Correlation between Interface Microstructure and Bond Strength of Al6061/Al6061 HIP-Bonded Plates for Fuel Cladding Application

Song, Miao; Kalsar, Rajib; Miller, Cody; Overman, Nicole; Johnson, Kenneth I.; Roosendaal, Timothy; Lavender, Curt; Joshi, Vineet V.

doi:10.1016/j.mtla.2022.101458

Correlation between Interface Microstructure and Bond Strength of Al6061/Al6061 HIP-Bonded Plates for Fuel Cladding Application

Journal Article · Tue May 17 00:00:00 EDT 2022 · Materialia

DOI:https://doi.org/10.1016/j.mtla.2022.101458· OSTI ID:1870635

^[1]; Kalsar, Rajib ^[1]; ^[2]; ^[1]; Johnson, Kenneth I. ^[1]; Roosendaal, Timothy ^[1]; Lavender, Curt ^[1]; Joshi, Vineet V. ^[1]

Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

The effects of hot isostatic pressing (HIP) processing parameters on microstructure and bond strength of Al6061/Al6061 plate interfaces were systemically investigated at the micro- and nanoscale. The HIP bonding of the two aluminum plates was performed at four temperatures: 350°C, 400°C, 450°C, and 560°C. The results reveal the formation of micron scaled Mg₂Si precipitate and uniform nano scaled Mg₂Al₂O₅ oxide at the interface. The formation of Mg₂Al₂O₅ is closely associated with the fast bulk diffusion of Mg from the Al matrix to the amorphous Al₂O₃/Al interface and subsequent reaction between Mg and Al₂O₃. Finally, the highest and lowest bond strengths were observed in samples HIP bonded at 450°C and 350°C, respectively.

View Accepted Manuscript (DOE)

Research Organization:: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA); USDOE National Nuclear Security Administration (NNSA), Office of Defense Nuclear Nonproliferation

Grant/Contract Number:: 89233218CNA000001; AC05-76RL01830

OSTI ID:: 1870635

Alternate ID(s):: OSTI ID: 1962277

Report Number(s):: LA-UR-22-20996

Journal Information:: Materialia, Journal Name: Materialia Vol. 23; ISSN 2589-1529

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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36 MATERIALS SCIENCE
bonding
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transmission electron microscopy

Correlation between Interface Microstructure and Bond Strength of Al6061/Al6061 HIP-Bonded Plates for Fuel Cladding Application

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