Data on a Laves phase intermetallic matrix composite in situ toughened by ductile precipitates

Publication date: Available online 3 August 2017
Source:Data in Brief
Author(s): Alexander J Knowles, Ayan Bhowmik, Surajit Purkayastha, Nicholas G Jones, Finn Giuliani, William J Clegg, David Dye, Howard J Stone
The data presented in this article are related to the research article entitled "Laves phase intermetallic matrix composite in situ toughened by ductile precipitates" [1]. The composite comprised a Fe2(Mo, Ti) matrix with bcc (Mo, Ti) precipitated laths produced in situ by an aging heat treatment, which was shown to confer a toughening effect [1]. Here, details are given on a focused ion beam (FIB) slice and view experiment performed on the composite so as to determine that the 3D morphology of the bcc (Mo, Ti) precipitates were laths rather than needles. Scanning transmission electron microscopy (S(TEM)) micrographs of the microstructure as well as energy dispersive X-ray spectroscopy (EDX) maps are presented that identify the elemental partitioning between the C14 Laves matrix and the bcc laths, with Mo rejected from the matrix into laths. A TEM selected area diffraction pattern (SADP) and key is provided that was used to validate the orientation relation between the matrix and laths identified in [1] along with details of the transformation matrix determined.



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