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Numerical and physical simulation of rapid microstructural evolution of gas atomised Ni superalloy powders

Abstract:

The rapid microstructural evolution of gas atomised Ni superalloy powder compacts over timescales of a few seconds was studied using a Gleeble 3500 thermomechanical simulator, finite element based numerical model and electron microscopy. The study found that the microstructural changes were governed by the characteristic temperatures of the alloy. At a temperature below the γ' solvus, the powders maintained dendritic structures. Above the γ' solvus temperature but in the solid-state, rapid gr...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Accepted Manuscript

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Publisher copy:
10.1016/j.matdes.2016.12.074

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Publisher:
Elsevier Publisher's website
Journal:
Materials and Design Journal website
Volume:
117
Pages:
157-167
Publication date:
2016-12-27
Acceptance date:
2016-12-23
DOI:
EISSN:
1873-4197
ISSN:
0264-1275
Pubs id:
pubs:668713
URN:
uri:90f07b4c-f14a-42e3-9878-d0a0c966160b
UUID:
uuid:90f07b4c-f14a-42e3-9878-d0a0c966160b
Local pid:
pubs:668713

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