An investigation into the effect of weld technique on the residual stress distribution of 3CR12 (DIN 1.4003) built-up structural sections
(2011) In Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications 225(L3). p.123-132- Abstract
- This article presents an experimental investigation of thermally induced residual stresses in fabricated 3CR12 (DIN 1.4003) T-sections. 3CR12 is a weldable utility stainless steel developed to provide a superior alternative to coated carbon steels and other alloys which have a poor corrosion/abrasion resistance. Because of the difficulty and costs involved in hot-rolling stainless steel structural sections, they are usually fabricated by welding. In this investigation, full-penetration laser- and manual metal arc (MMA) joints were considered along with partial-penetrated MMA- and metal inert gas (MIG) welded joints. The residual stresses induced during welding were measured by neutron diffraction. All the sections displayed a largely... (More)
- This article presents an experimental investigation of thermally induced residual stresses in fabricated 3CR12 (DIN 1.4003) T-sections. 3CR12 is a weldable utility stainless steel developed to provide a superior alternative to coated carbon steels and other alloys which have a poor corrosion/abrasion resistance. Because of the difficulty and costs involved in hot-rolling stainless steel structural sections, they are usually fabricated by welding. In this investigation, full-penetration laser- and manual metal arc (MMA) joints were considered along with partial-penetrated MMA- and metal inert gas (MIG) welded joints. The residual stresses induced during welding were measured by neutron diffraction. All the sections displayed a largely tensile residual stress field around the weld that subsequently implied a compressive residual stress field in the flange regions. This was most pronounced for the MMA and MIG welds. The laser- welded sections displayed a more localized tensile residual stress field in the heat-affected zone that translated to lower average stresses in the flanges. In the latter part of this article, the effect of the weld-induced residual stress fields on the structural performance of appropriate T-section-based columns are assessed and compared. A significant difference in structural performance between the different weld techniques is predicted with the laser- welded sections displaying the highest predicted strength. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/2161633
- author
- Klopper, J. J. ; Laubscher, R. F. ; Steuwer, Axel LU and James, M. N.
- organization
- publishing date
- 2011
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- 3CR12, DIN 1.4003, welding, residual stress/strain, neutron, diffraction, stainless steel, T-section, professional ratio (factor)
- in
- Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications
- volume
- 225
- issue
- L3
- pages
- 123 - 132
- publisher
- SAGE Publications
- external identifiers
-
- wos:000293924800002
- scopus:80052881416
- ISSN
- 1464-4207
- DOI
- 10.1177/0954420711404326
- language
- English
- LU publication?
- yes
- id
- 18895670-9b56-4fab-a217-86b7b3066fa1 (old id 2161633)
- date added to LUP
- 2016-04-01 13:16:58
- date last changed
- 2022-04-11 16:36:21
@article{18895670-9b56-4fab-a217-86b7b3066fa1, abstract = {{This article presents an experimental investigation of thermally induced residual stresses in fabricated 3CR12 (DIN 1.4003) T-sections. 3CR12 is a weldable utility stainless steel developed to provide a superior alternative to coated carbon steels and other alloys which have a poor corrosion/abrasion resistance. Because of the difficulty and costs involved in hot-rolling stainless steel structural sections, they are usually fabricated by welding. In this investigation, full-penetration laser- and manual metal arc (MMA) joints were considered along with partial-penetrated MMA- and metal inert gas (MIG) welded joints. The residual stresses induced during welding were measured by neutron diffraction. All the sections displayed a largely tensile residual stress field around the weld that subsequently implied a compressive residual stress field in the flange regions. This was most pronounced for the MMA and MIG welds. The laser- welded sections displayed a more localized tensile residual stress field in the heat-affected zone that translated to lower average stresses in the flanges. In the latter part of this article, the effect of the weld-induced residual stress fields on the structural performance of appropriate T-section-based columns are assessed and compared. A significant difference in structural performance between the different weld techniques is predicted with the laser- welded sections displaying the highest predicted strength.}}, author = {{Klopper, J. J. and Laubscher, R. F. and Steuwer, Axel and James, M. N.}}, issn = {{1464-4207}}, keywords = {{3CR12; DIN 1.4003; welding; residual stress/strain; neutron; diffraction; stainless steel; T-section; professional ratio (factor)}}, language = {{eng}}, number = {{L3}}, pages = {{123--132}}, publisher = {{SAGE Publications}}, series = {{Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications}}, title = {{An investigation into the effect of weld technique on the residual stress distribution of 3CR12 (DIN 1.4003) built-up structural sections}}, url = {{http://dx.doi.org/10.1177/0954420711404326}}, doi = {{10.1177/0954420711404326}}, volume = {{225}}, year = {{2011}}, }