Creep properties of a Type 308 stainless steel pressure vessel weld with controlled residual elements

Conference · Tue Dec 31 23:00:00 EST 1974

OSTI ID:4012750

King, R T; Stiegler, J O; Goodwin, G M

A SMA Type 308 stainless steel pressure vessel test weld with the CRE (controlled residual elements) boron (0.007 percent), titanium (0.06 percent), and phosphorus (0.04 percent) has been tested in creep between 482 and 650$sup 0$C. Improved ductility compared with that of standard welds in tests lasting several thousands of hours is observed. Systematic variations of creep properties through the weld are due to thermal and mechanical cycling during the welding process. Anisotropic deformation related to local substructure and preferred crystallographic orientation occurs. Creep strengths are acceptable by present design rules. (auth)

• Research Organization: Oak Rige National Lab., TN
• NSA Number: NSA-33-026757
• OSTI ID: 4012750
• Country of Publication: United States
• Language: English

Related Subjects

*PRESSURE VESSELS-- WELDED JOINTS
*STAINLESS STEEL-308-- CREEP
360103* --Materials--Metals & Alloys--Mechanical Properties
ANISOTROPY
BORON
DEFORMATION
DUCTILITY
GRAIN ORIENTATION
HIGH TEMPERATURE
IMPURITIES
N50230* --Metals
Ceramics
& Other Materials--Metals & Alloys--Properties
Structure & Phase Studies
PHOSPHORUS
THERMAL CYCLING
TITANIUM