Creep Rupture Properties of High-Temperature Bainitic Steels After Weld Repair

[+] Author and Article Information
J. E. Indacochea, G. Wang

University of Illinois at Chicago, Civil & Materials Engineering Dept. (m.c. 246), 842 West Taylor Street, Chicago, IL 60607

R. Seshadri

Syntel Inc., Troy, MI

Y. K. Oh

KIA Motors, Seoul, Korea

J. Eng. Mater. Technol 122(3), 259-263 (Mar 01, 2000) (5 pages) doi:10.1115/1.482796 History: Received December 15, 1999; Revised March 01, 2000
Copyright © 2000 by ASME
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Grahic Jump Location
Schematic diagram of different regions and subzones of the heat-affected zone of low carbon steel
Grahic Jump Location
Stress rupture times for crossweld samples machined from three locations of the groove weld. The test was conducted at 1200°F (649°C) and 12 ksi (83.0 MPa).
Grahic Jump Location
Secondary and tertiary creep rates of creep rupture crossweldments corresponding to top, middle and root samples. Creep tests were conducted at 1200°F (649°C) and 12 ksi (83.0 MPa).
Grahic Jump Location
Creep rupture results for crossweld rupture specimens machined from different locations of the GTAW-narrow groove weld tests were conducted at 12 ksi (83.0 MPa)
Grahic Jump Location
Creep rupture curves for 12 percent Cr SAW crosswelds in as-welded and aged conditions
Grahic Jump Location
Secondary and tertiary creep rates for 12 percent Cr crosswelds in unaged and aged conditions
Grahic Jump Location
TEM micrographs of carbides corresponding to: (a) as retired rotor steel, and (b) near failure location of 214Cr-1Mo-V SAW creep specimen (full-scale rotor weld) tested at 83.0 MPa (12 ksi) and 663°C (1225°F)



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