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Title: Residual stresses at pinch welds in small stainless steel tubes

Abstract

Stress corrosion cracking of pinch-welded Type 304L stainless steel tubes has been used to determine the locations and magnitudes of tensile residual stresses. Cracking severity, a measure of the extent of tensile stresses above a threshold level, has been correlated with welding parameters and annealing to define conditions that minimize the possibility of environment-assisted slow crack growth on the tube interior. Welding with low current, low electrode force and no restraint, and laser annealing after welding were found to minimize interior stress corrosion cracking at welds in cold drawn tubes. Preliminary work with annealed tubes indicates that pinch welding parameters influence tensile stresses differently.

Authors:
Publication Date:
Research Org.:
Savannah River Lab., Aiken, SC (USA)
OSTI Identifier:
6490527
Report Number(s):
DP-MS-86-166; CONF-8704128-1
ON: DE87010186
DOE Contract Number:  
AC09-76SR00001
Resource Type:
Conference
Resource Relation:
Conference: Conference on residual stress in design, process, and materials, Cincinnati, OH, USA, 27 Apr 1987; Other Information: Paper copy only, copy does not permit microfiche production
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; STAINLESS STEEL-304L; STRESS CORROSION; WELDED JOINTS; CRACK PROPAGATION; CRACKS; RESIDUAL STRESSES; TUBES; ALLOYS; CHEMICAL REACTIONS; CHROMIUM ALLOYS; CHROMIUM STEELS; CHROMIUM-NICKEL STEELS; CORROSION; CORROSION RESISTANT ALLOYS; HEAT RESISTANT MATERIALS; HEAT RESISTING ALLOYS; IRON ALLOYS; IRON BASE ALLOYS; JOINTS; MATERIALS; NICKEL ALLOYS; STAINLESS STEELS; STEELS; STRESSES; 360105* - Metals & Alloys- Corrosion & Erosion

Citation Formats

Mosley, W C. Residual stresses at pinch welds in small stainless steel tubes. United States: N. p., 1987. Web.
Mosley, W C. Residual stresses at pinch welds in small stainless steel tubes. United States.
Mosley, W C. 1987. "Residual stresses at pinch welds in small stainless steel tubes". United States.
@article{osti_6490527,
title = {Residual stresses at pinch welds in small stainless steel tubes},
author = {Mosley, W C},
abstractNote = {Stress corrosion cracking of pinch-welded Type 304L stainless steel tubes has been used to determine the locations and magnitudes of tensile residual stresses. Cracking severity, a measure of the extent of tensile stresses above a threshold level, has been correlated with welding parameters and annealing to define conditions that minimize the possibility of environment-assisted slow crack growth on the tube interior. Welding with low current, low electrode force and no restraint, and laser annealing after welding were found to minimize interior stress corrosion cracking at welds in cold drawn tubes. Preliminary work with annealed tubes indicates that pinch welding parameters influence tensile stresses differently.},
doi = {},
url = {https://www.osti.gov/biblio/6490527}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 1987},
month = {Thu Jan 01 00:00:00 EST 1987}
}

Conference:
Other availability
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