[Kovove materialy - Metallic materials]
    Fri - March 29, 2024 - 06:02 No. of hits : 1736618 ISSN 1338-4252 (online) ISSN 0023-432X (printed)
© Institute of Materials and Machine Mechanics, Slovak Academy of Sciences, Bratislava, Slovak Republic

VOLUME 34 (1996), Issue 6

The redistribution of substitutions and interstitional elements in steel weldments (CSN 412013 + 0.0755N)/(CSN 417241) (in Czech)
KUCERA, J., MICHALICKA, P., MILLION B., REK, A., WINKLER, Z., STRANSKY K.
vol. 34 (1996), no. 6, pp. 336 - 348

Abstract
The investigation of iron, chromium, nickel, carbon, and nitrogen redistribution has been carried out in steel weldments (nitridized carbon steel)/(stainless steel) at 500 up to 1100 °C. It has been found that all elements, substitutional and interstitional, reveal measurable redistribution after the applied diffusion anneals. The redistribution of substitutional elements has the character of interdiffusion and carbon and nitrogen diffuse uphill from the nitridized carbon steel into the stainless steel. Metallographic observations and the shape of measured penetration curves confirmed the occurrence of nitridic zones in CSN 417241 steel. The evaluated diffusion coefficients satisfy Arrhenius relations whose characteristics depend on the structure of the weld joints. The limit concentrations C and N at the weld interface have enabled to calculate the thermodynamic interaction parameters εCCr, εNCr, εNC the given steel weldments.

Key words
nitridized carbon steel, stainless steel, iron, chromium, nickel, carbon, and nitrogen redistribution, metallographic observations, diffusion coefficients

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Full title of this journal is bilingual: Kovové materiály - Metallic Materials.
The official abbreviation in accordance with JCR ISI is Kovove Mater.


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