Weldability and hot ductility of iron aluminides

Technical Report · Wed May 01 00:00:00 EDT 1991

OSTI ID:5644154

Ash, D I; Edwards, G R ^[1]; David, S A ^[2]

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1. Colorado School of Mines, Golden, CO (United States). Center for Welding and Joining Research
2. Oak Ridge National Lab., TN (United States)

The weldability of iron aluminide alloys is discussed. Although readily welded with electron beam (EB) and gas-tungsten arc (GTA) techniques, iron aluminides are sometimes susceptible to cracking during cooling when welded with the GTA welding process. Taken into account are the effects of microstructural instability (grain growth), weld heat input (cooling rate) and environment on the hot ductility of an iron aluminide alloy designated FA-129. 64 refs., 59 figs., 3 tabs.

• Research Organization: Oak Ridge National Lab., TN (United States); Colorado School of Mines, Golden, CO (United States). Center for Welding and Joining Research
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 5644154
• Report Number(s): ORNL/SUB-85-27421/04; MT-CWR--091-012; ON: DE91016343
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010400 -- Coal
Lignite
& Peat-- Processing
36 MATERIALS SCIENCE
360103* -- Metals & Alloys-- Mechanical Properties
ALLOYS
ALUMINIUM ALLOYS
CHEMICAL REACTIONS
CORROSION RESISTANCE
CRYSTAL STRUCTURE
DEFORMATION
DUCTILITY
EMBRITTLEMENT
FRACTURE PROPERTIES
GRAIN SIZE
HEAT AFFECTED ZONE
HYDROGEN EMBRITTLEMENT
INTERMETALLIC COMPOUNDS
IRON ALLOYS
IRON BASE ALLOYS
MECHANICAL PROPERTIES
MICROSTRUCTURE
SIZE
SULFIDATION
TENSILE PROPERTIES
WELDABILITY
ZONES