Precipitation Behavior in AL6XN Austenitic Stainless Steel

Abstract:

The precipitation behavior in the AL6XN austenitic stainless steel after creep deformation at temperatures 500~750 °C up to 3600 hours has been studied by electron microscope. The results showed that precipitates were hardly observed for the steel crept at 500~550 °C, and that the precipitates of carbides were mainly found at grain boundaries in samples crept at 600 °C. When the creep temperature was increased to 650~750 °C, a high density precipitates was found both at grain boundaries and within grains. The electron diffraction pattern and energy-dispersive X-ray spectroscopy analyses confirmed that these precipitates are  and Laves phases.

• Periodical: Materials Science Forum (Volumes 654-656)
• Pages: 2330-2333
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.654-656.2330
• Online since: June 2010
• Authors: Li Jun Meng, Hui Xing, Jian Sun
• Keywords: AL6XN Stainless Steel, Carbide, Laves Phase, Precipitation, σ Phase

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