Residual weldment stresses in controlled deposition repairs to 1{1/4}Cr-{1/2}Mo and 2{1/4}Cr-1Mo steels

Conference · Sun Dec 01 04:00:00 EST 1996

OSTI ID:403195

Leggatt, R H ^[1]; Friedman, L M ^[2]

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1. TWI, Cambridge (United Kingdom)
2. Edison Welding Inst., Columbus, OH (United States)

The Edison Welding Institute and TWI of Cambridge, England have recently completed a joint program to demonstrate the acceptability to weld repair 1{1/4}Cr-{1/2}Mo and 2{1/4}Cr-1Mo steels with controlled deposition welding and without PWHT. As part of this program, the as-welded residual stresses were measured in large, heavy section weldments in both Cr-Mo steels. Full weldment samples were then exposed to long-time, high temperature heat treatments to provide a measure of the decay of residual weldment stresses when exposed to service temperature and time. Both surface and through-thickness residual stress measurements were made.the surface measurements were made by the center hole strain gauge method, while the through-thickness stresses were measured using the block removal, splitting, and layering method.

• OSTI ID: 403195
• Report Number(s): CONF-960706--; ISBN 0-7918-1774-1
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ARC WELDING
DATA
HEAT AFFECTED ZONE
HEAT TREATMENTS
REPAIR
RESIDUAL STRESSES
STEEL-CR2MO
STEEL-CRMO
WELDED JOINTS