Effect of heat treatment on the structure and mechanical properties of 0.08%C–17.0%Cr–0.8%Ti steel after “internal” nitriding

•Internal nitriding of ferritic stainless steel leads to significant hardening of the steel.•In the structure of the steel the precipitation of Cr2N particles was observed.•Annealing at 700°C after nitriding leads to the most uniform distribution of the microhardness. The influence of heat treatment...

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Bibliographic Details
Published in:Journal of alloys and compounds 2013-07, Vol.564, p.114-116
Main Authors: Nikulin, S.A., Rogachev, S.O., Khatkevich, V.M., Rozhnov, A.B., Nechaykina, T.A.
Format: Article
Language:English
Subjects:
Alloys
Annealing
Heat treatment
Mechanical properties
Metals and alloys
Microstructure
Nitriding
Precipitates
Precipitation
Structural steels
Transmission electron microscopy
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Summary:•Internal nitriding of ferritic stainless steel leads to significant hardening of the steel.•In the structure of the steel the precipitation of Cr2N particles was observed.•Annealing at 700°C after nitriding leads to the most uniform distribution of the microhardness. The influence of heat treatment on the structure, microhardness and tensile properties of the 0.08%C–17.0%Cr–0.8%Ti steel after “internal” nitriding is analyzed. It is shown that the nitriding and subsequent annealing of sheet samples leads to formation of structure with precipitates of nitride particles and a significant hardening of the material.
ISSN:0925-8388
1873-4669
DOI:10.1016/j.jallcom.2013.02.162