Formation of nitrided layers on duplex steel – influence of multiphase substrate

Surface Engineering - Tập 26 Số 4 - Trang 299-304 - 2010
J. Bielawski1, J. Baranowska1
1Institute of Materials Science and Engineering, West Pomeranian University of Technology, ale Piastów 19, 70 310 Szczecin, Poland

Tóm tắt

The present paper reports the results of gas nitriding of duplex stainless steel and study of the effect of substrate structure on the nitrided layers. The differences in the growth of the layers on austenitic and ferritic substrate were studied. The microstructure and phase composition of the layers were investigated using light microscopy analysis), X-ray diffraction (XRD and grazing angle XRD – GXRD) and electron microprobe spectrometry. Moreover, the microhardness of the layers was studied. A particular role of steel substrate in layer formation was observed at a low temperature (below 500°C) nitriding. The layers were mostly composed of the S phase and expanded martensite formed on austenite and ferrite grains respectively. The substrate influence was of minor importance at treatment temperature higher than 500°C.

Từ khóa


Tài liệu tham khảo

10.1533/9781845698775

10.1016/j.surfcoat.2007.10.002

10.1016/j.surfcoat.2005.11.099

10.1016/j.surfcoat.2007.09.036

10.1016/j.tsf.2007.08.072

10.1016/j.corsci.2005.08.011

10.1016/j.surfcoat.2007.10.036

10.1016/S0257-8972(99)00084-5

10.1016/0257-8972(96)02880-0

Kliauga A. M., 1997, PhD thesis

10.1016/j.surfcoat.2005.11.037

10.1016/S0257-8972(02)00611-4

10.1016/S1359-6462(01)01137-X

10.1016/j.surfcoat.2004.02.049

Bielawski J., 2007, Acta Metall. Slovaca, 13, 906

Bielawski J., 2007, Inz. Mater, 3, 607

10.1063/1.1479749

Baranowska J., 2008, Inz. Mater, 6, 800

Thông tin
Thông tin xuất bản

Surface Engineering

Tập 26 Số 4

299-304

Thông tin tác giả