18 ADVANCED MATERIALS & PROCESSES | MAY/JUNE 2023 knowledge gaps in the process-properties-microstructure-performance relationships for this technology in high-temperature applications. To address these gaps, a multidisciplinary team with expertise in computational modeling, processing science, material characterizations, and performance testing has been formed and work has begun with the overall goal to develop the approaches and needed data for acceptance of this technology in the Section IX of the ASME BPVC for nuclear applications. ~AM&P For more information: Mohamed Elbakhshwan, assistant scientist, University of Wisconsin–Madison, Engineering Research Building, Rm. 437, 1500 Engineering Dr., Madison, WI 53711, elbakhshwan@wisc.edu. Acknowledgments This research is being performed using funding received from the DOE Office of Nuclear Energy’s Nuclear Energy University Program, Integrated Research Program entitled “Advancing Diffusion Bonding for Compact Heat Exchangers” with project number IRP-22-27979. References 1. A. Alhazaa and N. Haneklaus, Diffusion Bonding and Transient Liquid Phase (TLP) Bonding of Type 304 and 316 Austenitic Stainless Steel – A Review of Similar and Dissimilar Material Joints, Metals, 10.5, 2020. 2. A. Wildberger, Vacuum Pressure Engineering (VPE). 3. J. Wright, Next Generation Nuclear Plant Steam Generator and Intermediate Heat Exchanger Materials Research and Development Plan, INL/ EXT-08-14107 Rev. 1, 2010. 4. S. Kim, et al., Microstructure and Tensile Properties of Diffusion Bonded Austenitic Fe-base Alloys – Before and After Exposure to High Temperature Supercritical-CO2, Metals, 10.4:480, 2020. 5. I. Sah and E. Kim, Enhanced Joint Integrity of Diffusion-welded Alloy 617 by Controlling the Micro-chemistry Near the Surface, Materials Today Communication, 29:102770. 6. I. Sah, J. Hwang, and E. Kim, Creep Behavior of Diffusion-welded Alloy 617, Metals, 11.5: 830, 2021. 7. I. Sah, et al., The Recovery of Tensile Ductility in Diffusion-bonded Ni-base Alloys by Post-bond Heat Treatments, Materials Design, 47:581–589, 2013. 8. S. Mylavarapu, et al., Fabrication and Design Aspects of High-temperature Compact Diffusion Bonded Heat Exchangers, Nuclear Engineering and Design, 249:49–56, 2021. 9. H. Mahajan, et al., Proposed Material Properties, Allowable Stresses, and Design Curves of Diffusion Bonded Alloy 800H for the ASME Code Section III Division 5. Journal of Pressure Vessel Technology, Transactions of the ASME, 144.6:061201, 2022. 10. H. Mahajan, A. Lima, T. Hassan, Mechanical and Microstructural Performance Evaluation of Diffusion Bonded Alloy 800H for Very High Temperature Nuclear Service, Journal of Engineering Materials and Technology, Transactions of the ASME, 144.2:021008, 2022. 11. H. Mahajan, et al., Mechanical and Microstructural Characterization of Diffusion Bonded 800H, ASME 2020 Pressure Vessels & Piping Conference, 3:21502, 2020. Are you maximizing your ASM membership? Expand your knowledge and apply your ASM International member-only discounts to a variety of professional development resources: • Reference Materials • ASM Handbooks Online • Technical Journals • Continuing Education Courses Learn more about your membership benefits by visiting: asminternational.org/membership
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