SYMPOSIA PAPER Published: 01 January 1985
STP34518S

Elastic-Plastic Properties of Submerged Arc Weld Metal

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The results of a study conducted over a number of years to characterize the elastic-plastic fracture properties of submerged arc weld metal are presented in this paper. The fracture properties of four different weldments were investigated at temperatures ranging from 24 to 288°C (75 to 550°F). Tests were conducted using both the conventional multiple-specimen JIc procedure as well as an automated single-specimen unloading compliance technique capable of generating the material JI-R curve.

Test results obtained using the two different procedures are compared. The comparison indicates that while both test techniques generate comparable Ja data for a given test condition, JIc values from the respective sets of data can differ. This is attributed largely to the sparsity of data generated by the multiple-specimen technique and the nonlinearity of the JI-R curves as revealed by the single-specimen technique.

Welding procedure was found to have a significant effect on measured toughness. A wide range of fracture behavior was observed. The welding parameters responsible for the observed behavior are discussed. The applicability of the current JIc and JI-R curve test procedures over the wide range of crack growth behavior observed is discussed.

Author Information

Van Der Sluys, WA
Babcock & Wilcox, McDermott Company Research and Development Division, Alliance, OH
Emanuelson, RH
Babcock & Wilcox, McDermott Company Research and Development Division, Alliance, OH
Futato, RJ
Babcock & Wilcox, McDermott Company Research and Development Division, Alliance, OH
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Details
Developed by Committee: E08
Pages: 68–83
DOI: 10.1520/STP34518S
ISBN-EB: 978-0-8031-4923-6
ISBN-13: 978-0-8031-0419-8