GTA weld cracking-alloy 625 to 304L

Journal Article · Thu Aug 01 04:00:00 EDT 1985 · Weld. J. (Miami); (United States)

OSTI ID:6409084

Patterson, R A; Milewski, J O

Autogenous gas tungsten arc welds joining alloy 625 and 304L stainless steel were found to be susceptible to weld solidification cracking. Utilization of pulsed current GTA welding produced a higher sensitivity to solidification cracks than continuous current welding. Spot Varestraint tests show that the sensitivity of this dissimilar metal combination to cracking exists over the entire range of dilutions while the greatest sensitivity is in 304L stainless steel rich compositions. Auger electron spectroscopy indicates that segregation of sulfur and phosphorous to the interdendritic phase promotes the hot cracking.

• Research Organization: Los Alamos National Laboratory, Los Alamos, NM
• OSTI ID: 6409084
• Journal Information: Weld. J. (Miami); (United States), Journal Name: Weld. J. (Miami); (United States) Vol. 64:8; ISSN WEJUA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360101* -- Metals & Alloys-- Preparation & Fabrication
360103 -- Metals & Alloys-- Mechanical Properties
ALLOYS
ARC WELDING
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
CORROSION RESISTANT ALLOYS
CRACKS
ELEMENTS
FABRICATION
FRACTURE MECHANICS
FRACTURE PROPERTIES
GAS TUNGSTEN-ARC WELDING
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
INCONEL 625
INCONEL ALLOYS
IRON ALLOYS
IRON BASE ALLOYS
JOINING
JOINTS
MATERIALS
MECHANICAL PROPERTIES
MECHANICS
MOLYBDENUM ALLOYS
NICKEL ALLOYS
NICKEL BASE ALLOYS
NIOBIUM ALLOYS
NONMETALS
PHASE TRANSFORMATIONS
PHOSPHORUS
SOLIDIFICATION
STAINLESS STEEL-304
STAINLESS STEELS
STEELS
SULFUR
TANTALUM ALLOYS
WELDED JOINTS
WELDING