Creep-rupture behavior of butt welded joint of 304 stainless steel thick plate using small and large specimens
Creators
- 1. National Research Inst. for Metals, Tokyo (Japan)
Description
Creep-rupture properties of 50 mm thick 304 stainless steel joints by narrow-gap submerged arc welding were investigated at 550degC using small (round bar) and large (full-thickness plate) specimens. For the small specimens the rupture occurred at the base metal, while the location of fracture was at the weld metal for large plate specimens. This difference in rupture location is attributed to the stress distribution in the welded joint specimens during the creep process. The stress distribution is caused by the heterogeneity of strength in the weld metal and the restraint of deformation due to hardening of the heat affected zone in the base metal. The deformation behavior of base metal and weld metal in the joint is estimated by FEM computation, and it allows us to predict the location of fracture in the weldment by the comparison of relative strength between the base and the weld metals. (author)
Additional details
Publishing Information
- Journal Title
- Transactions of the National Research Institute for Metals (Tokyo)
- Journal Volume
- 33
- Journal Issue
- 1
- Series
- Trans. Natl. Res. Inst. Met. (Tokyo).
- Journal Page Range
- 64-71
- ISSN
- 0453-9222
- CODEN
- TNRMA
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 22088474
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- CREEP; DEFORMATION; DUCTILITY; FBR TYPE REACTORS; FINITE ELEMENT METHOD; FRACTURES; HEAT AFFECTED ZONE; MECHANICAL TESTS; RUPTURES; SAMPLE PREPARATION; SIZE; STEEL-CR19NI10; STEEL-CR20NI11; STRAIN HARDENING; STRESSES; SUBMERGED ARC WELDING; WELDED JOINTS; WELDING RODS
- Descriptors DEC
- ALLOYS; ARC WELDING; AUSTENITIC STEELS; BREEDER REACTORS; CARBON ADDITIONS; CHROMIUM ALLOYS; CHROMIUM-NICKEL STEELS; CORROSION RESISTANT ALLOYS; EPITHERMAL REACTORS; FABRICATION; FAILURES; FAST REACTORS; HARDENING; HEAT RESISTING ALLOYS; HIGH ALLOY STEELS; IRON ALLOYS; IRON BASE ALLOYS; JOINING; JOINTS; MATERIALS TESTING; MECHANICAL PROPERTIES; NICKEL ALLOYS; NUMERICAL SOLUTION; REACTORS; STAINLESS STEELS; STEELS; TENSILE PROPERTIES; TESTING; WELDING