Characterization of laser-nitrided iron and sputtered iron nitride films

Schaaf, Peter; Illgner, C.; Niederdrenk, Matthias; Lieb, Klaus

doi:10.1007/bf02146315

Cited by 75 publications

(28 citation statements)

References 31 publications

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“…The magnetically split components are refined by two sextets which belong to martensite [8,9]. The occurrence of these phases in the rapidly solidified powder particles is confirmed also by XRD [3].…”

Section: Resultsmentioning

confidence: 99%

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Austenite-to-martenzite transformations in ledebourite-type powder steels

Miglierini

2005

Czech J Phys

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Hypereutectic C-Cr-V (Ch3F12) and hypoeutectic C-Cr-Mo-V (Ch12MF4) iron based alloys are investigated in the as-prepared rapidly solidified powder forms separated into several granulometric fractions as well as after heat treatments performed for one hour at temperatures up to 700~ Employing transmission Mhssbauer spectrometry and conversion electron Mhssbauer spectrometry as principal methods of analyses, particular crystallographic phases are identified and temperature induced structural transformations between them are discussed. Martensitic transformation starts at 500~ and 560~ for Ch3F12 and Ch12MF4 alloy, respectively. : 76.80.+y, 64.70. p PACS

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Section: Resultsmentioning

confidence: 99%

“…The central peaks in MSssbauer spectra consist of one singlet and one doublet which are assigned to austenite [8,9]. The magnetically split components are refined by two sextets which belong to martensite [8,9].…”

Section: Resultsmentioning

confidence: 99%

Austenite-to-martenzite transformations in ledebourite-type powder steels

Miglierini

2005

Czech J Phys

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“…This fact has raised some controversy about the real existence of the γ phase. [6,14] Table 2 gives the fitting parameters in terms of a singlet (δ = 0.11 mm/s) and a doublet (δ = 0.20 mm/s; = 0.47 mm/s), which account for the presence of the γ phase. In this case, the singlet corresponds to Fe atoms surrounded by four nitrogen atoms (no vacancies) and the doublet would be associated with the presence of Fe sites with vacancies in the first coordination sphere.…”

Section: X-ray Diffraction and Integral Conversion Electron Mössbauermentioning

confidence: 99%

Synthesis and characterization of iron nitrides. An XRD, Mössbauer, RBS and XPS characterization

Prieto

Marco

Sanz

2008

Surface & Interface Analysis

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In this work, we demonstrate the capability of a dual ion beam sputtering method to obtain iron nitride thin films, FeN x , in a wide composition range (0.1 < x < 0.5) and structures (α , γ , ε, ζ , γ and γ ) by controlling the deposition conditions (i.e. deposition rate, flux and energy of the assisting nitrogen ions and substrate temperature). The average composition of the films has been determined by resonant RBS to enhance the nitrogen signal, whereas the structural characterization and the phase identification have been carried out by X-ray diffraction (XRD) and Mössbauer spectroscopy. We present a thorough and complementary analysis of the XRD and Mössbauer data as a function of the composition of the film for all the iron nitride phases. Furthermore, it is shown that the iron Auger parameter (AP) increases up to 0.8 eV with respect to that for pure α-Fe when the nitrogen concentration increases up to 46 at.% (i.e. γ and γ phases) so that it might serve to analyze samples of unknown composition.

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“…[1,2] The Fe-N system presents a complicated phase diagram exhibiting a large number of phases [1,2] and sometimes it is difficult to produce pure iron nitrides for a particular application, e.g. protective coatings.…”

Section: Introductionmentioning

confidence: 99%

Corrosion behavior under accelerated SO₂ corrosion tests of thin iron nitride films prepared by DIBS

Marco

Herranz

Gracia

et al. 2010

Surface & Interface Analysis

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We report on the corrosion behavior of thin films, prepared by dual ion beam sputtering (DIBS), containing different concentrations of γ -and ε-iron nitride phases. When deposited on Si wafers, the film containing almost equal amounts of γ -Fe 4 N and ε-Fe 3−x N phases shows the highest corrosion resistance. When deposited on iron substrates, all the films show almost total chemical degradation. We attribute this to the open microporosity of the different films deposited.

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Characterization of laser-nitrided iron and sputtered iron nitride films

Cited by 75 publications

References 31 publications

Austenite-to-martenzite transformations in ledebourite-type powder steels

Austenite-to-martenzite transformations in ledebourite-type powder steels

Synthesis and characterization of iron nitrides. An XRD, Mössbauer, RBS and XPS characterization

Corrosion behavior under accelerated SO₂ corrosion tests of thin iron nitride films prepared by DIBS

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Characterization of laser-nitrided iron and sputtered iron nitride films

Cited by 75 publications

References 31 publications

Austenite-to-martenzite transformations in ledebourite-type powder steels

Austenite-to-martenzite transformations in ledebourite-type powder steels

Synthesis and characterization of iron nitrides. An XRD, Mössbauer, RBS and XPS characterization

Corrosion behavior under accelerated SO2 corrosion tests of thin iron nitride films prepared by DIBS

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Corrosion behavior under accelerated SO₂ corrosion tests of thin iron nitride films prepared by DIBS