Iron nitride and carbonitride phases in a nitrogen implanted carbon steel

Santos, Carlos Alberto dos; Barros, B. A. S. de; Souza, J. P. de; Baumvol, Israel Jacob Rabin

doi:10.1063/1.93479

Cited by 49 publications

(3 citation statements)

References 11 publications

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“…Early interest in iron nitrides came from the steel industry to improve the abrasive strength of steels by nitridizing the surface. 1,2 Recently, however, the magnetic properties of iron nitrides, especially high saturation magnetization and high coercivity, have received more attention than their mechanical properties because they are amenable to high-density magnetic recording.…”

Section: Introductionmentioning

confidence: 99%

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Takahashi

Tamura

et al. 2001

J. Mater. Chem.

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Section: Introductionmentioning

confidence: 99%

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Takahashi

Tamura

et al. 2001

J. Mater. Chem.

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“…In particular Fayeulle [9] presented that in a 52100 steel, nitrogen implantation at 2.1017 ions.cm- 2 and 150 0 C produced the best improvements. Moreover it is well known that carbon greatly contributes to the carbonitride formation inside the implanted layer [11] and the origin and the role of this carbon [5] has often been discussed. In this paper we present a study on the influence of the steel alloying constituents (essentially C and Cr) as well as on the importance of the initial matrix crystalline structure.…”

Section: Introductionmentioning

confidence: 99%

Compared Nitrogen Implantations of Various Alloyed Steels

et al. 1987

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Nitrogen implantations in pure iron and various stE-els are investigated using nuclear reaction analysis, Conversion Electron M6ssbauer Spectroscopy and Grazing angle X-ray Diffraction. The present work sums up all the significant results although it does not constitue a systematic study. It describes the influence of the chemical composition and the structure effect of the matrix as well as those of the implantation time. The N-martensite, c-nitride and e-carbonitride phases are principally identified. The fraction of iron bound with nitrogen is evaluated in the different steels. The strong influence of the small chrcmium amounts inside the matrix upon the nitride formation is underlined. A preferential orientation of these phases is shown. SIMS experiments are presented in particular to determine the carbon distribution in the first surface layers.

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“…RAIJSCHENBACH and A. I i o~r r s c~ Carbucicchio et al [ 5 ] registered y-austenite immediately below the surface in steel after implantation of 5 x 10l6 and 1 : < lo1' N+/cm2, which is joined by e-Fe,N1-,, and, at deeper regions by -['-nitride. Dos Santos [6] has found an E-and/or <-nitride phase after implantation of 4 : < 1017 N+/cm2 in steel.…”

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confidence: 99%

Formation of compounds by nitrogen ion implantation in iron

Rauschenbach

Kolitsch

1983

Phys. Stat. Sol. (a)

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The phase composition of iron after implantation with doses form 1 × 1016 N+ cm−2 to 1 × × 1018 N+ cm−2 at room temperature is investigated by high‐voltage electron microscopy and selected area diffraction. The formation of iron nitride and iron carbonitride phases are considered in dependence of implantation dose. In the dose range from 1 × 1016 up to 4 × 1016 N+ cm−2 γ‐austenite solid solution is produced. In the dose range from 4 × 1016 up to 1 × 1018 N+ cm−2 α‐martensite, α‐Fe16N2 and ϵ‐Fe2N1−x are observed in addition to the γ‐austenite phase. The differrent crystal morphology of iron nitrides are imagined. It is found that ϵ‐iron carbonitride can be proved above implantation doses of 7.5 × 1016 N+ cm−2. The implantation‐induced phase formation of iron nitride phases are discussed.

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Iron nitride and carbonitride phases in a nitrogen implanted carbon steel

Abstract: Formation of ferromagnetic iron nitrides in iron thin films by high-dose nitrogen ion implantation

Cited by 49 publications

References 11 publications

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Compared Nitrogen Implantations of Various Alloyed Steels

Formation of compounds by nitrogen ion implantation in iron

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