During successive annealing, more austenite may form through a solid-phase transformation. The 2205 duplex alloy, by volume, contains about 50-50 combination of ferrite and austenite grains.

The formation of ferrite and iron carbide will start at the austenite grain boundaries and the final pearlite microstructure will have lamella of ferrite and cementite. This is illustrated on the ...

Sandia National Laboratories researcher Katherine Jungjohann was the principal investigator and lead microscopist for a study that pinpointed a major cause of corrosion in pipelines.

Efforts have been made to improve their loss characteristics by controlling the size of the grains and the distribution of small amounts of additives in the grain-boundary region [4].

In cooling through this zone, ferrite is precipitated on the austenite grain boundaries. As the temperature is reduced, the ... This is illustrated on the phase diagram and shown in the ...