Neutron diffraction study and EPSC modelling of multi-pass TIG weld

Shiv Sharma, Mark Turski, Mike Fitzpatrick, Lyndon Edwards

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Abstract

The work presented here is part of a wider study on various weld types. Several cuboids were machined out of 308L stainless steel weld and these were compression tested in-situ at the ENGIN-X time-of-flight neutron diffractometer. The cuboids were tested in various orientations. The crystallographic strain was measured in terms of the Pawley lattice strain and the single peak strain was also calculated. The Young's modulus for various orientations has been calculated by fitting the linear region of the stress versus Pawley lattice strain curve. EPSC modelling of the angular variation of the Young's modulus has been carried out. The agreement between the neutron diffraction data and the EPSC modelling results has remained good. Efforts have been made to relate the crystallographic texture with the anisotropy of the Young's modulus.

Original languageEnglish
Title of host publicationProceedings of the 8th Pacific Rim International Congress on Advanced Materials and Processing (PRICM-8)
PublisherJohn Wiley & Sons
Pages3475-3480
Number of pages6
Volume4
ISBN (Print)9781632660008
Publication statusPublished - 2013
Externally publishedYes
EventPacific Rim International Congress on Advanced Materials and Processing 2013 - Waikoloa Hawaii, Waikoloa, United States of America
Duration: 4 Aug 20139 Aug 2013
Conference number: 8th

Conference

ConferencePacific Rim International Congress on Advanced Materials and Processing 2013
Abbreviated titlePRICM 8
CountryUnited States of America
CityWaikoloa
Period4/08/139/08/13
OtherProceedings of the 8th Pacific Rim International Congress on Advanced Materials and Processing (PRICM-8)

Keywords

  • Anisotropy
  • Crystallographic texture
  • EPSC modelling
  • Neutron diffraction

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