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Fatigue Crack Growth in Flow Formed INCONEL 718 / Costa Coleman, Martin Bache, Carl Boettcher

Materials Science Forum, Volume: 879, Pages: 374 - 379

Swansea University Author: Martin Bache

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Abstract

Fatigue crack propagation has been measured in flow formed Inconel 718 (IN718). Test pieces were extracted from a flow formed tubular structure in the longitudinal direction, retaining the tube curvature across their width. Crack growth rates (da/dN) were measured at 20, 300, and 400oC. For comparis...

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Published in: Materials Science Forum
ISSN: 1662-9752
Published: 2016
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa31549
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Abstract: Fatigue crack propagation has been measured in flow formed Inconel 718 (IN718). Test pieces were extracted from a flow formed tubular structure in the longitudinal direction, retaining the tube curvature across their width. Crack growth rates (da/dN) were measured at 20, 300, and 400oC. For comparison, tests were repeated on specimens with an identical geometry but machined from conventionally forged IN718. Detailed metallurgy of the flow formed material is presented.
College: College of Engineering
Start Page: 374
End Page: 379