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. 2017 Aug 3:14:489-493.
doi: 10.1016/j.dib.2017.08.005. eCollection 2017 Oct.

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

Alexander J Knowles  1   2 , Ayan Bhowmik  2 , Surajit Purkayastha  1 , Nicholas G Jones  1 , Finn Giuliani  2 , William J Clegg  1 , David Dye  2 , Howard J Stone  1
Affiliations

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

Alexander J Knowles et al. Data Brief. .

Abstract

The data presented in this article are related to the research article entitled "Laves phase intermetallic matrix composite in situ toughened by ductile precipitates" (Knowles et al.) [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 (Knowles et al.) [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 (Knowles et al.) [1] along with details of the transformation matrix determined.

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Figures

Fig. 1
Fig. 1
Heat treated alloy FIB-SEM slice and view (a) 3D surface reconstruction of the A2 phase, (b) example binarised FIB-SEM slice, as well as slices through the A2 phase surfaces in the (c) x–y, (d) x–z, and (e) x–z planes.
Fig. 2
Fig. 2
Heat treated alloy (a) HAADF-STEM image, as well as STEM-EDX maps of (b) Ti, (c) Fe and (d) Mo.
Fig. 3
Fig. 3
Heat treated alloy (a) SADP of [805]A2 and [30 20 3]C14 and (b) corresponding key.
See this image and copyright information in PMC

References

    1. Knowles A.J., Jun T.S., Bhowmik A., Johnstone D.N., Britto T.B., Guilianin F., Jones N.G., Jones C.N., Stone H.J., Dye D. Laves phase intermetallic matrix composite in situ toughened by ductile precipitates. Scr. Mater. 2017 (in press) - PMC - PubMed
    1. Knowles A.J., Jones N.G., Messé O.M.D.M., Barnard J.S., Jones C.N., Stone H.J. Int. J. Refract. Met. Hard Mater. 2016;60:160–168.