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Laser nitriding of iron: Influence of the laser parameters on the nitriding efficiency (1996)

Illgner, C. ; Lieb, K.P. ; Schaaf, P. ; [weitere]

Springer

Applied physics 62 (1996), S. 231-236

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Details

ISSN: 1432-0630

Schlagwort(e): PACS61.80.Ba; 52.75.-d; 81.60.Bn

Quelle: Springer Online Journal Archives 1860-2000

Thema: Maschinenbau , Physik

Notizen: Abstract. Laser nitriding of Armco iron in nitrogen was studied for KrF-excimer-laser irradiation. The influence of the energy density and number of pulses on the nitrogen take-up and the nitride phases formed was investigated using Resonant Nuclear Reaction Analysis (RNRA) and Mössbauer spectroscopy. Besides the original $\alpha$ -iron, austenite $\gamma$ -Fe(N), martensite $\alpha'$ -Fe(N), $\varepsilon$ -Fe $_{2+x}$ N, and $\alpha''$ -Fe $_{16}$ N $_2$ , were identified. The fraction of the $\varepsilon$ -phase was found to increase with the number of pulses and the energy density. A threshold energy density of 1.8(2) J/cm $^2$ for the laser nitriding process was found.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF01575086

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