Study of the influence of filler wire carbon and residual element content on the mechanical properties of mechanized gas-metal-arc-welds: Final report

Technical Report · Wed Jun 01 00:00:00 EDT 1988

OSTI ID:6562368

The individual and interactive roles of carbon, oxygen, and nitrogen and residual or tramp elements such as titanium, chromium, copper, sulfur, phosphorus, aluminum, arsenic, tin, and antimony on weld metal mechanical properties in pipeline steels are poorly documented. Further, most of the research has been done with the submerged-arc process. Systematic studies of the microstructures and toughnesses of GMAW welds are limited. A better understanding of the effects of carbon and the residual elements on weld metal toughnesses is needed so that appropriate filler wires can be produced. Accordingly, the objective of this research program was to attempt to determine the reason for the variable toughness of mechanized gas-metal-arc (GMA) girth welds and to identify means of improving toughness levels, particularly CTOD test values. This report is available from the American Gas Association Order Processing Department, 1515 Wilson Boulevard, Arlington, VA 2209-2470 (703/841-8558). 5 refs., 36 figs., 9 tabs.

• Research Organization: Microalloying International, Inc. (USA)
• OSTI ID: 6562368
• Report Number(s): MIT-9005561; ON: TI89005561
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
PIPELINES
GAS METAL-ARC WELDING
CARBON
ELECTRODES
MECHANICAL PROPERTIES
PROGRESS REPORT
WELDED JOINTS
WELDING FLUXES
ARC WELDING
DOCUMENT TYPES
ELEMENTS
FABRICATION
JOINING
JOINTS
NONMETALS
WELDING
420205* - Engineering- Transport & Storage Facilities- (1980-)
420500 - Engineering- Materials Testing