On the cyclic deformation and residual stress in Ni-base single crystal superalloys

Siqi Ying, Tan Sui, Alexander J.G. Lunt, Roger C. Reed, Alexander M. Korsunsky

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Citations (Scopus)

Abstract

Nickel-base superalloys are often used in some of the most challenging applications that require exceptional high-temperature resilience, in terms of the combination of strength, toughness, fatigue and creep resistance, etc. We report an application of a discrete dislocation model to explore the changing hardening performance of a single crystal Ni-base superalloy under cyclic loading as a function of different crystal lattice orientations with respect to the direction of the applied load. We also report the application of a recently developed flexible methodology for measuring (sub)micron scale residual stress utilizing Focused Ion Beam and Digital Image Correlation (FIB-DIC) techniques in the ring-core drilling geometry.

Original languageEnglish
Title of host publicationWorld Congress on Engineering, WCE 2014
PublisherNewswood Limited
Pages1321-1326
Number of pages6
ISBN (Print)9789881925350
Publication statusPublished - 2014
Externally publishedYes
EventWorld Congress on Engineering, WCE 2014 - London, United Kingdom
Duration: 2 Jul 20144 Jul 2014

Publication series

NameLecture Notes in Engineering and Computer Science
Volume2
ISSN (Print)2078-0958

Conference

ConferenceWorld Congress on Engineering, WCE 2014
Country/TerritoryUnited Kingdom
CityLondon
Period2/07/144/07/14

Keywords

  • Discrete dislocation dynamics
  • FIB-DIC
  • Residual stress
  • Superalloy

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