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TECHNICAL PAPERS

Weld Repair of 1-1/4Cr-1/2Mo Steel Piping Girth Welds

[+] Author and Article Information
R. Viswanathan

Electric Power Research Institute, 3412 Hillview Avenue, Palo Alto, CA 94304-1395

D. Gandy

Materials and Fossil Application Repair and Replacement Applications Center, Electric Power Research Institute, Charlotte, NC 28262

S. Findlan

Repair and Replacement Applications Center, Electric Power Research Institute, Charlotte, NC 28262

J. Pressure Vessel Technol 122(2), 139-145 (Mar 07, 2000) (7 pages) doi:10.1115/1.556163 History: Received September 10, 1999; Revised March 07, 2000
Copyright © 2000 by ASME
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References

Figures

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Macrograph of the girth weld plug sample removed from Georgia Power Company’s Hammond Plant Unit 2 hot reheat piping
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Microstructures found in the girth weld plug sample from hot reheat piping, nital etch, 400×—(a) base metal, (b) CGHAZ, (c) FGHAZ
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A Wye piping section including the two girth welds TC16WR and TC17WR
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Microstructure of (a) TC16WR fusion line region; (b) CGHAZ region; (c) FGHAZ region
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Microhardness test results for TC17WR and TC17SR
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Larson-Miller rupture data plot for (a) TC16, and (b) TC17 with ASTM reference curve for annealed 1-1/4Cr-1/2Mo steel
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Larson-Miller representation of rupture test results using linear scale for stress for (a) TC16, and (b) TC17
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Results of isostress rupture tests for TC16WR (a) tr as a function of T, and (b) tr as a function of 1/T
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Results of isostress rupture tests for TC17WR (a) tr as a function of T, and (b) tr as a function of 1/T

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