Abstract
The morphology in cementite precipitation and the orientation relationship between cementite plates and austenite matrix on aging of Fe-30wt%Mn-1.0wt%C alloy have been investigated by transmission electron and optical microscopies. On aging at 550°C, Widmanstätten-like cementite plates having the Pitsch orientation relationship (OR) were precipitated within the austenite matrix. But on aging at 700°C, colonies composed of cellular cementite and austenite plates were dominantly precipitated and grew out of grain boundaries. The latter cementite plates also preserved the Pitsch OR with the austenite counterparts. From the consideration of atomic habit plane relationships we deduced 4 different variants of the Pitsch OR. Only two of them could be identified from the transmission electron microscope (TEM) selected area diffraction (SAD) patterns. In the optical micrographs, all four variants respectively with their own easy growth direction of the cementite plates were distinguished.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
