Radiation response of Ti₂AlC MAX phase coated Zircaloy-4 for accident tolerant fuel cladding Academic Article

abstract

• 2019 Elsevier B.V. A Ti2AlC MAX phase material was deposited on Zircaloy-4 substrate using the cold spray process, with the goal of enhancing the accident tolerance of zirconium-alloy fuel cladding in light water reactors. The samples were annealed up to 923 K to study the intermetallic phase formation between the coating and Zircaloy-4 substrate. Three interface compounds, ZrAl2, ZrAl, and Zr3Al, were identified and the activation energy of the interfacial intermetallic compound growth was determined. The radiation response of the coating material and interfacial intermetallic compounds after 3.5 MeV Zr2+ ion irradiation was investigated by transmission electron microscopy and nanoindentation. Ion irradiation disrupted the nanolamellar structure of the Ti2AlC coating while amorphization was observed some of the intermetallic compounds. Nanoindentation revealed overall hardening of the Ti2AlC coating and Zr3Al phase, with no significant change observed in the ZrAl2 and ZrAl phases.

authors

• Shao, Lin

published proceedings

• JOURNAL OF NUCLEAR MATERIALS

author list (cited authors)

• Gigax, J. G., Kennas, M., Kim, H., Wang, T., Maier, B. R., Yeom, H., ... Shao, L.

citation count

• 31

publication date

• September 2019

publisher

• Elsevier  Publisher

keywords

• Accident Tolerant Fuel Cladding
• Intermetallic Formation
• Ion Irradiation
• Nanomechanical Testing

Digital Object Identifier (DOI)

• 10.1016/j.jnucmat.2019.05.021

start page

• 26

end page

• 32

volume

• 523

URL

• http://dx.doi.org/10.1016/j.jnucmat.2019.05.021