The effects of thermal cycling on residual stresses in thick- walled stainless steel pipe

The effects of thermal cycling on residual stresses are studied in thick-walled 316L stainless steel pipe. A relatively small AT of 280°F is considered. The residual stresses are measured by an x-ray diffraction technique. The initial stress state of the pipe wall shows periodic and random variability in stress from -30 to 20 ksi. The pipe was thermal cycled between a furnace and a quenchant bath. The macro residual stresses became 10 ksi more compressive after the first thermal cycle. Thereafter no significant changes are measured in the macro residual stresses, however, the micro residual stresses continue to increase linearly with the number of cycles.

Name thesis:degree_name

Master of Science

Level thesis:degree_level

masters

Discipline thesis:degree_discipline

Materials Engineering

Department dc:contributor.department

Materials Engineering

Grantor dc:publisher

Virginia Tech

Year dc:date.issued

1990

Author dc:creator

• Morgan, Nancy Abigail

Statement dc:rights

• In Copyright

Licence dc:rights.uri

• http://rightsstatements.org/vocab/InC/1.0/

Language dc:language.iso

en

Dc Identifier Other

etd-04082009-040419

OAI identifier oai:identifier

oai:vtechworks.lib.vt.edu:10919/41978