Effects of nitrogen and high temperature aging on σ phase precipitation of duplex stainless steel

Effects of nitrogen and high temperature aging on σ phase precipitation of duplex stainless steels have been investigated. The precipitation of σ phase increases with the increase of aging time. The precipitation rate at 900 °C aging is the fastest and that at 700 °C aging is the lowest. The higher...

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Veröffentlicht in:	Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2005-08, Vol.402 (1), p.66-75
Hauptverfasser:	Huang, Chi-Shang, Shih, Chia-Chang
Format:	Artikel
Sprache:	eng
Schlagworte:	Aging Cross-disciplinary physics: materials science rheology Exact sciences and technology Intermetallic phase Materials science Phase diagrams and microstructures developed by solidification and solid-solid phase transformations Physics Precipitation σ Phase
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Zusammenfassung:	Effects of nitrogen and high temperature aging on σ phase precipitation of duplex stainless steels have been investigated. The precipitation of σ phase increases with the increase of aging time. The precipitation rate at 900 °C aging is the fastest and that at 700 °C aging is the lowest. The higher the aging temperature, the larger the size of σ phase precipitates. At the same condition, the more the nitrogen content, the lower the content of σ phase in duplex stainless steel.
ISSN:	0921-5093 1873-4936
DOI:	10.1016/j.msea.2005.03.111