The effect of vanadium on the toughness of welds in structural and pipeline steels

Journal Article · Sat Jul 01 00:00:00 EDT 1995 · Welding Journal

OSTI ID:89688

Hart, P H.M. ^[1]; Mitchell, P S

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1. TWI, Cambridge (United Kingdom). Materials Dept.

An extensive program of work to determine the HAZ toughness of line pipe and structural steels, containing up to 0.20% vanadium, with nitrogen in the range 0.005 to 0.018%, and niobium additions up to 0.05%, has been carried out using two-pass welds at 4.9 kJ/mm and multipass welds at 2 and 5 kJ/mm in both the as-welded and postweld heat treatment conditions. Using Charpy, CTOD, hardness measurement and metallographic examination, it has been demonstrated that in the as-welded condition substantial levels of vanadium can be tolerated with no adverse effect on HAZ toughness.

• OSTI ID: 89688
• Journal Information: Welding Journal, Vol. 74, Issue 7; Other Information: PBD: Jul 1995
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
VANADIUM
METALLURGICAL EFFECTS
LOW ALLOY STEELS
HEAT AFFECTED ZONE
FRACTURE PROPERTIES
WELDED JOINTS
EXPERIMENTAL DATA