TY - GEN
T1 - AN INITIAL ASSESSMENT OF THE CREEP-RUPTURE STRENGTHS FOR WELDMENTS WITH ALLOY 800H BASE METAL AND ALLOY 617 FILLER METAL
AU - Rupp, Ryann E.
AU - Sham, Ting Leung
N1 - Funding Information:
This research was sponsored by the United States (U.S.) Department of Energy (DOE) under Contract No. DE-AC07-05ID14517 with INL, which is managed and operated by Battelle Energy Alliance. Programmatic direction was provided by the Office of Nuclear Reactor Deployment of the DOE Office of Nuclear Energy. The authors gratefully acknowledge the support provided by Sue Lesica, Federal Lead for Advanced Materials, Advanced Reactor Technologies (ART) Program; Diana Li, Federal Manager, ART Gas-Cooled Reactors (GCR) Campaign; Gerhard Strydom, INL, National Technical Director, ART GCR Campaign.
Funding Information:
This manuscript has been co-authored by Battelle Energy Alliance, LLC, under Contract No. DE-AC07-05ID14517. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a nonexclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes.
Funding Information:
This research was sponsored by the United States (U.S.) Department of Energy (DOE) under Contract No. DE-AC07-05ID14517 with INL, which is managed and operated by Battelle Energy Alliance. Programmatic direction was provided by the Office of Nuclear Reactor Deployment of the DOE Office of Nuclear Energy. The authors gratefully acknowledge the support provided by Sue Lesica, Federal Lead for Advanced Materials, Advanced Reactor Technologies (ART) Program; Diana Li, Federal Manager, ART Gas-Cooled Reactors (GCR) Campaign; Gerhard Strydom, INL, National Technical Director, ART GCR Campaign. Most of the INL 800H/82 creep-rupture tests were conducted by Thomas M. Lillo. The authors acknowledge helpful discussions with Richard N. Wright, Structural Alloys Limited Liability Company, and Michael D. McMurtrey, INL. Finally, the authors are appreciative to the rest of their team for their contributions to this work: J. Wesley Jones, Todd C. Morris, Justine M. Schulte, and Joel A. Simpson.
Publisher Copyright:
Copyright © 2022 by The United States Government.
PY - 2022
Y1 - 2022
N2 - In Section III, Division 5 of the American Society of Mechanical Engineers Boiler and Pressure Vessel Code, Alloy 800H is qualified for elevated-temperature nuclear construction for temperatures up to 760°C (1400°F) and a maximum service life of 300,000 hours. There are two permissible filler metals for Alloy 800H weldments specified in Division 5: ENiCrFe-2 (Alloy A) and ERNiCr-3 (Alloy 82). Low creep-rupture strengths of these weldments at the upper limits of the qualified temperatures and service lives may restrict the design envelope for elevated-temperature nuclear construction with Alloy 800H. As a result, an alternative filler metal is desired to improve the creep-rupture strengths of Alloy 800H weldments for the qualified temperatures and service lives. This work investigates an overmatched filler metal. Specifically, a weldment with Alloy 800H base metal and Alloy 617 filler metal fabricated by semiautomated gas tungsten arc welding is investigated. A scoping creep-rupture test program was conducted of cross-weld specimens at temperatures ranging from 750 to 1000°C (1292 to 1832°F). Preliminary results on the creep-rupture strengths of the Alloy 800H weldment with an Alloy 617 filler metal do not show significant improvement compared to the filler metals currently qualified in Division 5 for Alloy 800H weldments. Consequently, work is in progress to investigate a matching filler metal.
AB - In Section III, Division 5 of the American Society of Mechanical Engineers Boiler and Pressure Vessel Code, Alloy 800H is qualified for elevated-temperature nuclear construction for temperatures up to 760°C (1400°F) and a maximum service life of 300,000 hours. There are two permissible filler metals for Alloy 800H weldments specified in Division 5: ENiCrFe-2 (Alloy A) and ERNiCr-3 (Alloy 82). Low creep-rupture strengths of these weldments at the upper limits of the qualified temperatures and service lives may restrict the design envelope for elevated-temperature nuclear construction with Alloy 800H. As a result, an alternative filler metal is desired to improve the creep-rupture strengths of Alloy 800H weldments for the qualified temperatures and service lives. This work investigates an overmatched filler metal. Specifically, a weldment with Alloy 800H base metal and Alloy 617 filler metal fabricated by semiautomated gas tungsten arc welding is investigated. A scoping creep-rupture test program was conducted of cross-weld specimens at temperatures ranging from 750 to 1000°C (1292 to 1832°F). Preliminary results on the creep-rupture strengths of the Alloy 800H weldment with an Alloy 617 filler metal do not show significant improvement compared to the filler metals currently qualified in Division 5 for Alloy 800H weldments. Consequently, work is in progress to investigate a matching filler metal.
KW - Alloy 617 filler metal
KW - Alloy 800H base metal
KW - Weldments
KW - creep-rupture strength
KW - elevated-temperature nuclear construction
UR - http://www.scopus.com/inward/record.url?scp=85142395920&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/de394ea8-2bba-3515-aa99-4b81a28069cc/
U2 - 10.1115/PVP2022-83919
DO - 10.1115/PVP2022-83919
M3 - Conference contribution
AN - SCOPUS:85142395920
T3 - American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
BT - American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 2022 Pressure Vessels and Piping Conference, PVP 2022
Y2 - 17 July 2022 through 22 July 2022
ER -