To reduce tensile residual stress in a welded region, we have developed a new cooling method that applies a water-shower behind the welding torch. When this method is applied to multi-layer welding of austenitic stainless steel plates, cooling conditions mainly determine how much the residual stress can be reduced. To determine the conditions, we first used FEM to evaluate the effects of water-shower cooling and interpass temperature on the residual stress. In addition, we found effective conditions for reducing tensile residual stress. To verify the validity of the conditions, three plates were welded with or without water shower cooling. Residual stresses of the plates were measured experimentally. It was found that tensile residual stresses occurred on the surface of the welds and that they were reduced when the water-shower was applied at the last pass. These measurement results agree well with the FEM analyses. It can therefore be concluded that water-shower cooling during the last welding pass is appropriate for reducing tensile residual stress in austenitic stainless steel at a multi-pass weld.
Skip Nav Destination
ASME 2006 Pressure Vessels and Piping/ICPVT-11 Conference
July 23–27, 2006
Vancouver, BC, Canada
Conference Sponsors:
- Pressure Vessels and Piping Division
ISBN:
0-7918-4757-8
PROCEEDINGS PAPER
Residual Stress Improvement in Multi-Layer Welding of Austenitic Stainless Steel Plates by Using Water-Shower Cooling During Welding Process Available to Purchase
Nobuyoshi Yanagida,
Nobuyoshi Yanagida
Hitachi, Ltd., Hitachi, Ibaraki, Japan
Search for other works by this author on:
Hiroo Koide
Hiroo Koide
Hitachi, Ltd., Hitachi, Ibaraki, Japan
Search for other works by this author on:
Nobuyoshi Yanagida
Hitachi, Ltd., Hitachi, Ibaraki, Japan
Hiroo Koide
Hitachi, Ltd., Hitachi, Ibaraki, Japan
Paper No:
PVP2006-ICPVT-11-94039, pp. 927-933; 7 pages
Published Online:
July 23, 2008
Citation
Yanagida, N, & Koide, H. "Residual Stress Improvement in Multi-Layer Welding of Austenitic Stainless Steel Plates by Using Water-Shower Cooling During Welding Process." Proceedings of the ASME 2006 Pressure Vessels and Piping/ICPVT-11 Conference. Volume 6: Materials and Fabrication. Vancouver, BC, Canada. July 23–27, 2006. pp. 927-933. ASME. https://doi.org/10.1115/PVP2006-ICPVT-11-94039
Download citation file:
10
Views
Related Proceedings Papers
Related Articles
Numerical Simulation of Residual Stresses in a Spot Welded Joint
J. Eng. Mater. Technol (April,2003)
Optimization of a Weld Overlay on a Plate Structure
J. Pressure Vessel Technol (February,2010)
Improvement of Residual Stresses of Circumferential Joint of Pipe by Heat-Sink Welding
J. Pressure Vessel Technol (February,1986)
Related Chapters
Subsection NE—Class MC Components
Online Companion Guide to the ASME Boiler & Pressure Vessel Codes
Development of Nuclear Boiler and Pressure Vessels in Taiwan
Companion Guide to the ASME Boiler and Pressure Vessel Code, Volume 3, Third Edition
Subsection NF—Supports
Companion Guide to the ASME Boiler & Pressure Vessel Codes, Volume 1 Sixth Edition