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Neutron strain scanning of fibre and diode laser welds in stainless steel and Ti6Al4V
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Voisey, K. T., Folkes, J., Srithorn, J. and Hughes, Darren J. (2014) Neutron strain scanning of fibre and diode laser welds in stainless steel and Ti6Al4V. Physics Procedia, Volume 56 . pp. 1277-1285. doi:10.1016/j.phpro.2014.08.051 ISSN 1875-3892.
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WRAP_Hughes_1-s2.0-S1875389214001965-main.pdf - Published Version - Requires a PDF viewer. Available under License Creative Commons Attribution Non-commercial No Derivatives. Download (1251Kb) | Preview |
Official URL: http://dx.doi.org/10.1016/j.phpro.2014.08.051
Abstract
Fibre lasers provide an unprecedented combination of high beam quality, brightness and low cost. Fibre laser beams can provide an exceptionally high power density beam with a relatively large depth of focus. Compared to more established laser welding technologies such as diode laser welding, fibre laser welding produces exceptionally narrow weld beads. As with all types of welding, fibre laser welding produces residual stresses in the material forming and adjacent to the weld. The SALSA instrument at the Institut Laue Langevin (ILL) has been used to make neutron diffraction measurements for both fibre and diode laser welded stainless steel 304 and Ti6Al4 V. Clear diffraction peaks are obtained from stainless steel 304 and residual stress distributions are obtained. Little variation in residual stress distribution with welding parameters is seen. Ti6Al4 V diffraction peaks are complicated by phase transformations on cooling. Transformed beta phase peaks in Ti6Al4 V allow the extent of the heat affected zone to be determined.
Item Type: | Journal Article | ||||
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Subjects: | T Technology > TS Manufactures | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||
Library of Congress Subject Headings (LCSH): | Laser welding, Residual stresses | ||||
Journal or Publication Title: | Physics Procedia | ||||
Publisher: | Elsevier BV | ||||
ISSN: | 1875-3892 | ||||
Official Date: | 9 September 2014 | ||||
Dates: |
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Volume: | Volume 56 | ||||
Page Range: | pp. 1277-1285 | ||||
DOI: | 10.1016/j.phpro.2014.08.051 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Open Access (Creative Commons) | ||||
Date of first compliant deposit: | 28 December 2015 | ||||
Date of first compliant Open Access: | 28 December 2015 |
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