Relation between mechanical properties and microstructure in CRE Type 308 weldments

Journal Article · Mon Jul 01 00:00:00 EDT 1974 · Weld. Res. (Miami); (United States)

OSTI ID:5773992

King, R T; Stiegler, J O; Goodwin, G M

A shielded metal arc (SMA) Type 308 stainless steel pressure vessel test weld with the controlled residual elements (CRE) boron, titanium, and phosphorus was tensile tested and creep tested at temperatures to 650/sup 0/C (1200/sup 0/F). Improved ductility in tests lasting several thousands of hours, compared to that of standard welds, is associated with the absence of interphase separation. Systematic variations in microstructure and mechanical properties throughout the weld and in the heat-affected zone are due to thermal and mechanical cycling during the welding process. Anisotropic deformation, that is related to local substructure and preferred crystallographic orientation, occurs.

• Research Organization: Oak Ridge National Lab., TN
• OSTI ID: 5773992
• Journal Information: Weld. Res. (Miami); (United States), Journal Name: Weld. Res. (Miami); (United States); ISSN WERSA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360100* -- Metals & Alloys
ALLOYS
ANISOTROPY
ARC WELDING
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
CONTAINERS
CORROSION RESISTANT ALLOYS
CREEP
CRYSTAL STRUCTURE
DEFORMATION
FABRICATION
HEAT AFFECTED ZONE
IRON ALLOYS
IRON BASE ALLOYS
JOINING
JOINTS
MECHANICAL PROPERTIES
MICROSTRUCTURE
NICKEL ALLOYS
PRESSURE VESSELS
SHIELDED METAL-ARC WELDING
STAINLESS STEEL-308
STAINLESS STEELS
STEELS
TENSILE PROPERTIES
WELDED JOINTS
WELDING
ZONES