Load-Sharing in δ-Processed Inconel 718

Michael Glavicic; Donald W. Brown; Bjørn Clausen; Thomas Sisneros; Thomas Holden

doi:10.4028/www.scientific.net/MSF.777.52

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HomeMaterials Science ForumMaterials Science Forum Vol. 777Load-Sharing in δ-Processed Inconel 718

Load-Sharing in δ-Processed Inconel 718

Abstract:

Time-of-flight neutron measurements have been made at 20, 400 and 650oC on δ-processed Inconel 718 in order to measure the load sharing between the γ-phase matrix and the orthorhombic δ-phase. The strain response parallel and perpendicular to the applied stress was measured for seven γ-phase reflections and five δ-phase reflections. The latter were about 50 times weaker than the former suggesting a 2.0% concentration of the δ-phase. At all temperatures the δ-phase strain becomes strongly tensile parallel to the loading direction but also exhibits plastic deformation. However, the nature of the three orthorhombic strains changes with temperature.

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Periodical:

Materials Science Forum (Volume 777)

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52-57

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.777.52

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Online since:

February 2014

Authors:

Michael Glavicic, Donald W. Brown, Bjørn Clausen, Thomas Sisneros, Thomas Holden

Keywords:

Load-Sharing, Neutron Diffraction, Nickel-Based Superalloy, Strain

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