Figure 1
From: Formation of nano-sized M2C carbides in Si-free GH3535 alloy
Morphologies of grain-boundary precipitates in the Si-containing alloy under different thermal exposure conditions. (a) Solution treatment, (b) 650 °C for 1 hour, (c) 650 °C for 500 hours, and (d) 650 °C for 2000 hours. (e) TEM image and corresponding SADP for M6C carbides in the Si-containing alloy exposed to 650 °C for one hour. (f) Typical TEM-EDX spectrums and semi-quantitative compositional analyses for the M6C carbides in the Si-containing alloy. The carbon content is difficult to detect accurately using EDX, so only the relative contents (at.%) of the metal atoms (Cr, Ni, Mo, Si and Fe) are listed.
