TY - JOUR

T1 - Transformation of amorphous passive oxide film on Zr65Cu17.5Ni10Al7.5 metallic glass ribbons

AU - Sarac, Baran

AU - Kvaratskheliya, Askar

AU - Zadorozhnyy, Vladislav

AU - Ivanov, Yurii P.

AU - Klyamkin, Semen

AU - Xi, Lixia

AU - Berdonosova, Elena

AU - Kaloshkin, Sergey

AU - Zadorozhnyy, Mikhail

AU - Eckert, Jürgen

N1 - Publisher Copyright: © 2022 Elsevier B.V.

PY - 2022/12/25

Y1 - 2022/12/25

N2 - Zr-based metallic glass with favorable properties and a stable surface oxide layer is foreseen as an alternative material for water/nuclear reactor pressure systems. The high stability of Zr65Cu17.5Ni10Al7.5 metallic glass (MG) in anodic and cathodic regions within 0.5 M H2SO4 solution is evidenced by the negligible shift in the corrosion potential upon linear sweep voltammetry cycles. The recorded passivation current density of 15 mA cm–2 is very similar to 430 stainless steel. The formation of an amorphous Zr-rich oxide phase and slight dissolution of the native ZrO2 layer are confirmed by scanning transmission electron microscopy – energy dispersive X-ray analysis, which result from the interaction of hydronium ions (H3O+) with the oxide layer during linear polarization. Furthermore, promising hydrogen absorption of the produced Zr-based MG ribbons (1.33 %wt, non-reversible) by Sieverts-type apparatus were recorded at 400 °C and under 6 MPa, which evidences that this alloy can minimize the hydrogen evolution within the chamber due to the coverage with an oxide film and thereby prevent accidents.

AB - Zr-based metallic glass with favorable properties and a stable surface oxide layer is foreseen as an alternative material for water/nuclear reactor pressure systems. The high stability of Zr65Cu17.5Ni10Al7.5 metallic glass (MG) in anodic and cathodic regions within 0.5 M H2SO4 solution is evidenced by the negligible shift in the corrosion potential upon linear sweep voltammetry cycles. The recorded passivation current density of 15 mA cm–2 is very similar to 430 stainless steel. The formation of an amorphous Zr-rich oxide phase and slight dissolution of the native ZrO2 layer are confirmed by scanning transmission electron microscopy – energy dispersive X-ray analysis, which result from the interaction of hydronium ions (H3O+) with the oxide layer during linear polarization. Furthermore, promising hydrogen absorption of the produced Zr-based MG ribbons (1.33 %wt, non-reversible) by Sieverts-type apparatus were recorded at 400 °C and under 6 MPa, which evidences that this alloy can minimize the hydrogen evolution within the chamber due to the coverage with an oxide film and thereby prevent accidents.

KW - Electron microscopy

KW - Fuel cladding

KW - Gas-solid reactions

KW - Metallic glass

KW - Passivation

KW - Zirconium oxide

UR - http://www.scopus.com/inward/record.url?scp=85139028622&partnerID=8YFLogxK

U2 - 10.1016/j.jallcom.2022.167265

DO - 10.1016/j.jallcom.2022.167265

M3 - Article

AN - SCOPUS:85139028622

VL - 929.2022

JO - Journal of alloys and compounds

JF - Journal of alloys and compounds

SN - 0925-8388

IS - 25 December

M1 - 167265

ER -