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Proceedings Papers

Tempering Efficiency Evaluation for Dissimilar Weld Overlays

Eun Jang, Jeffrey Stewart, Yuxiang Luo, Shijie Qu, Boian Alexandrov, Steven L. McCracken, Jonathan Tatman, Darren Barborak, Jorge A. Penso
Proc. ASME. PVP2020, Volume 1: Codes and Standards, V001T01A098, August 3, 2020
Paper No: PVP2020-21708
DOI: https://doi.org/10.1115/PVP2020-21708
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Topics: Overlays (Materials engineering), Thermocouples, Temperature, Welding, Cycles, Heat, Alloys, Base metals, Corrosion, Energy generation
Proceedings Papers

Auxiliary Beam Stress Improved Laser Welding for Repair of Irradiated Light Water Reactor Components

Jian Chen, Jonathan Tatman, Zhili Feng, Roger Miller, Wei Tang, Maxim Gussev, Keith Leonard, Benjamin Sutton, Greg Frederick
Proc. ASME. PVP2019, Volume 1: Codes and Standards, V001T01A093, July 14–19, 2019
Paper No: PVP2019-93667
DOI: https://doi.org/10.1115/PVP2019-93667
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Topics: Laser welding, Light water reactors, Maintenance, Stress, Welding, Nuclear reactors, Compression, Computer simulation, Cooling, Cracking (Materials)
Proceedings Papers

Proactive In-Situ Welding Stress Control for Laser Repair Welding of Irradiated Austenitic Materials

Jian Chen, Jonathan Tatman, Zongyao Chen, Zhili Feng, Greg Frederick
Proc. ASME. PVP2017, Volume 6B: Materials and Fabrication, V06BT06A020, July 16–20, 2017
Paper No: PVP2017-65202
DOI: https://doi.org/10.1115/PVP2017-65202
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Topics: Lasers, Maintenance, Stress, Welding, Computer simulation, Light water reactors, Cracking (Materials), Fracture (Process), Helium, Compressive stress
Proceedings Papers

Applications of Welding to Repair Irradiated Reactor Internals

Wayne Lunceford, Nathan Palm, Eric Willis, Jonathan Tatman, Steven McCracken
Proc. ASME. PVP2016, Volume 1B: Codes and Standards, V01BT01A044, July 17–21, 2016
Paper No: PVP2016-64007
DOI: https://doi.org/10.1115/PVP2016-64007
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Topics: Maintenance, Welding, Helium, Heat, Cracking (Materials), Fluence (Radiation measurement), Fracture (Process), Grain boundaries, Light water reactors, Boiling water reactors
Proceedings Papers

Technical Basis for Code Case N-847: Excavate and Weld Repair (EWR) for SCC Mitigation

Steven McCracken, Jonathan Tatman, Pete Riccardella
Proc. ASME. PVP2016, Volume 1B: Codes and Standards, V01BT01A042, July 17–21, 2016
Paper No: PVP2016-63769
DOI: https://doi.org/10.1115/PVP2016-63769
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Topics: Maintenance, Overlays (Materials engineering), ASME Standards, Design, In-service inspection, Metals, Nuclear reactors, Pipes, Stress, Stress corrosion cracking