Creep and low cycle fatigue characterisation of IN718 TIG butt-welds at 620°C

David W J Tanner, A.A. Becker, T.H. Hyde

Research output: Contribution to journalArticle (Academic Journal)

1 Citation (Scopus)

Abstract

The testing setups, results and analysis of constant load creep and low-cycle high
temperature fatigue tests of tungsten inert gas (TIG) butt-welded, thin-section INCONEL 718 (IN718) specimens are presented. The main objectives were to determine the effect the welds have on failure time and analyse any differences in their failure behaviour. It was found that although welded IN718 may exhibit comparatively little loss of tensile strength, its ductility and creep and high temperature fatigue properties are severely compromised due to its changed microstructure.
Original languageEnglish
Pages (from-to)1504-1510
JournalMATERIALS SCIENCE FORUM
Volume636-637
DOIs
Publication statusPublished - 2010

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