PIII nitriding of fcc‐alloys containing Ni and Cr | Zendy

Lutz Johanna | Zendy; Gerlach Jürgen W. | Zendy; Mändl Stephan | Zendy

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PIII nitriding of fcc‐alloys containing Ni and Cr

Author(s) -

Lutz Johanna,

Gerlach Jürgen W.,

Mändl Stephan

Publication year - 2008

Publication title -

physica status solidi (a)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.532

H-Index - 104

eISSN - 1862-6319

pISSN - 1862-6300

DOI - 10.1002/pssa.200778329

Subject(s) - nitriding , austenite , materials science , metallurgy , corrosion , layer (electronics) , diffusion , nitrogen , austenitic stainless steel , microstructure , composite material , chemistry , thermodynamics , physics , organic chemistry

Face‐centred cubic (fcc) alloys such as austenitic stainless steel, Ni base alloys and Co base alloys are important materials with a high corrosion resistance. Nitrogen insertion by PIII into all these alloys at moderate temperatures leads to the formation of an expanded austenite structure. A similar activation energy for the thermally assisted diffusion of about 0.75 eV was found for steel and CoCr alloys with CrN precipitates beyond 400 °C in both systems. However, a double layer structure was observed for CoCr, similar to Ni alloys, in contrast to a single layer for austenitic steel. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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