Weld Characterization and Residual Stress Measurements for TC-128B Steel Plate

[+] Author and Article Information
M. A. Sutton, I. Abdelmajid, W. Zhao

Department of Mechanical Engineering, University of South Carolina, Columbia, SC 29208

D. Wang, C. Hubbard

High Temperature Materials Lab, ORNL, Oak Ridge, TN 37831

J. Pressure Vessel Technol 124(4), 405-414 (Nov 08, 2002) (10 pages) doi:10.1115/1.1487878 History: Received July 31, 2001; Revised April 15, 2002; Online November 08, 2002
Copyright © 2002 by ASME
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Rolled TC-128 steel plate section with double-pass, circumferential weld. Chalk outline is region where specimen is located.
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Etched transverse section across double-pass weld
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Typical Knoop micro-hardness profiles for TC-128 welds
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Photographs of microstructure in base metal, HAZ, and weld regions in transverse section of TC-128B. Scale is in μm.
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Test specimen mounted in ORNL neutron diffraction facility
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Orientation of specimen for measurement of residual normal strains in (a) N-T plane, (b) L-N plane, and (c) T-L plane
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(a) Positions of all points where strain measurements were acquired by neutron diffraction, along locations of FW, SW, BM, and HAZ (all dimensions in mm); (b) diffraction peak width variations for transverse scan of specimen
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Principal residual stresses in non-heat treated TC-128B specimen: (a) N=14.5 mm, (b) N=12.7 mm, (c) N=9.1 mm, (d) N=3.7 mm, and (e) N=1.9 mm, as shown in the figure
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Von Mises residual stresses in nonheat-treated specimen
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Residual stresses in heat-treated, unconstrained specimen: (a) longitudinal stress, (b) normal stress, and (c) transverse stress, as shown by the vertical axis title




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