that the underlying subsurface layer with single crystalline phase (Al(Cr,Fe) 2 phase) should possess the same corrosion as that of amorphous structure.…”

Section: Resultsmentioning

confidence: 99%

Corrosion behavior of amorphous/nanocrystalline Al-Cr-Fe film deposited by double glow plasmas technique

Chen

Tao

et al. 2008

Sci. China Ser. E-Technol. Sci.

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In order to improve the corrosion resistance of AZ31 magnesium alloy, the amorphous/nanocrystal Al-Cr-Fe film has been successfully prepared on AZ31 magnesium alloy by double glow plasma technology. The amorphous/nanocrystalline consists of two different regions, i.e., an amorphous layer on outmost surface and an underlying lamellar nanocrystalline layer with a grain size of less than 10 nm. The corrosion behavior of amorphous/nanocrystalline Al-Cr-Fe film in 3.5% NaCl solution is investigated using an electrochemical polarization measurement. Compared with the AZ31 magnesium alloy, the amorphous/nanocrystalline Al-Cr-Fe film exhibits more positive corrosion potentials and lower corrosion current densities than that of AZ31 magnesium alloy. XPS measurement reveals that the passive film formed on the Al-Cr-Fe film after the anodic polarization tests is strongly enriched in Cr 2 O 3 , Fe 2 O 3 and Al 2 O 3 at outer surface of the film and in the inner layer consists of Cr 2 O 3 , FeO and Al 2 O 3 .double glow sputtering, Al-Cr-Fe film, AZ31 magnesium alloy, corrosion behavior, amorphous/nanocrystal

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Corrosion investigations of nanocrystalline iron based alloy

Cited by 32 publications

References 11 publications

Corrosion Behavior of Ti-Based In Situ Dendrite-Reinforced Metallic Glass Matrix Composites in Various Solutions

Corrosion Behavior of Ti-Based In Situ Dendrite-Reinforced Metallic Glass Matrix Composites in Various Solutions

Atmospheric corrosion of different Fe-based alloys in nanocrystalline state

Corrosion behavior of amorphous/nanocrystalline Al-Cr-Fe film deposited by double glow plasmas technique

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