Bibliographic Details
| Title: |
Precipitate scanning in Ni-base γ/γ′-superalloys |
| Authors: |
Roth, S.V.1 sroth@esrf.fr, Burghammer, M.1, Gilles, R.2, Mukherji, D.3, Rösler, J.3, Strunz, P.4 |
| Source: |
Nuclear Instruments & Methods in Physics Research Section B. Jan2003, Vol. 200 Issue 1-4, p255. 6p. |
| Subjects: |
Optical diffraction, Heat resistant alloys |
| Abstract: |
In this paper we present μSAXS and TEM investigations on the local microstructure of an experimental W-rich single crystal Ni-base γ/γ′-superalloy. Using the ID13(ESRF) X-ray microfocus beam we scanned a small sample area and were able to distinguish between different precipitate phases (γ′/σ). The σ phase could be unambiguously identified by comparing the data to numerical two-dimensional simulations on similar alloys, e.g. SCA, SC16. The low concentrated detrimental platelet TCP σ phase, which was not detectable in SANS on the same alloy, seems to be ordered in stacks with a preferential orientation perpendicular to the [3 2 0]-direction. [Copyright &y& Elsevier] |
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| Database: |
Engineering Source |
