SYMPOSIA PAPER Published: 01 January 1989
STP24582S

Embrittlement of a Copper Containing Weld Metal

Source

Elevated temperature isothermal exposure of a “weathering” steel weld containing approximately 0.5% copper, in the as-welded condition, embrittled the weld as characterized by an increase in strength and a decrease in toughness and tensile ductility. A similar embrittlement was not encountered for material exposed in the postweld stress relieved condition. The embrittlement was attributed to the precipitation of an iron-copper intermetallic compound. Control of copper content below the solubility limit or the use of a postweld stress relief heat treatment should prevent the occurrence of any significant embrittlement.

Author Information

Christoffel, RJ
General Electric Company, Schenectady, NY
Silvia, AJ
Northeast Utilities, Meriden, CT
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Details
Developed by Committee: A01
Pages: 232–242
DOI: 10.1520/STP24582S
ISBN-EB: 978-0-8031-5097-3
ISBN-13: 978-0-8031-1259-9