Formation of Nano M2X Particles by a Tempering in High Cr Ferritic/Martensitic Steel

Sung Ho Kim; Chang Hee Han; Woo Seog Ryu

doi:10.4028/www.scientific.net/SSP.135.107

Paper Titles

Oxidation of Sulfur Components in Diesel Fuel with Tert-Butyl Hydroperoxide Using Chromium Containing Catalysts
p.89

Development and Application of Irradiation Technology in HANARO
p.93

Synthesis of Cu(In_0.75Al_0.25)Se₂ Thin Films from Binary Selenides Powder Compacted Targets by Sputtering and Selenization
p.99

A Passive Film Formed on Alloy 600 in High Temperature Aqueous Solution
p.103

Formation of Nano M₂X Particles by a Tempering in High Cr Ferritic/Martensitic Steel
p.107

Effect of Vanadium on Development of Acicular Ferrite Microstructure in Low Carbon Steel
p.111

Nucleation of Intragranular Ferrite on B1-Type Non-Metallic Inclusions
p.115

Microstructure and Nano-Indentation Properties of Ion-Irradiated Fe-9wt%Cr Alloy
p.119

Synthesis and Characterization of NiFe₂O₄ Nanoparticles Synthesized by Levitational Gas Condensation (LGC)
p.123

HomeSolid State PhenomenaSolid State Phenomena Vol. 135Formation of Nano M2X Particles by a Tempering in...

Formation of Nano M₂X Particles by a Tempering in High Cr Ferritic/Martensitic Steel

Abstract:

The precipitation of nano Cr2N particles in high Cr FM steels has been studied. The nitrogen content of the FM steels was changed to form stable Cr2N particles. Tempering temperature was also changed from 500 oC to 800 oC to study the precipitation behavior of the Cr2N particles with the tempering temperature. The Cr2N particles remained as a stable phase at a higher tempering temperature by increasing the nitrogen content. The shape of these particle was a fine needle type which was very similar to V(C,N) particles. The size of some Cr2N particles was increased as the nitrogen content increased. But these precipitates were not dissolved or largely coarsened during a creep deformation at 600°C. So it seems that they may act as an effective obstacle against a dislocation glide during a creep deformation, thus contribute to an increase of the creep rupture strength in high Cr FM steels.

You might also be interested in these eBooks

Nanocomposites and Nanoporous Materials VIII

View Preview

Info:

Periodical:

Solid State Phenomena (Volume 135)

Pages:

107-110

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.135.107

Citation:

Cite this paper

Online since:

February 2008

Authors:

Sung Ho Kim, Chang Hee Han, Woo Seog Ryu

Keywords:

CR₂N Particle, Creep Rupture Strength, FM Steel, Tempering

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] R. Viswanathan, W. T. Baker: Proc. 2000 Int. Joint Power Generation Conf., Miami Beach, (2000), p.377.

Google Scholar

[2] Y. Oka, S. Koshkzuka: SCR-2000 (101), Tokyo, (2000).

Google Scholar

[3] D.S. Gelles: EUROMAT96, Materila and Nuclear Power, (1996), p.281.

Google Scholar

[4] Sung-Ho Kim, Woo-Seog Ryu, and Il Hium Kuk: J. Korean Nuclear Society, Vol. 31 (1999), p.561.

Google Scholar

[5] G. Eggeler, J. Hald, M. Cans, and J. Phillips: Creep and Fracture of Engineering Materials and Structures, edited by B. Wilshire and R.W. Evans, London, (1993), p.527.

Google Scholar

[6] Sung-Ho Kim, B.J. Song, and Woo-Seog Ryu: Metals and Materials International, Vol. 7, (2001), p.297.

Google Scholar

[7] Sung-Ho Kim, B.J. Song, Il Hiun Kuk, and Woo-Seog Ryu: J. Kor. Inst. Met. & Mater., Vol. 38 (2000), p.454.

Google Scholar

[8] F.B. Pickering: Stainless Steel 84, The Institute of Metals, (1985), p.2.

Google Scholar