Precipitation Behavior in AL6XN Austenitic Stainless Steel
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.
Jian-Feng Nie and Allan Morton
L. J. Meng et al., "Precipitation Behavior in AL6XN Austenitic Stainless Steel", Materials Science Forum, Vols. 654-656, pp. 2330-2333, 2010